Mackie SP2400 Instruction Manual

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Page 1

SP2400 Dual-Channel Program Controller/Amplifier

Instruction Manual

OFF

MUSIC CONTROLLER

GAIN +40dB

PHANTOM

HIGH

1234

+12–12U+12–12

MASTER VOLUME

SP2400

ZONE B

3 0 3 6

9 15 30 55

MANUFACTURING DATE

SERIAL NUMBER

LOCAL

STEREO

1234

12345678

1234

MONO

+15–15U+15–15

REMOTE

HIGH 12kFREQMIDLOW 80Hz

FOR CLASS 2 WIRING 100/70V/8

3K400

250

+15–15

PAGING

MIC

VOX

PRE OUT

–

AMP IN

ZONE A

INPUTS INPUTS

1234 1234

115V 60Hz FUSE 115/T8 A 220 WATTS 230V 50Hz FUSE 230/ T4A 220 WATTS

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

CAUTION:

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT STEREO LEFT

OUTPUT SUITABLE

FOR CLASS 2 WIRING

–

100/70V/8

AGB AGB

12345678

AMP ADDRESS

RS485 REMOTE

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

MIC/LINE INPUT B PROGRAM EQ

LOWGAIN

–

AMBIENT

MIC

OFF

DIRECT

OUTPUT

ZONE A

OUTPUT SUITABLE

–

12345678

AMP ADDRESS RS485 REMOTE

MASTER VOLUME

3 0 3 6

9 15 30 55

PROGRAM INPUTS

1234

PRIORITY

AMBIENT

LOWGAIN

–

MIC

SP2400 MUSIC CONTROLLER

OVERLOAD

STATUS

MIC/LINE INPUT A PROGRAM EQ

GAIN +40dB

PHANTOM

HIGH

1234

+12–12U+12–12

PARALLEL

GROUND ALL CALL

INPUTS

COMM PORT

PAGING MIC

ZONE ZONE

CONTROL

–

PAGING

MIC VOX

PRE OUT

–

AMP IN

1234

GAIN +40dBPHANTOM

+15–15U+15–15

POWER

HIGH

LOWGAIN

+12–12U+12–12

HIGH 12kFREQMIDLOW 80Hz

3K400

250

+15–15

Page 2

CAUTION AVIS

RISK OF ELECTRIC SHOCK

RISQUE DE CHOC ELECTRIQUE

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK

NO USER-SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED PERSONNEL

ATTENTION: POUR EVITER LES RISQUES DE CHOC

ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN

ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER

L'ENTRETIEN AU PERSONNEL QUALIFIE.

AVIS: POUR EVITER LES RISQUES D'INCENDIE OU

D'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE

The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons.

Le symbole éclair avec point de flèche à l'intérieur d'un triangle équilatéral est utilisé pour alerter l'utilisateur de la présence à l'intérieur du coffret de "voltage dangereux" non isolé d'ampleur suffisante pour constituer un risque d'éléctrocution.

The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

Le point d'exclamation à l'intérieur d'un triangle équilatéral est employé pour alerter les utilisateurs de la présence d'instructions importantes pour le fonctionnement et l'entretien (service) dans le livret d'instruction accompagnant l'appareil.

DO NOT OPEN

NE PAS OUVRIR

DO NOT REMOVE COVER (OR BACK)

A LA PLUIE OU A L'HUMIDITE

1. SAFETY INSTRUCTIONS

1. Read Instructions — Read all the safety and operation instructions before operating the SP2400.

2. Retain Instructions — The safety and operating instructions should be kept for future reference.

3. Heed Warnings — Follow all warnings on the SP2400 and in these operating instructions.

4. Follow Instructions — Follow all operating and other instructions.

5. Water and Moisture — Do not use the SP2400 near water – for example, near a

bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, near a swimming pool, etc.

6. Ventilation — This SP2400 should be situated so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug, or similar surface that may block any ventilation openings, or placed in a built-in installation such as a bookcase or cabinet that may impede the flow of air through ventilation openings.

7. Heat — Locate the SP2400 away from heat sources such as radiators, or other devices which produce heat.

8. Power Sources — Connect the SP2400 to a power supply only of the type described in these operation instructions or as marked on the rear panel.

9. Power Cord Protection — Route power supply cords so that they are not likely to be walked upon or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit the SP2400.

10. Object and Liquid Entry — Do not drop objects into or spill liquids into the inside of the SP2400.

11. Damage Requiring Service — The SP2400 should be serviced only by qualified service personnel when:

A. The power-supply cord or the plug has been damaged; or

B. Objects have fallen, or liquid has spilled into the SP2400; or

C. The SP2400 has been exposed to rain; or

D. The SP2400 does not appear to operate normally or exhibits a marked

change in performance; or

E. The SP2400 has been dropped, or its chassis damaged.

12. Servicing — The user should not attempt to service the SP2400 beyond those

means described in this operating manual. All other servicing should be referred to the Mackie Service Department.

13. To prevent electric shock, do not use this polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.

Pour prévenir les chocs électriques ne pas utiliser cette fiche polariseé avec un prolongateur, un prise de courant ou une autre sortie de courant, sauf si les lames peuvent être insérées à fond sans laisser aucune pariie à découvert.

14. Grounding or Polarization — Precautions should be taken so that the grounding or polarization means of the SP2400 is not defeated.

15. This apparatus does not exceed the Class A/Class B (whichever is applicable) limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communications.

ATTENTION —Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant las limites applicables aux appareils numériques de class A/de class B (selon le cas) prescrites dans le règlement sur le brouillage radioélectrique édicté par les ministere des communications du Canada.

WARNING — To reduce the risk of fire or electric

shock, do not expose this appliance to rain or moisture.

TABLE OF CONTENTS

1. SAFETY INSTRUCTIONS ....................................... 2

2. INTRODUCTION ..................................................... 3

KEY FEATURES................................................... 3

FRONT PANEL FEATURES ................................. 4

REAR PANEL FEATURES.................................... 4

3. INSTALLATION ....................................................... 6

APPLICATION DIAGRAMS ................................. 6

TIPS ON INSTALLING AND USING

THE SP2400 ....................................................... 10

CONNECTIONS ................................................. 11

INTERNAL SETTINGS ...................................... 13

AC POWER CONSIDERATIONS ....................... 15

THERMAL CONSIDERATIONS......................... 15

4. OPERATION .......................................................... 16

SP2400 – 2

SP2400 QUICK START ...................................... 16

USING INPUTS 1-4 ........................................... 18

USING THE 3-BAND EQ ................................... 19

USING THE PAGING MIC................................. 19

USING THE AMBIENT MIC .............................. 20

USING THE LOCAL MIC/LINE INPUT .............. 20

USING THE PRE OUT/AMP IN CONNECTIONS .. 21

LEFT AND RIGHT OUTPUTS............................ 21

USING THE REMOTE CONNECTION .............. 21

USING THE RS485 CONNECTION................... 22

UPGRADING THE SOFTWARE ........................ 22

5. SPECIFICATIONS.................................................. 23

BLOCK DIAGRAM ............................................. 23

SP2400 SPECIFICATIONS ................................. 24

6. SERVICE INFORMATION ..................................... 25

APPENDIX A: Default Settings ................................... 25

APPENDIX B: Button Modes....................................... 26

APPENDIX C: Voltage Conversion ............................. 27

Page 3

2. INTRODUCTION

The SP2400 is a microprocessor-based dualchannel music controller with two built-in power amplifiers designed for use in a variety of installations requiring high performance, flexible features, and ease of use, such as retail stores, restaurants, bars, and theme venues. It provides two outputs that can be used for either stereo operation or two-zone coverage. Four stereo line-level inputs are provided on the rear panel, along with a paging mic input and two local mic/line inputs.

The program input sources can be independently assigned to each zone with the Input Select switches on the front panel. The boxes under the Input Select buttons on the front panel are sized to accept Brother P-Touch® labels. Each of the four inputs has an integral AGC circuit to automatically compensate for level differences between the input sources. Input 1 has a buffered line-level output that may be used for music-on-hold or other external applications. Program Priority can be assigned to Input 4 for use with a jukebox or alternative paging configurations. When a signal is detected at Input 4, it overrides any other program source assigned to that channel or zone.

Each of the four input sources can be operated in either stereo or mono mode. Each zone has a 3band EQ with sweepable mid for tuning the four program sources.

Each mic input has a 40 dB gain switch for use with either mic or line-level signals as well as a variable gain trim, phantom power switch, and a twoband EQ.

In addition, each zone has a variable for adjusting the trigger threshold of the paging mic's ducking circuit. The paging mic operates in both zones when voice-activated, but can be assigned to operate in either Zone A or Zone B, or over the entire system when manually operated with a switch connected to the

PAGING MIC CONTROL

Each zone is equipped with an input for an optional ambient microphone that can sample the ambient noise level in the room. The microprocessor then adjusts the paging mic gain in each zone to compensate for increased or decreased noise levels so that the paging mic is always audible above the background noise.

The Master Volume Up/Down buttons adjust the overall level that is routed to the connector (and the

AMP IN

PRE OUT

connector when the jumper is installed). Internal jumpers are provided for configuring the amplifier outputs for 70V, 100V, or 8-ohm operation.

VOX

control

connector.

Audio expansion connectors are provided on the rear panel for connecting multiple SP2400s, with shared audio via balanced busing. Each of the four program input signals are internally balanced and can be independently assigned to the balanced bus with internal assignment switches. The

REMOTE

switches on the rear panel are provided for

LOCAL/

selecting either local or bus operation for each input. The paging mic and paging control signal are also carried over the expansion bus.

A wired remote control is available that can be used to select input sources and adjust volume levels for each zone. Each amplifier can be programmed with a unique address, and two amplifiers with the same address can be controlled by a single remote when interconnected by means of the RS485 port. The remote control fits into a double-gang electrical box with a Decora®-style faceplate.

In addition, the RS485 port can interface with thirdparty control systems, or a PC-compatible computer loaded with the SPLinker software application for computer control of up to 32 zones in a system.

An internal option slot is provided on each of the two channels for installing an optional DSP card (SPDSP). It provides additional ambient noise sensing for the Program Inputs using the optional ambient microphone. As the noise level in the room increases, the gain on the selected source gradually increases to keep the music audible above the background noise.

An RS232 port (

COMM PORT

) is provided on the front panel for connecting a Palm™ Handheld or PC-compatible laptop computer for configuring the optional DSP card.

KEY FEATURES

• Two Channel Controller/Amplifier

• 4 Stereo, Line-Level Program Inputs

• 1 Page Mic Input

• 1 Local Mic Input per Channel

• Digital Cross-Fade between Input Sources

• 200 Watts/Channel at 70V and 100V

• 200 Watts/Channel at 8 Ohms

• Transformerless Amplifier Outputs

• Ambient Noise Sensing for Page Mic

• AGC for Music Sources

• 3-Band Sweepable EQ for Music Sources

• 2-Band EQ on each Mic Input

• Dual-Zone or Stereo Operation

• Each Zone Addressable (0-31)

• REMOTE connection for optional Remote Control

• RS485 Port for Third-Party Control Systems

SP2400 – 3

Page 4

FRONT PANEL FEATURES

REAR PANEL FEATURES

INPUTS

select buttons are used to choose the

program source for its respective zone. Only one source may be selected at a time. These are nonpriority inputs. However, Input 4 can become a Program Priority Input by setting the

ADDRESS

switch #7 UP. In this mode, when a

AMP

signal is present on Input 4, it automatically overrides whatever input source is selected for that zone. This is useful for jukeboxes or alternative paging configurations.

INPUT OFF

the

MIC/LINE INPUT

MASTER VOLUME

deselects Inputs 1-4 and activates

is used to adjust the overall

volume level for Inputs 1-4.

When

OFF

is selected, the Up/Down

VOLUME

buttons adjust the output level for the

MIC/LINE INPUT

. The Master Volume setting for

MASTER

Inputs 1-4 is retained in memory, and is recalled when a program source is selected.

The

Meter

indicates the level at the

PRE OUT

jack. Normally, it operates as a peak program meter (PPM). When adjusting the

MASTER VOLUME

level, the meter changes from level indication to level setting indication. After five seconds, the meters switch back to normal peak program metering.

There are three

OVERLOAD

LEDs indicate when one of the

amplifiers is beginning to current limit. The

STATUS

indicators. The

LED indicates when the SP2400 is operating.

The

COMM PORT

is used to connect to the

optional DSP card with a Palm™ Handheld or PCcompatible laptop computer for configuration.

Turning the

POWER

switch on activates the soft-

start circuit in the power supply. The soft-start circuit impedes in-rush current from the AC supply.

PROGRAM INPUTS 1-4

are stereo RCA

unbalanced inputs that accept line-level signals. The

LOCAL/REMOTE

switches on the rear panel select either the local program input signal connected here or the program signal on the expansion bus. See "Expansion In/Out" on page 18 for more information.

DIRECT OUTPUT

is a buffered line-level output

providing the stereo signal from the program source connected to the

DIRECT OUTPUT

INPUT 1

, regardless of whether

. Signal is always present at

INPUT 1

is selected as the source. This is useful for musicon-hold and other external applications.

PAGING MIC

is the connection for the paging microphone. There are two connectors available: a

3-pin XLR and a 3-pin Phoenix-type connector. In both cases, pin 1 is ground, pin 2 is signal high (+), and pin 3 is signal low (–).

CONTROL

is a Phoenix-type connector for

connecting external normally-open switches for remote paging. Three options are available: page to Zone A, page to Zone B, and page to the entire system (

GROUND

ALL CALL

). Connect the switches between

and the option of choice.

PHANTOM

applies phantom power (+24VDC) to

pins 2 and 3 of the microphone input. Move both switches to the down position to turn on phantom power.

The

GAIN +40 dB

DIP switch is used to set the

gain for use with either a mic-level or a line-level signal. Move both switches to the down position for mic-level signals, and up for line-level signals.

The

GAIN

variable control is used to trim the mic

preamp gain for the best signal-to-noise ratio.

The

LOW

variable control is a shelving filter that

provides 12 dB of boost and cut below 100Hz.

The

HIGH

variable control is a shelving filter that

provides 12 dB of boost and cut above 12kHz.

SP2400 – 4

OFF

MASTER VOLUME

ZONE B

3 0 3 6

9 15 30 55

ZONE A

INPUTS INPUTS

1234 1234

The

PAGING MIC VOX

variable control adjusts

the ducking threshold for the paging mic. Rotate the control clockwise to reduce the threshold. Rotate the control counterclockwise to increase the threshold.

MASTER VOLUME

3 0

OFF

3 6

9 15 30 55

SP2400 MUSIC CONTROLLER

OVERLOAD

STATUS

COMM PORT

POWER

Page 5

MIC/LINE INPUT

is provided to connect a local

microphone in each zone. This is a 3-pin Phoenixtype connector where pin 1 is ground, pin 2 is signal high (+), and pin 3 is signal low (–).

AMBIENT MIC

is a 3-pin Phoenix-type connector

used to connect the optional MT-3100 ambient microphone, one for each zone. This microphone is used to detect the ambient noise level in the room. The microprocessor uses this information to adjust the paging mic level above the ambient noise. The ambient mic also provides an input for the optional DSP card when it is installed.

is a 3-band equalizer with a sweepable

midrange that only affects Inputs 1-4.

LOW

is a shelving filter that provides 15 dB of boost and cut below 80Hz.

MID

is a peaking filter that provides 15 dB of boost and cut at the selected frequency between 250Hz and 8kHz.

HIGH

is a shelving filter

that provides 15 dB of boost and cut above 12kHz.

AMP ADDRESS

is used to assign a unique

address to each amplifier, as well as to enable or disable features. Switches 1-5 provide 32 separate addresses, switch 6 determines Master/Slave status, switch 7 enables Input 4 Priority, and switch 8 enables the optional ambient mic. Any two amplifiers assigned to the same address can be controlled by a single remote control when connected together via the RS485 ports.

RS485

is a 3-pin Phoenix-type connector in each

zone that provides an interface for the SPLinker Sound Palette Control PC application software for centralized computer control of up to 32 zones, as well as communication between SP2400s.

The RS485 interface is internally connected between the two amplifiers, so if both amplifiers are assigned the same zone with the

AMP ADDRESS

switch, the front panel controls and remote controls operate both sides, ideal for stereo operation.

REMOTE

is a 3-pin Phoenix-type connector for

the optional wired remote control (SP-41R), which provides Input Select and Master Volume control.

EXPANSION IN/OUT

consists of two parallel 25-

pin D-Sub connectors for connecting multiple

SP2400s together in a serial fashion. Any of the four program sources from any SP2400 can be used as the source for any of the zones in the system by assigning it to the expansion bus with the internal Bus Assign switches. This is a balanced bus for the four stereo input sources. In addition, the paging mic and paging control signal are also provided on the

EXPANSION

LOCAL/REMOTE

bus.

is a set of eight DIP switches

used to select the input source for the channel. Each program input has two switches, one to select the left signal source (odd-numbered switches) and one to select the right signal source (evennumbered switches). Move the switches up to select the local program source, and down to select the remote (external) program source from the

EXPANSION

STEREO/MONO

bus.

switches configure each input

source for either stereo or mono operation. If the SP2400 is being used in a stereo configuration, leave the switches up. If it’s being used in a zone configuration, move the switches down to combine the left and right channels for mono operation.

PRE OUT

is an unbalanced RCA jack that

provides a line-level signal from the preamplifier stage of the SP2400. This provides a method for inserting an external signal processor into the signal chain prior to the amplifier stage. The U-shaped jumper wire should remain installed between the

PRE OUT

a line-level signal. See

and

AMP IN

is an unbalanced RCA jack that accepts

jacks for normal operation.

PRE OUT

ZONE A/ZONE B OUTPUTS

above.

are 2-pin Phoenix-

type connectors that provide speaker-level signals.

The SP2400 is shipped with the outputs configured for 70-volt operation in U.S. versions, and 100-volt operation in European versions.

Internal jumpers are provided to configure the amplifier for 8 ohm systems as well. See page 14 for more information.

Connect the supplied AC linecord to the IEC AC

Socket. The AC line fuse is contained in the socket, behind the cover located at the bottom of the socket. Use replacement fuses only as indicated on the rear panel.

115V 60Hz FUSE 115/T 8A 220 WATTS 230V 50Hz FUSE 230/ T4A 220 WATTS

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

CAUTION: TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT STEREO LEFT

OUTPUT SUITABLE

FOR CLASS 2 WIRING

–

100/70V/8

AGB AGB

12345678

AMP ADDRESS

RS485 REMOTE

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

MIC/LINE INPUT B PROGRAM EQ

LOWGAIN

–

AMBIENT

+12–12U+12–12

MIC

SP2400

MUSIC CONTROLLER

GAIN +40dB

PHANTOM

HIGH

–

1234

PAGING

MIC VOX

PRE OUT

AMP IN

1234

12345678

1234

+15–15U+15–15

SERIAL NUMBER

LOCAL

REMOTE

250

STEREO

1234

MONO

MANUFACTURING DATE

HIGH 12kFREQMIDLOW 80Hz

3K400

+15–15

OUTPUT SUITABLE FOR CLASS 2 WIRING 100/70V/8

DIRECT

OUTPUT

1234

ZONE A

–

12345678

AMP ADDRESS RS485 REMOTE

PROGRAM INPUTS

AMBIENT

GROUND ALL CALL

PARALLEL

INPUTS

CONTROL

–

PHANTOM

HIGH

1234

GAIN +40dB

PAGING

MIC VOX

–

PRIORITY

MIC/LINE INPUT A PROGRAM EQ

LOWGAIN

–

+12–12U+12–12

MIC

PAGING MIC

PRE OUT

AMP IN

ZONE ZONE

1234

GAIN +40dBPHANTOM

+15–15U+15–15

250

HIGH

LOWGAIN

+12–12U+12–12

HIGH 12kFREQMIDLOW 80Hz

3K400

+15–15

SP2400 – 5

Page 6

3. Installation

Application Diagrams

Jukebox

SP2400 SWITCH SETTINGS

1234

DOWN

INPUT 4 PRIORITY OFF/ON

MASTER/SLAVE

ZONE A

12345678

LOCAL

1234

12345678

1234

REMOTE

INTERNAL BUS ASSIGN

SWITCHES

AMBIENT MIC OFF/ON

ZONE B

OFF ON

AMP ADDRESS

STEREO

1234

MONO

12345678ON12345678

Right Loudspeaker

Remote Control

230/115V 50/60 Hz FUSE 115/T8A

CAUTION:

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

+ 3

0 – 3 – 6 – 9 – 15 – 30 – 55

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

MIC/LINE INPUT B PROGRAM EQ

PHANTOM

HIGH

LOWGAIN

–

+12–12U+12–12

AMBIENT

MIC

Ambient Mic

Digital Satellite Service

To Telephone System

Music-On-Hold

SP2400

MUSIC CONTROLLER

PAGING

MIC

GAIN +40dB

VOX

–

1234

(MT-3100)

PRE OUT

AMP IN

12345678

+15–15U+15–15

SERIAL NUMBER

LOCAL

1234

REMOTE

STEREO

1234

MONO

250

MANUFACTURING DATE

HIGH 12kFREQMIDLOW 80Hz

3K400

+15–15

CD Player

DIRECT

OUTPUT

ZONE A

STEREO LEFT OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

PROGRAM INPUTS

AMBIENT

MIC

+ 3 0 – 3 – 6 – 9 – 15 – 30 – 55

Cassette or DAT Recorder

PAGING MIC

GROUND ALL CALL

PARALLEL

INPUTS

CONTROL

–

PRIORITY

MIC/LINE INPUT A PROGRAM EQ

LOWGAIN

–

PAGING

MIC VOX

GAIN +40dB

PHANTOM

HIGH

+12–12U+12–12

1234

PRE OUT

–

AMP IN

Left Loudspeaker

ZONE A ZONE B

GAIN +40dBPHANTOM

1234

+15–15U+15–15

Ambient Mic

(MT-3100)

Paging Mic

HIGH

LOWGAIN

+12–12U+12–12

HIGH 12kFREQMIDLOW 80Hz

3K400

250

+15–15

Remote Control

Note: This illustration demonstrates a typical stereo application using a single SP2400. Each channel is assigned the same address with the AMP ADDRESS switches (Zone A is Master and Zone B is Slave). This allows the front panel buttons, and connected remote controls, to control both sides. Input 4 Priority is turned on to allow the Jukebox to override the other Program Inputs, and the optional ambient microphones allow the SP2400 to adjust the paging microphone volume to changing ambient noise levels.

A: Typical Stereo Application

SP2400 – 6

Page 7

Jukebox

SP2400-1 SWITCH SETTINGS

1234

DOWN

INPUT 4 PRIORITY OFF/ON

MASTER/SLAVE

ZONE A

LOCAL

1234

12345678

1234

REMOTE

INTERNAL BUS ASSIGN

AMBIENT MIC OFF/ON

12345678

ZONE B

12345678

AMP ADDRESS

STEREO

1234

MONO

12345678ON12345678

SWITCHES

OFF ON

Ambient Mic

(MT-3100)

Remote Control

230/115V 50/60 Hz FUSE 115/T8A

CAUTION:

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

Local Mic

Zone B

70V Loudspeakers

Remote Control

Zone B

To Telephone System

SP2400

MUSIC CONTROLLER

GAIN +40dB

PHANTOM

HIGH

–

1234

Digital Satellite Service

Music-On-Hold

PAGING

MIC VOX

PRE OUT

AMP IN

+ 3

– 3 – 6 – 9 – 15 – 30 – 55

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

MIC/LINE INPUT B PROGRAM EQ

LOWGAIN

–

+12–12U+12–12

AMBIENT

MIC

Zone D

AUDIO I/O

+ 3

– 3 – 6

– 9 – 15 – 30 – 55

+15–15U+15–15

SERIAL NUMBER

LOCAL

1234

12345678

1234

REMOTE

MANUFACTURING DATE

STEREO

1234

MONO

3K400

250

HIGH 12kFREQMIDLOW 80Hz

+15–15

CD Player

DIRECT

L L

OUTPUT

ZONE A

STEREO LEFT

OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

Remote Control

CD Player

Zone A

PROGRAM INPUTS

AMBIENT

MIC

+ 3 0

– 3 – 6 – 9 – 15 – 30 – 55

Cassette or DAT Recorder

PAGING MIC

GROUND ALL CALL

PARALLEL

INPUTS

CONTROL

–

PRIORITY

LOWGAIN

–

PHANTOM

HIGH

PAGING

MIC VOX

GAIN +40dB

PRE OUT

–

1234

AMP IN

MIC/LINE INPUT A PROGRAM EQ

+12–12U+12–12

Cassette or DAT Recorder

A B ALL

ZONE A ZONE B

GAIN +40dBPHANTOM

1234

+15–15U+15–15

Zone A

70V Loudspeakers

Paging Mic

LOWGAIN

+12–12U+12–12

3K400

250

Ambient Mic

(MT-3100)

Paging Mic

Control Switch

HIGH

HIGH 12kFREQMIDLOW 80Hz

+15–15

Local Mic

SP2400-2 SWITCH SETTINGS

1234

DOWN

INPUT 4 PRIORITY OFF/ON

MASTER/SLAVE

ZONE A

LOCAL

1234

12345678

1234

REMOTE

INTERNAL BUS ASSIGN

AMBIENT MIC OFF/ON

12345678

ZONE B

12345678

AMP ADDRESS

STEREO

1234

MONO

12345678ON12345678

SWITCHES

OFF ON

Ambient Mic

(MT-3100)

230/115V 50/60 Hz FUSE 115/T8A

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

CAUTION:

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

–

AMBIENT

MIC

Local Mic

Zone D

70V Loudspeakers

SP2400

MUSIC CONTROLLER

12345678

MIC/LINE INPUT B PROGRAM EQ

LOWGAIN

+12–12U+12–12

PHANTOM

HIGH

PAGING

MIC

GAIN +40dB

VOX

PRE OUT

–

1234

+15–15U+15–15

AMP IN

SERIAL NUMBER

LOCAL

1234

REMOTE

MANUFACTURING DATE

STEREO

1234

MONO

3K400

250

HIGH 12kFREQMIDLOW 80Hz

+15–15

DIRECT

L L

OUTPUT

ZONE A

STEREO LEFT

OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

Remote Control

Zone C

PROGRAM INPUTS

PRIORITY

MIC/LINE INPUT A PROGRAM EQ

GAIN +40dB

PHANTOM

HIGH

LOWGAIN

–

1234

+12–12U+12–12

AMBIENT

MIC

+ 3 0

– 3 – 6 – 9 – 15 – 30 – 55

PAGING MIC

ZONE A

GROUND

ZONE B

ALL CALL

PARALLEL

INPUTS

–

CONTROL

–

PAGING

MIC VOX

1234

PRE OUT

AMP IN

70V Loudspeakers

GAIN +40dBPHANTOM

+15–15U+15–15

Zone C

Note: This application uses the Expansion Bus to share audio sources between two SP2400s. The Digital Satellite Service (Input 1) and the Jukebox (Input 4) connected to Unit 1 are assigned to the Expansion Bus with the internal Bus Assign switches (on the Input Board). On Unit 2, Inputs 1 and 4 are set to the REMOTE setting, and Inputs 2 and 3 are set to the LOCAL setting.

250

HIGH

LOWGAIN

+12–12U+12–12

HIGH 12kFREQMIDLOW 80Hz

3K400

Ambient Mic

(MT-3100)

+15–15

Local Mic

B: Multiple SP2400s—Multiple Zones—Shared Sources

SP2400 – 7

Page 8

Digital Satellite Service

CD Player

Cassette or DAT Recorder

Jukebox

Zone A

Remote Control

+ 3

– 3 – 6 – 9 – 15 – 30 – 55

SP2400-1 SWITCH SETTINGS

1234

DOWN

ZONE A

AMBIENT MIC OFF/ON

INPUT 4 PRIORITY OFF/ON

MASTER/SLAVE

12345678

AMP ADDRESS

LOCAL

1234

12345678

1234

REMOTE

INTERNAL BUS ASSIGN

SWITCHES

OFF ON

ZONE B

OFF ON

STEREO

1234

MONO

12345678ON12345678

SP2400-2 SWITCH SETTINGS

1234

DOWN

ZONE A

AMBIENT MIC OFF/ON

INPUT 4 PRIORITY OFF/ON

MASTER/SLAVE

12345678

AMP ADDRESS

LOCAL

1234

12345678

1234

REMOTE

ZONE B

OFF ON

STEREO

1234

MONO

230/115V 50/60 Hz FUSE 115/T8A

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

CAUTION:

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT

OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

230/115V 50/60 Hz FUSE 115/T8A

CAUTION:

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

ZONE B

STEREO RIGHT

OUTPUT

100/70V/8

–

12345678

AMP ADDRESS RS485 REMOTE

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

–

AMBIENT

MIC

Zone B

70V Loudspeakers

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

EXPANSION IN EXPANSION OUT

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

–

AMBIENT

MIC

Zone D

70V Loudspeakers

SP2400

MUSIC CONTROLLER

MIC/LINE INPUT B PROGRAM EQ

LOWGAIN

+12–12U+12–12

MIC/LINE INPUT B PROGRAM EQ

LOWGAIN

+12–12U+12–12

GAIN +40dB

PHANTOM

HIGH

–

1234

SP2400

MUSIC CONTROLLER

GAIN +40dB

PHANTOM

HIGH

–

1234

PAGING

MIC VOX

PRE OUT

+15–15U+15–15

AMP IN

PAGING

MIC VOX

PRE OUT

+15–15U+15–15

AMP IN

SERIAL NUMBER

LOCAL

1234

12345678

1234

REMOTE

SERIAL NUMBER

LOCAL

1234

12345678

1234

REMOTE

STEREO

1234

MONO

250

STEREO

1234

MONO

250

MANUFACTURING DATE

HIGH 12kFREQMIDLOW 80Hz

3K400

MANUFACTURING DATE

HIGH 12kFREQMIDLOW 80Hz

3K400

ZONE A

STEREO LEFT

OUTPUT

100/70V/8

+15–15

12345678

AMP ADDRESS RS485 REMOTE

ZONE A

STEREO LEFT

OUTPUT

100/70V/8

+15–15

12345678

AMP ADDRESS RS485 REMOTE

Paging Mic

Zone A

Local Mic

Remote Control

+ 3

– 3 – 6 – 9 – 15 – 30 – 55

Zone C

Remote Control

+ 3

– 3 – 6 – 9 – 15 – 30 – 55

DIRECT

PROGRAM INPUTS

L L

OUTPUT

–

DIRECT

L L

OUTPUT

–

PROGRAM INPUTS

PRIORITY

MIC/LINE INPUT A PROGRAM EQ

PHANTOM

HIGH

LOWGAIN

–

+12–12U+12–12

AMBIENT

MIC

PRIORITY

MIC/LINE INPUT A PROGRAM EQ

PHANTOM

HIGH

LOWGAIN

–

+12–12U+12–12

AMBIENT

MIC

GROUND ALL CALL

PARALLEL

INPUTS

–

PAGING

MIC

VOX

GAIN +40dB

–

1234

Zone A

70V Loudspeakers

GROUND ALL CALL

PARALLEL

INPUTS

–

PAGING

MIC

VOX

GAIN +40dB

–

1234

Zone C

70V Loudspeakers

CONTROL

PRE OUT

AMP IN

PRE OUT

AMP IN

PAGING MIC

ZONE

GAIN +40dBPHANTOM

HIGH

LOWGAIN

1234

+12–12U+12–12

HIGH 12kFREQMIDLOW 80Hz

+15–15U+15–15

ZONE

GAIN +40dBPHANTOM

1234

+15–15U+15–15

3K400

250

+15–15

HIGH

LOWGAIN

+12–12U+12–12

HIGH 12kFREQMIDLOW 80Hz

3K400

250

+15–15

12345678ON12345678

INTERNAL BUS ASSIGN

SWITCHES

Note: This application makes the Local Mic/Line Input available to both Zones A and C. When the OFF button is pressed, the Local Mic is heard in both zones. When Inputs 1-4 are pressed, the selected input is heard in both zones. Zones A and C are assigned the same AMP ADDRESS, and connecting the RS485 terminals between the two zones allows the front panel buttons and the remote controls to affect both zones.

C: Expansion with Local Mic

SP2400 – 8

+ 3

– 3 – 6

– 9 – 15 – 30 – 55

Zone C

Remote Control

Page 9

CAUTION:

230/115V 50/60 Hz FUSE 115/T8A

TO REDUCE THE RISK OF FIRE

REPLACE WITH SAME TYPE FUSE AND RATING

12345678

1234

–

PHANTOM

GAIN +40dB

MIC/LINE INPUT B PROGRAM EQ

1234

12345678

–

PHANTOM

GAIN +40dB

MIC/LINE INPUT A PROGRAM EQ

1234

PARALLEL

INPUTS

CONTROL

ZONE AZONE

GROUND

ALL CALL

GAIN +40dBPHANTOM

DIRECT

OUTPUT

PROGRAM INPUTS

PRIORITY

SP2400

MUSIC CONTROLLER

HIGH

+12–12

LOWGAIN

SERIAL NUMBER

MANUFACTURING DATE

HIGH 12kFREQMIDLOW 80Hz

+15–15

3K400

250

HIGH

+12–12

LOWGAIN

AMP ADDRESS RS485 REMOTE

AMBIENT

MIC

VOX

AMP IN

PRE OUT

HIGH 12kFREQMIDLOW 80Hz

+15–15

3K400

250

HIGH

+12–12

LOWGAIN

AMP IN

PRE OUT

PAGING MIC

EXPANSION IN EXPANSION OUT

THE FOLLOWING ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC

AMP ADDRESS RS485 REMOTE

AMBIENT

MIC

PAGING

MIC

VOX

PAGING

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC. • WOODINVILLE • WA • MADE IN USA • FABRIQUE AU USA

ZONE B

–

OUTPUT

100/70V/8

STEREO RIGHT

1234

12345678

MONO

STEREO

LOCAL

1234

REMOTE

1234

ZONE A

–

OUTPUT

100/70V/8

STEREO LEFT

REMOTE BUS

TRIM

BUS A

+20-20

TRIM

RECORD

OUTPUTS

LOGIC I/O

TRIM

BUS B

+20-20

TRIM

060

–

SERIAL NUMBER

MANUFACTURING DATE

COMM PORT

DIRECT OUTPUTS

12345678

POWER

INPUT

28V DC,

3A MAX

23456781

–

MIC

LINE

LINELINELINE

MIC

LINE

MIC

LINE

MIC

LINE

MIC

LINE

MIC

LINE

MIC

LINE

MIC

LINE

MIC

DX8 DIGITAL MIXER

30dB+30dB

060

30dB+30dB

060

30dB+30dB

060

30dB+30dB

060

30dB+30dB

060

30dB+30dB

060

30dB+30dB

060

30dB+30dB

PHANTOM POWER

48V DC

12 1 +5V

11G1

–

INPUTS

OUTPUTS

100

–

240V , 50/60Hz, 1A MAX

THE FOLLOWING ARE TRADEMARKS OR REGISTERED

TRADEMARKS OF MACKIE DESIGNS INC "MACKIE",

"MACKIE INDUSTRIAL", AND THE "RUNNING MAN" FIGURE

CONCEIVED, DESIGNED, AND MANUFACTURED

BY MACKIE DESIGNS INC WOODINVILLE • WA • USA

LISTED COMMERCIAL

AUDIO EQUIPMENT

9Z39

CD Player

Zone A

Cassette Player

Zone B

70V Loudspeakers

Zone A

70V Loudspeakers

Zone A OutZone B Out

Laptop with

PowerPoint

Presentation

Audio

Remote Controls

– 3

– 6

– 8

–10

– 5

– 10

– 15

– 20

– 25

– 30

– 40

Tuner

Zone B

Mic

Zone A

Mic

Global Background

Music via Expansion I/O

to Input 1

– 3

– 6

– 8

–10

– 5 – 10

– 15

– 20

– 25

– 30

– 40

CD 5-Disc Changer

102.5

ZONE A/B

COMBINED

Zone B

Divider

SP2400 SWITCH SETTINGS

12345678

ZONE A

KEY

AMBIENT MIC OFF/ON

OFF ON

DOWN

12345678

AMP ADDRESS

ZONE B

OFF ON

INPUT 4 PRIORITY OFF/ON

MASTER/SLAVE

12345678

1234

12345678

MONO

STEREO

LOCAL

1234

REMOTE

1234

INTERNAL BUS ASSIGN

SWITCHES

1234

Note: This application provides independent source selection for each zone, or common input source selection for both zones (room combining). Both DX8 Selection Remote Controls are used to select Presets 1 and 2.

For example, Preset 1 might route the CD Player and the Zone A microphone to Zone A, and the Cassette Player and the Zone B microphone to Zone B, to be used when the divider is in place between the two zones. Preset 2 might route both microphones and the audio signal from the laptop to both Zones A and B, to be used when the divider is removed between the two zones.

Both Zones on the SP2400 are assigned the same AMP ADDRESS, so when “OFF” is selected on the SP2400, the DX8 signal at the Mic/Line Input is routed to the SP2400 outputs. The local input sources (Tuner and CD 5-Disc Changer) or the Global Background Music via the Expansion I/O can be routed to the SP2400 outputs by selecting 1, 2, or 4 on the SP2400 front panel.

D: Room Combining—Zones

SP2400 – 9

Page 10

Application Diagrams

A: Typical Stereo Application

This diagram depicts a typical setup, using the SP2400 in a stereo application. A Digital Satellite Service (DSS) is connected to Input 1, which also serves as the music-on-hold for the telephone system. A CD player and cassette deck are connected to Inputs 2 and 3 for general purpose music playback. A jukebox is connected to Input 4, which is configured for priority playback via switch #7.

Both sides are assigned the same with the left channel assigned Master status and the right channel assigned Slave status via

ADDRESS

buttons and both remote controls to operate both sides simultaneously.

An ambient mic is connected to each side to provide paging level compensation for varying ambient noise levels in the room. Both amplifiers have been configured for 8-ohm operation.

switch #6. This allows the front panel

AMP ADDRESS

AMP

B: Multiple SP2400s: Multiple Zones

In this example, two SP2400s are used in a system with four separate zones configured for 70V operation (default configuration for U.S. versions). Four program sources are connected to Unit 1. Of these, only the DSS and Jukebox signals are shared with Unit 2 by means of the Expansion Bus (Inputs 1 and 4 are assigned to the Expansion Bus via the internal Bus Assign switches). Both units have sources connected to Inputs 2 and 3 that are exclusive and not shared between units. Each zone has a different remote control exclusively operates its own zone.

The Paging Mic can be manually operated with the Paging Mic Control Switch, and the Paging Mic and

ALL CALL

via the Expansion bus.

Each ambient mic and local mic operates independently in their own zones.

AMP ADDRESS

control signal is transferred to Unit 2

assigned, and each

C: Expansion with Local Mic

This example shows how to share the Local Mic/ Line input with another zone, along with the remote Expansion Bus signals.

Zone A and Zone C are assigned the same

ADDRESS

Zone C assigned Slave status via switch #6. This allows the front panel buttons for both zones, and all the remote controls, to operate both zones simultaneously.

When an input is selected, it is heard in both zones because Zone A is set to

, with Zone A assigned Master status and

AMP ADDRESS

LOCAL

input

AMP

source, and Zone C is set to over the Expansion Bus. When Local Mic connected to Zone A is heard in both zones because the connected to the

Zones B and D can select their own input

sources independently.

PRE OUT

MIC/LINE

REMOTE

from Zone A is

input on Zone C.

input source

OFF

is pressed, the

D: Room Combining—Zones

In this example, a dividing wall can be extended

to divide the room into two. The Mackie Industrial DX8 is used to route independent source selections to each zone (Preset 1 on the Remote Controls), or common input source selections for both zones (Preset 2 on the Remote Controls).

Tips on Installing and Using the SP2400—Plan Ahead!

The key to any successful installation is planning your system well in advance. Know which components are going to be used in the system, their locations, and how they will interface with each other. Plan the wire routing and AC power requirements.

Here are some steps to follow to help insure a smooth installation of the SP2400:

How many zones require coverage in the system?

you need in the system.

zone (mono) configuration?

determine the number of SP2400s you need. One SP2400 will cover two zones in mono or one zone

This will determine how many SP2400s

Is the SP2400 going to be used in a stereo or

This will also

SP2400 – 10

Page 11

in stereo. The answer to this question will also affect the location of the speakers in the room and the settings for the the input sources.

How many program sources are going to be

used?

If the number of program sources is four or less, they can be centralized at one SP2400 and distributed via the Expansion Bus. If there are more than four program sources, they must be distributed among the SP2400s. Determine the number and location of the program sources that are going to be used.

Determine which program sources are going to be used for each zone, and set the and internal

BUS ASSIGN

STEREO/MONO

LOCAL/REMOTE

switches appropriately.

switches for

Mic and Mic/Line Inputs. Make sure the switch is set to the down position as well (+40).

Note: The Paging Mic has priority over the system, including Input 4.

Is there a manual switch for paging?

three switches can be connected to the SP2400

PAGING MIC CONTROL

paging microphone. Otherwise, the paging mic is voice-activated. Adjust the described on page 19.

to manually engage the

VOX

control as

GAIN +40dB

Up to

Connections

CAUTION: Never assign more than one program source to the same channel on the Expansion Bus.

If there is a requirement for music-on-hold, use Input 1 for the continuous music source (i.e., satellite feed, prerecorded background music, multidisc CD player). Then use the jacks to route the signal to the telephone system.

If there is a jukebox, use Input 4 in Program Priority mode (set the to activate). When a signal appears at Input 4 it overrides the selected Input source.

Using a chart similar to the one below can be very helpful in organizing the various components of the system:

Source

Zone

SAT

AMP ADDRESS

Cassette

DIRECT OUTPUT

Tuner

Jukebox

switch #7 UP

AXXXXX

XXXXX

B C D E

Is there a paging microphone? Is there a

XX X

XXX XXX X

XX X

requirement for a local microphone for a guest speaker?

are going to be located. Avoid placing a microphone near a speaker, to increase gain before feedback. If the mics require phantom power, set the power switches to the down position for the Paging

You must decide where the microphones

PHANTOM

Connecting the Program Sources

All four Program Inputs use unbalanced RCA connectors. They accept line-level signals (–10 dBV). Each of the Program Inputs is equipped with an AGC circuit instead of input trim controls. These circuits automatically adjust the gain for the best signal-to-noise ratio according to the strength of the input signal. It also ensures that the relative volume level remains the same when switching between input sources.

Use high-quality, two-conductor shielded cable to make these connections.

Connecting the Microphones

If using the XLR input for the paging microphone, wire it per AES standard where pin 1 is ground (shield), pin 2 is signal high (+), and pin 3 is signal low (–). If using the Phoenix-type connector, strip the wire back about 1/4" inch, insert the wire as far as it will go into the appropriate hole in the connector, and tighten down the screw with a small slot-head screwdriver. It is recommended that you use 20 or 22 gauge wire with the Phoenix-type connectors, where pin 1 (the left-most pin) is ground (shield), pin 2 is signal high (+), and pin 3 is signal low (–).

The

MIC/LINE INPUT A and B

microphone. This is a Phoenix-type connector, and is wired as described in the previous paragraph for the paging microphone.

All microphone inputs are equipped with a pad switch for use with line-level signals. When connecting a line-level signal to these inputs, make sure the GAIN +40dB switches are in the up position.

are for a local

Connecting the Speakers

The speaker output connectors are twoconductor Phoenix-type, with a position-locking mechanism. Use 16 or 18 gauge wire for connecting the amplifier outputs to the speakers. If

SP2400 – 11

Page 12

the amplifier output is configured for 8-ohm operation, connect the speaker output directly to an 8-ohm load. The amplifier will deliver up to 250 watts to each speaker. If the amplifier is configured for either 70V or 100V operation, connect the speaker output directly to the distributed system. No output transformer is required. Make sure that the taps on the speakers add up to 200 watts or less per amplifier for 70V or 100V systems.

Connecting the Expansion Bus

These are 25-pin D-Sub connectors (DB25F). The two connectors are wired in parallel, so it doesn’t matter which one you use as an input or output. The signals on the balanced so they can be transmitted down long lines. The limiting factor is the capacitance of the cable, which causes the higher frequencies to rolloff as the capacitance increases (see chart below). The chart indicates the lengths of cable at which the high-frequencies are 1 dB down and 3 dB, using cable rated at 20pf/ft and 30pf/ft.

Use shielded twisted pairs for the cable to ensure the best rejection of external noise (EMI and RFI).

Maximum Feet of Cable vs. High-Frequency Roll-Off

20K

16K

12.5k

10K

6.3K

–1 dB point –3 dB point

3.15K

High-Frequency Rolloff

1.6K

100

EXPANSION IN/OUT

Expansion Bus Output Impedance = 220Ω Expansion Bus Input Impedance = 200KΩ

200

300

400

500

600

700

800

20pf/ft 30pf/ft

Feet of Cable (24AWG)

900

1000

1100

1200

1300

are

EXPANSION

1400

1500

1600

1700

1800

1900

2000

EXPANSION I/O

–15VDC (w/J2 INSTALLED)

PAGING MIC (+)

INPUT 4 RIGHT (+)

INPUT 4 LEFT (+)

INPUT 3 RIGHT (–)

INPUT 3 LEFT (–)

GROUND

INPUT 2 RIGHT (+)

INPUT 2 LEFT (+)

INPUT 1 RIGHT (–)

INPUT 1 LEFT (–)

N/C

+15VDC (w/J3 INSTALLED) PAGING MIC CONTROL PAGING MIC (–) INPUT 4 RIGHT (–) INPUT 4 LEFT (–) GROUND INPUT 3 RIGHT (+) INPUT 3 LEFT (+) INPUT 2 RIGHT (–) INPUT 2 LEFT (–) GROUND INPUT 1 RIGHT (+) INPUT 1 LEFT (+)

Signal Pin No.

Input 1 Left (+) Pin 1 Input 1 Left (–) Pin 14 Input 1 Right (+) Pin 2 Input 1 Right (–) Pin 15 Ground Pin 3 Input 2 Left (+) Pin 16 Input 2 Left (–) Pin 4 Input 2 Right (+) Pin 17 Input 2 Right (–) Pin 5 Ground Pin 18 Input 3 Left (+) Pin 6 Input 3 Left (–) Pin 19 Input 3 Right (+) Pin 7 Input 3 Right (–) Pin 20 Ground Pin 8 Input 4 Left (+) Pin 21 Input 4 Left (–) Pin 9 Input 4 Right (+) Pin 22 Input 4 Right (–) Pin 10 Paging Mic (+) Pin 23 Paging Mic (–) Pin 11 N/C Pin 24 Paging Mic Control Pin 12 –15VDC (w/J2 Installed) +15VDC (w/J3 Installed)

Pin 25 Pin 13

Note: There is a 0.5 amp limit on the ±15VDC supply.

Expansion Bus Connection Chart

Distance Chart for SP2400 Expansion Bus Cable

For local interconnection of the Expansion Bus, the use of standard computer cable with an overall shield is acceptable, such as Belkin Pro Series 25Conductor Straight-Through Cable Assembly (Part Number F3D111-06) or equivalent. Ensure that the cable is wired straight-through and terminated to DB25M connectors on each end.

Note: The use of ribbon cable is permissible for these connections, only where the total length of each cable is 12" (30cm) or less.

SP2400 – 12

Connecting the REMOTE Bus

This is a 3-pin Phoenix-type connector specifically for connecting the optional remote control. Use a high-quality three-conductor shielded cable to make this connection, such as Belden 8451, 9451, or equivalent. The lower the nominal capacitance of the wire, the more distance you can have between the remote control and the SP2400 before suffering transmission losses.

Strip the wire back about 1/4 inch, insert the wire as far as it will go into the appropriate hole in the supplied Phoenix-type connector, and tighten down the screw with a small slot-head screwdriver. It is recommended that you use 18 to 24 gauge wire for the remote control connections, depending on the distance between the SP2400 and the remote control.

Page 13

The

REMOTE

connector is wired as follows: Pin 1 = Ground (Shield) Pin 2 = Data + (with +24V DC power) Pin 3 = Data – (with +24V DC power)

Note: See the instructions with the remote

control for more information.

Connecting the RS485 Serial Port

This is a 3-pin Phoenix-type connector that

follows standard RS485 protocol. Select either a data-grade shielded twisted pair cable or a standard 3-conductor microphone cable for this connection.

The

RS485

port is wired as follows: Pin 1 = A (non-inverting I/O) Pin 2 = G (Ground) Pin 3 = B (inverting I/O)

The SPLinker Sound Palette Control PC

application uses the between a computer and the SP2400. Connect the PC RS485 port to the first SP2400, and then interconnect up to 16 SP2400s in the system using their

RS485

connections.

Note: It may be necessary to install an RS485

interface card in the PC, or to use an RS232 to RS485 converter.

Since the two

connected in the SP2400, one can be used as an input from the previous SP2400, and the other as an output to the next SP2400.

Up to 16 SP2400s can be connected together

with 32 independent zones (each zone assigned a unique

AMP ADDRESS

stereo operation (each SP2400 assigned the same

AMP ADDRESS

assigned Master and the other side Slave).

RS485

serial port to connect

RS485

ports are internally

), or up to 32 SP2400s in

on both sides, with one side

Internal Settings

Note: There are several settings that can be changed inside the SP2400. These settings should be made prior to installing the SP2400.

CAUTION: These servicing instructions are for use by qualified personnel only. To

avoid electric shock, do not perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.

Make sure the power is off and the power cord disconnected

access to the inside of the SP2400.

Bus Assign

There are two 8-position DIP switches on the Input Board that allow you to assign a Program Input source to the balanced expansion bus. Each Program Input Source has four corresponding switches: Left (+), Left (–), Right (+), and Right (–). Typically, you would move all four switches either down (off) or up (assign to expansion bus).

from more than one SP2400 onto the same bus may damage the unit.

before removing the top cover to gain

CAUTION: Never assign more than one program source to the same channel on the Expansion Bus. Assigning sources

SP2400 INPUT BOARD

Laptop with

SPLinker PC Application

RS485

To Next SP2400

RS485

S3 S4 J8 J9 J10 J11 J12

REAR PANEL

Signal Switch No.

Input 1 Left (+) S1-1 Input 1 Left (–) S1-2 Input 1 Right (+) S1-3 Input 1 Right (–) S1-4 Input 2 Left (+) S1-5 Input 2 Left (–) S1-6 Input 2 Right (+) S1-7 Input 2 Right (–) S1-8

Bus Assign Switch Chart

12345678ON12345678

Signal Switch No.

Input 3 Left (+) S2-1 Input 3 Left (–) S2-2 Input 3 Right (+) S2-3 Input 3 Right (–) S2-4 Input 4 Left (+) S2-5 Input 4 Left (–) S2-6 Input 4 Right (+) S2-7 Input 4 Right (–) S2-8

SP2400 – 13

Page 14

EQ Bypass

Jumper J6, located on each Filter Board, allows you to bypass the 3-band EQ for the four Program Inputs.

configuration than the default settings. Refer to the following illustration for the locations of the jumpers.

Note: Each amplifier board must be configured

separately.

Jumper pins 1 and 2 to bypass the EQ. Jumper pins 2 and 3 to engage the EQ (default).

Note: The top Input Board must be removed in order to access Jumper J6 on the Filter Board.

D22

C40

C23

U25

SP2400 FILTER BOARD

C54

EQ ENGAGE

EQ BYPASS

3 2

R96

R121 R97

R143

R145

C94 C95 C96

C92C93

R146

C91

L10

C89

R132

R142

J9J8J7

R147

R134

R137

R133

R136

R149R148

EQ Bypass Internal Jumper

70V/100V/8 Ohm Settings

There are several jumpers on the Amplifier Boards that are used to configure the amplifiers for use with a 70V distributed system, a 100V distributed system, or an 8-ohm load.

The SP2400 is shipped with the jumpers set for 70 Volt operation in U.S. versions, and 100 Volt operation in European versions.

change these jumpers only if you require a different

You will need to

On the Amplifier Boards

Jumper pins 1 and 2 for 8-ohm operation Jumper pins 2 and 3 for 70V or 100V operation

Jumper pins 1 and 2 for 100V or 8Ω/250W operation Jumper pins 2 and 3 for 70V or 8Ω/150W operation

Jumper pins 1 and 2 for 70V or 8Ω/150W operation Jumper pins 2 and 3 for 100V or 8Ω/250W operation

Jumper pins 1 and 2 for 70V or 8 ohm operation Jumper pins 2 and 3 for 100V operation

Jumper pins 1 and 2 for 8-ohm operation Jumper pins 2 and 3 for 70V or 100V operation

J10

Jumper pins 1 and 2 for 8-ohm operation Jumper pins 2 and 3 for 70V or 100V operation

J11

Jumper pins 1 and 2 for 8-ohm operation Jumper pins 2 and 3 for 70V or 100V operation

J15

Jumper pins 1 and 2 for 8-ohm operation Jumper pins 2 and 3 for 70V or 100V operation

SP2400 – 14

SP2400 AMP BOARD

C15

JP1

R110 R67

J11 J15 J10

70V/100V

8Ω

100V or 8Ω/250W

70V or 8Ω/150W

Amplifier Configuration Internal Jumpers

C1 C2 C3 C4 C5 C6

JP2

C8 C10

100V

70V or 8Ω

C17 C18

100V or 8Ω/250W

70V or 8Ω/150W

R68

3 2

C62

C11

70V/100V

8Ω

70V/100V

8Ω

Page 15

AC Power Considerations

Each SP2400 draws an average of 6 amps of AC line current (@ 120VAC) when fully loaded and playing music with a relatively high crest factor.

Voltage Conversion

The SP2400 can be configured to operate at 115V AC or 230V AC. See Appendix C for instructions on how to change the operating voltage configuration.

Thermal Considerations

IMPORTANT: The SP2400 is convection cooled rather than fan cooled. This design

was chosen to avoid the requirement for periodic air filter maintenance, and to keep the insides of the SP2400 clean in dirty environments (rather than blowing dirty, smoky air into it). Heat is drawn away from the amplifiers by the heatsinks and radiated through the cooling vents in the top cover. When installing the SP2400, be sure to allow sufficient air space around the top and rear of the amplifier to allow adequate cooling for the heatsinks. If installing in a rack,

rack space above and below the SP2400 for a vent, and at least 6 inches behind the chassis to allow proper ventilation.

leave at least one

If installing three or more SP2400s in a rack, use a fan in the rack to move cool air in and warm air out of the rack's enclosure. It may be necessary to provide a cool air intake fan at the bottom of the rack, and a warm air exhaust fan at the top (see Figure below).

Note: Though it is not required, it is recommended that a warm air exhaust fan be used when two SP2400s are installed in the same rack.

If the amplifier should overheat, a thermal switch is activated that disengages the speaker outputs, allowing the heatsinks to cool down. The

OVERLOAD

indicator on the front panel will also light to show that a protection circuit has been activated. Once the amplifier has cooled to a safe operating temperature, the thermal switch resets and reactivates the speaker outputs. If this should occur, identify the cause of the problem and take corrective action (i.e., provide better ventilation, install a fan in the rack to move more air, make sure the amplifier is not overloaded with too low of a load impedance).

2U Exhaust Fan Panel

1U Vent Panel

2U Vent Panel

(or Optional Intake Fan)

Cool Air

Intake

Cool Air

Intake

Cool Air

Intake

Cool Air

Intake

Cool Air

Intake

Hot Air

Exhaust

SP2400 – 15

Page 16

4. Operation

SP2400 Quick Start

This isn’t a substitute for reading the entire instruction manual, which is the only way to fully understand how the SP2400 works. However, the Quick Start provides a quick overview so you can get the SP2400 set up and working right away.

Make sure the power switch is off while setting up and making connections to the SP2400.

External Switch Settings

• The Paging Mic and the Local Mic have +24 VDC

PHANTOM

down to activate the phantom power if you are using condenser microphones.

• The Paging Mic and Local Mic also have

+40dB

position when microphones are connected to these inputs.

• If you plan on connecting two or more SP2400s together in a system with the bus, use the either the local Program Input source (switches up) or a remote program source from the

IN/OUT

switches (1, 3, 5, 7) select the left inputs, and the even-numbered switches (2, 4, 6, 8) select the right inputs.

• If you’re using the SP2400 in a stereo configuration, move the a zone configuration planned, leave the

MONO

and right channels into a mono signal.

• For stereo operation, assign the same

ADDRESS ADDRESS

one channel and to the Slave position on the other channel). The front panel and remote control panels will operate both amplifiers when they are assigned to the same select Program Input 1 with the Zone A control, Program Input 1 is also selected in Zone B, routing the Program Input 1 left signal to the Zone A (Stereo Left) amplifier, and the Program Input 1 right signal to the Zone B (Stereo Right) amplifier.

• For zone operation, assign different

ADDRESS

panel and remote control panels will operate independently for each amplifier and zone.

power switches. Move the switches

GAIN

switches. Leave the switches in the down

EXPANSION IN/OUT

LOCAL/REMOTE

bus (switches down). The odd-numbered

STEREO/MONO

switches down (default) to combine the left

setting to both amplifiers (set the DIP switch #6 to the Master position on

AMP ADDRESS

settings to each amplifier. The front

switches to select

EXPANSION

switches up. If you have

STEREO/

AMP

. For example, if you

AMP

Internal Switch and Jumper Settings

Refer to “Internal Settings” on page 13 for more

information.

• Bus Assign switches are used to assign a program input source to the balanced expansion bus. There are four switches for each program input source: Left (+), Left (–), Right (+), and Right (–).

CAUTION : Never assign more than one program source to each of the four expansion bus outputs.

• EQ Bypass allows you to bypass the 3-band EQ, which is in the Input 1-4 signal path. EQ engaged is the default setting.

• The amplifier can be configured for 8-ohm, 70V (default), or 100V operation via eight jumpers on the amplifier board.

Program Inputs

Connect any stereo line-level signal source to the Program Inputs 1-4. If you have a music-on-hold requirement, connect a continuous music source to

INPUT 1

can feed the signal connected to telephone system.

(e.g., a jukebox), connect it to

AMP ADDRESS

priority.

for now (1K for the adjusted later, if necessary.

. The

DIRECT OUTPUT

If you have a need for a priority Program Input

switch #7 UP to enable

Set the 3-band EQ controls to the “U” position

FREQ

jacks next to

INPUT 1

INPUT 4

control). These can be

INPUT 1

to the

. Move the

INPUT 4

Paging Mic Input

Connect a microphone to the Use either the XLR connector, or the supplied Phoenix-type connector. Set the

GAIN +40dB

Adjust the the meter level is at the “0” mark. Set the control so the meter indication is near the “0” mark when speaking at an average level into the microphone. See “Setting The Vox Threshold” on page 19 for more information.

Set the 2-band EQ ( position. This can be adjusted later, if necessary.

switches to their appropriate positions.

MASTER VOLUME

LOW

PAGING MIC

PHANTOM

up/down buttons so

and

HIGH

and

GAIN

) to the “U”

input.

SP2400 – 16

Page 17

Paging Mic Control

The

PAGING MIC CONTROL

provided to connect a manual paging switch. Connect a normally-open switch between

ZONE A

(to page in Zone B only), or (to page over the entire system). The voiceactivated ( operates in both zones when the switch is off.

(to page in Zone A only),

VOX

) control for the Paging Mic still

connector is

GND

and

GND

and

ZONE B

ALL CALL

and

Local Mic/Line Inputs

Connect a microphone to (one for each zone), using the supplied Phoenix-type connector, to use for a meeting room or other local speaking requirements. Set the

GAIN +40dB

Select the disengages the selected Program Source and engages the

VOLUME the “0” mark.

Note: The

MIC/LINE INPUTS VOLUME VOLUME

memory when the OFF button is engaged). When an selected, the

MIC/LINE INPUT

Set the near the “0” mark when speaking at an average level into the microphone.

Set the 2-band EQ ( position. These can be adjusted later, if necessary.

switches to their appropriate positions.

OFF

button on the front panel. This

MIC/LINE INPUT

up/down buttons so the meter level is at

MASTER VOLUME

is independent of the setting for setting for

MASTER VOLUME

GAIN

INPUTS 1-4 INPUTS 1-4

MIC/LINE INPUT

is stored in memory.

control so the meter indication is

MIC/LINE INPUT A or B

PHANTOM

. Adjust the

setting for the

. The

MASTER

is stored in

is selected (the

INPUT 1-4

setting for the

LOW

and

HIGH

) to the “U“

and

MASTER

Ambient Mic Inputs

This is an optional connection, but can greatly enhance the performance of the Paging Mic. Connect the optional MT-3100 mic to the

MIC

input (one for each zone). This provides an “ear” for the microprocessor to adjust the Paging Mic gain to compensate for the ambient noise level in the room. Use the supplied Phoenix-type connectors to make these connections.

Note: Move the enable the ambient mic. See page 20 for more information on "Using the Ambient Mic."

AMP ADDRESS

AMBIENT

switch #8 UP to

Expansion In/Out

If you are connecting two or more SP2400s in a system, use the to distribute the Program Input sources assigned to the Expansion Bus between SP2400s. The two 25pin D-Sub connectors are in parallel (use one to connect to the previous SP2400 and one to connect to the next SP2400 in the chain).

EXPANSION IN/OUT

connections

REMOTE

You can connect one or more optional remote controls (up to 10) to each zone on the SP2400 to provide wall-mounted input select, program signal volume control, and local mic volume control.

RS485

A PC can be connected to the RS485 port to provide computer control for up to 16 SP2400s, interconnected via their RS485 ports, using the SPLinker Sound Palette Control software application. If the PC doesn't have an RS485 serial port, you can either install an RS485 interface card, or use an RS232 serial port with an RS232-to-RS485 converter.

Two zones can be controlled with one wired remote control by connecting the RS485 ports between the two zones. (The RS485 ports are connected internally, so an external connection between the RS485 ports on a single SP2400 is not necessary.) Each amplifier must have the same

AMP ADDRESS

control is connected, with one assigned as Master and the other as Slave. Use the supplied Phoenixtype connectors to make these connections.

Note: Move the DOWN for Master and UP for Slave.

as the amp to which the remote

AMP ADDRESS

switch #6

PRE OUT/AMP IN

These connections can be used to insert a signal processor (i.e., graphic equalizer, compressor, etc.) into the signal chain, or to feed the signal to additional power amplifiers. If no external processor or external amplifier is to be used, leave the U-shaped jumper in place between the

PRE OUT

and

AMP IN

connectors.

OUTPUTS

Use the supplied two-conductor Phoenix-type connectors with appropriate speaker wiring to connect to the speaker or distributed speaker system.

SP2400 – 17

Page 18

Using INPUTS 1-4

Connect the program sources to Inputs 1-4. These could include a CD player, tape deck, tuner, satellite feed, TV audio, jukebox, or an audio feed from a live band. All four program inputs use unbalanced RCA connectors and accept stereo linelevel signals.

Note: The Input Select buttons are labeled 1 through 4 on the front panel. The spaces below the buttons are sized to accept 1/4" labels from the Brother P-Touch Electronic Labeling System. Professional-looking labels can be made to clearly identify the program source connected to each input (visit www.brother.com).

There are no individual volume controls for Inputs 1-4. The SP2400 automatically adjusts the volume for each input using an AGC circuit (Automatic Gain Control). This provides the best signal-to-noise ratio and insures that the volume remains the same when you switch from one source to another.

Only one Input source can be selected at a time. When switching from one source to another, the previous source fades out while the new source fades in (digital crossfade), rather than abruptly switching between the two.

In a zone configuration, move the

MONO

into a mono signal for each program source. Set the

AMP ADDRESS

allow independent control over each zone.

switches down to combine the stereo signal

switches to different addresses to

STEREO/

LOCAL or REMOTE

These switches are used to select the input source for each of the four Program Inputs. Leave the switches up to select the local input source connected to the Move the switches down to select the remote signal coming from the Each Program Input has two switches, one for the left input and one for the right input.

PROGRAM INPUT

EXPANSION IN

connector.

Bus Assign

These internal switches are used if you have two or more SP2400s connected together in a system using the the four program inputs can be individually assigned to the switches associated with each Program Input source (see the Bus Assign Switch chart on page 13).

Caution: Never assign more than one program source to each of the four expansion bus outputs.

EXPANSION IN/OUT

EXPANSION

balanced bus. There are four

connectors. Each of

INPUT 1 and the Direct OUTPUT

Input 1 provides a direct line-level output that can be used for music-on-hold or other external applications. Connect a continuous music source (i.e., satellite feed, prerecorded background music, multi-disc CD player) to Input 1 and connect the

DIRECT OUTPUT

jacks to the external destination.

INPUT 4 Priority

Normally, the four program inputs are nonpriority inputs. However, if there is a jukebox or other priority program source in the system, Program Priority can be activated on Input 4 by setting signal appears at Input 4, it overrides the other three inputs. When the signal stops, the SP2400 switches back to the previously selected input source, fading it in smoothly.

AMP ADDRESS

switch #7 UP. When a

STEREO or MONO

The four program inputs accept stereo signals. The SP2400 can be operated in a stereo configuration or a zone configuration. The switches should be set to the up position for stereo operation. Set the same address to allow the front panel and remote control panels to operate both amplifiers.

AMP ADDRESS

STEREO/MONO

switches to the

EXPANSION IN/OUT

These two 25-pin D-Sub connectors are used to connect two or more SP2400s together so they can share program sources. This is a true balanced bus and transmits the left and right signal from each of the four inputs over balanced lines. Refer to the “Connections” section on page 12 for information on wiring these connectors.

These connections allow a common program source to be available to all the SP2400s in a system. For example, prerecorded music that is used for music-on-hold can also serve as background music for an entire office building by setting the internal bus assign switches for Input 1 to the up position on the first SP2400. The music is then available to Input 1 on all the SP2400s connected via the

LOCAL/REMOTE

position (down).

REMOTE

different program source is connected locally to Input 1 on one of the SP2400s in the above example, both the common program source (the remote prerecorded music) and the local program source will be combined on Input 1 and can be played simultaneously. Typically, a local program source would not be connected to an Input which has

EXPANSION IN/OUT

switches are set to the

Note: Switching the

doesn't disconnect the local input. If a

REMOTE

selected as the source.

connectors when their

LOCAL/REMOTE

REMOTE

switch to

SP2400 – 18

Page 19

Using the 3-Band EQ

This equalizer is applied to the selected program source from Inputs 1-4, whether it is a local source or remote source (via the

This equalizer does not affect the paging mic or the local own 2-band EQ controls.

MIC/LINE INPUTS

EXPANSION IN/OUT

, which each have their

bus).

Using the Paging Mic

The paging mic is used to make announcements over the system. If the paging mic is a condenser mic or other type of mic that requires phantom power, move the position. Otherwise, leave them switched up.

The paging mic can be voice-activated and is routed to both channels or zones. However, you have the option of activating it manually with an external switch. If you choose to use a switch for the paging mic, you have the additional option of assigning the paging mic to either Zone A or Zone B, or to both zones.

• For Zone A only, connect a (normally-open) switch between the the

PAGING MIC CONTROL

• For Zone B only, connect a switch between the

ZONE B CONTROL

• For all zones in a system interconnected via the

EXPANSION ALL CALL CONTROL

• For maximum flexibility, connect three switches to the all three selections available.

turn down (duck, or attenuate) the music that is playing over the system so the announcement can be heard when using the VOX circuit. When an announcement is over, the music gradually returns to its original volume.

music 20 dB within 300 ms (milliseconds) of detecting a signal on the paging mic. When the signal on the paging mic stops, there is a 1500 ms (1.5 second) timeout period to make sure the announcement is over, and then the music ramps up to its original volume over the next 2.5 seconds.

there is no timeout period after the announcement ends. The moment you let go of the switch, the music begins to ramp up to its original volume.

and

connector.

and

connector.

PAGING MIC CONTROL

The paging mic can be configured to automatically

The music ducks fairly rapidly, attenuating the

Note 1: When manually activating the paging mic,

PHANTOM

ZONE A

GROUND

bus, connect a switch between the

GROUND

switches to the down

and

GROUND

connector.

pins on the

PAGING MIC

connector and have

pins on

Note 2: When the manual switch is off, the voice-activated ( still operational. Ensure that the threshold is set accordingly to prevent false triggering of the paging mic input when using

PAGING MIC CONTROL

turn the (fully clockwise) to defeat the VOX circuit. Note that each zone has its own

PAGING MIC VOX

VOX

) control for the paging mic is

PAGING MIC VOX

switching. Alternatively,

control all the way up

PAGING MIC VOX

control.

Setting the GAIN

When a microphone is connected directly to the paging mic input, the set in the down position (for a mic-level signal). When the paging mic is going through an external mixer, sending a line-level signal to the paging mic input, move the a line-level signal only).

pressing the up/down buttons so the meter indicates a level at the “0” mark. With all music sources off, speak into the paging mic with a normal voice. Adjust the with a non-conductive alignment tool so that the meter indication is near the “0” mark. This provides the best signal-to-noise ratio for the mic, and insures that the signal from the paging mic is strong enough to trigger the

GAIN +40dB

Adjust the

MASTER VOLUME

GAIN +40dB

switch to the up position (for

PAGING MIC GAIN

VOX

circuit.

switch should be

control by

control

Setting the VOX Threshold

This control determines how strong the signal from the paging mic must be to trigger the circuit, which ducks the program source when an announcement is made. Ideally, the threshold should be set so it is sensitive enough to trigger the

VOX

circuit as soon as you begin speaking, but not so sensitive as to be triggered by ambient sounds around the microphone. Set the control to the center position with a non-conductive alignment tool to start. Turn the control counterclockwise to lower the threshold (increase the sensitivity) if the beginning of announcements are getting clipped off. Turn the control clockwise to increase the threshold (decrease the sensitivity) should you experience false triggering due to ambient noise around the microphone.

PAGING MIC VOX

VOX

Using the EQ

The paging mic has a 2-band equalizer for adjusting the lows or highs on the microphone signal. When the controls are set to “U” (unity), the EQ has no effect on the signal.

SP2400 – 19

Page 20

Using the AMBIENT MIC

The ambient mic is an optional accessory (MT-

3100) that is available for the SP2400, which is used to sense the ambient noise level in the room. Set the

AMP ADDRESS

ambient mic, otherwise leave the switch down.

The ambient mic provides an “ear” for the microprocessor to gauge the ambient noise in the room and adjust the gain of the paging mic accordingly. When the background noise is relatively quiet, the paging mic gain is at its lowest level. If the background noise is relatively loud, the paging mic gain is at its highest level. If the background noise is somewhere in between, the paging mic gain is midway between its lowest and highest preset levels.

Ambient Mic Calibration and Placement

1. Connect the MT-3100 (or other microphone) to the

AMBIENT MIC

the ambient mic switch is on (

#8 up). Locate the ambient mic in an appropriate

position to pick up the ambient noise in the room. It

can be mounted on the ceiling or on a wall. Avoid

placing the ambient mic close to the speaker over

which the announcement is being made. Keep the

ambient mic away from a constant noise source, such

as a refrigerator or other mechanical device that emits

a continuous noise. The best placement is where the

mic can pick up an average representation of the

ambient noise level in the room.

Note: Each zone or channel must be calibrated

individually.

2. Turn off the SP2400, then turn it back on again while

pressing and holding the Input 2 button. This causes

the ambient mic preamp level to appear on the meter.

3. Establish the highest noise level that you would

expect to have in the room using a pink or white noise

source, or a music source. Input 1 is operational in this

mode to use as a music source, if desired.

4. Adjust the ambient mic preamp gain trim (located just

above the ambient mic connector on the rear panel,

through the unmarked hole) with a non-conductive

alignment tool until all the green LEDs on the meter are

lit. Insure that no yellow or red LEDs are lit, which runs

the risk of clipping the ambient mic preamp or ADC.

5. Press the “OFF” button when finished to return to

normal operation.

Paging Microphone Calibration Proce-

dure (when used with Ambient Mic)

1. Perform the “Ambient Microphone Calibration

Procedure” described above.

2. Switch the ambient mic OFF (

#8 down).

SP2400 – 20

switch #8 up to enable the

connector on the rear panel. Make sure

AMP ADDRESS

switch

3. Adjust the

Up/Down buttons so the meter indicates a level at the “0” mark.

4. Adjust the

go before feedback occurs while speaking into the paging microphone.

5. Switch the ambient mic on (

#8 up).

6. Turn off the SP2400, then turn it back on again while

pressing and holding the “3” button.

7. Release the Input 3 button after a few seconds and

the third LED starts flashing slowly.

8. Use the front panel Up/Down buttons to set the lower

level of the paging mic (how loud it is with very quiet background noise). It should be loud enough to be heard clearly throughout the coverage area.

9. Press the “OFF” button and the level is stored. The

third LED starts flashing faster.

10.Use the front panel Up/Down buttons to set the upper

level of the paging mic (how loud it is with very loud background noise). As a general rule, set this level as high as it will go before feedback (at the "0" mark if steps 3-4 above were followed).

11.Press the Input 3 button when finished to store the

level and return to normal operation.

12.Verify that the paging microphone’s volume is sufficient

to be heard over the background noise in the room.

Note: For best results, with the background noise level at a minimum, the paging mic volume should be approximately the same as the music volume.

13.If the paging microphone is not loud enough to be

heard over the background noise, verify that the ambient mic is properly placed to pick up an accurate representation of the background noise. If it is, it may be necessary to readjust the lower and upper levels for the paging mic gain (steps 6-11).

MASTER VOLUME

PAGING MIC GAIN

control by pressing the

control as high as it will

AMP ADDRESS

switch

Using the Local Mic/LINE INPUT

The

MIC/LINE INPUT A

each zone to connect a microphone for a speaker in a conference room, or similar sound reinforcement applications. If the local mic is a condenser mic, move the

PHANTOM

Setting the GAIN

When a microphone is connected directly to the

MIC/LINE INPUT

set in the down position (for a mic-level signal). When the mic is going through an external mixer, sending a line-level signal to the input, move the GAIN +40dB switch to the up position (for a linelevel signal only).

, the

and B is provided for

switches to the down position.

GAIN +40dB

switch should be

Page 21

Press the

INPUT

OFF

. Adjust the

button to select the

MASTER VOLUME

MIC/LINE

control by pressing the up/down buttons so the meter indicates a level at the “0” mark. With all music sources off, speak into the mic with a normal voice. Adjust the

MIC/LINE INPUT GAIN

control with a non-conductive alignment tool so that the meter indication is near the "0" mark. This provides the best signal-to-noise ratio for the mic and insures that its relative volume will be equivalent to the program sources.

Distributed Speaker System

When using the SP2400 in a 70V or 100V system, connect the speaker outputs directly to the distributed system. The SP2400 can directly drive a distributed system's speaker line without the need for an output transformer. The SP2400 can supply up to 200 watts into a 70V or 100V distributed system. Make sure the taps on the speakers in the system do not exceed a total of 200 watts.

Using the REMOTE Connection

Using the EQ

Each local equalizer for adjusting the lows or highs on the microphone signal. When the controls are set to “U” (unity), the EQ has no effect on the signal.

MIC/LINE INPUT

has a 2-band

Using the PRE OUT/AMP IN Connections

The

PRE OUT

and

AMP IN

connectors are provided to give you more flexibility in your system design. The SP2400 is shipped with U-shaped jumpers installed between the

jacks. This routes the signal from the output of

PRE OUT

and

AMP

the preamplifier stage to the input of the amplifier stage.

This also provides a point in the signal chain to insert an external signal processor. Simply connect the line-level signal from the

PRE OUT

jack to the input of the processor, and connect the line-level output from the processor to the

AMP IN

jack on

the SP2400.

Another option that is available is to connect another amplifier into the system. Simply use a Y-cord at the between the

PRE OUT

AMP IN

jack and the input jack on an

jack to split the signal

external amplifier.

LEFT and RIGHT OUTPUTs

The amplifier outputs on the SP2400 can be used with an 8-ohm impedance load, or to directly drive a 70V or 100V distributed system (also called constant-voltage systems).

Direct Speaker Connection

If the SP2400 is not being used in a distributed speaker system, you can reconfigure the amplifiers to drive an 8-ohm load. Each amplifier can provide up to 250 watts into an 8-ohm load. See the "Internal Settings" section on page 14 for instructions on how to reconfigure the amplifiers.

The optional SP2400 Remote Control (SP-41R) provides Input Selection and Master Volume control for each amplifier or zone. The Remote Control can be mounted in a standard double-gang electrical box and covered with a Decora®-style faceplate.

3 0 3 6

9 15 30 55

Connecting One or More Remote Controls

Each Remote Control affects only the zone to which it is connected. Up to ten remote controls may be connected to each zone simultaneously. This allows controls to be conveniently placed. Each control will interact with the SP2400, and all controls will reflect the current source and level settings. Note that the remote control indicates the gain setting and not the actual signal level in real time. In addition, the SP2400 provides a method for controlling two independent zones using a single Remote Control by assigning them to the same

AMP ADDRESS

The maximum distance between the remotes and the SP2400 varies, depending on the type of cable selected and the number of remote controls used. Typically, a lower wire gauge and cable capacitance allow longer distances. See the instructions with the remote control for more information.

(see next section).

SP2400 – 21

Page 22

Using the RS485 Connection

Each amplifier is equipped with an connection. These connectors are linked internally, so if both amplifiers have the same assignment, the Input Selection and

VOLUME

assigned to the same zone. One side must have

AMP ADDRESS

(up), and the other side in the Slave position (down).

two SP2400s by connecting the amplifiers together with the both amplifiers are assigned to the same zone (

AMP ADDRESS

Master and the other Slave, and that no other amplifiers are connected via the the same

operate both amplifiers that are assigned to the same zone.

ADDRESS

change is made to the the SP2400 off for five seconds, then turn it back on again for the new settings to take effect.

buttons track each other, since they are

switch #6 in the Master position

The same thing can be accomplished between

RS485

connection. Again, be sure that

switches 1-5), one is configured as

AMP ADDRESS

In this way, you can have one Remote control

Note: The microprocessor polls the

switch when it initializes at power-up. If a

AMP ADDRESS

Using the SPLinker Sound Palette

Controller

The RS485 connection can also be used to connect the SP2400 to a computer loaded with the SPLinker software application. The PC-compatible computer must have an RS485 port to properly connect to the SP2400. It may be necessary to install an RS485 interface card, or use an RS232 port with an RS232-to-RS485 converter.

RS485

AMP ADDRESS

MASTER

RS485

port with

AMP

switch, turn

The SPLinker is a PC-based graphical interface to provide real-time monitoring and control for up to 32 zones. It provides individual program source selection and volume control for each zone. Select boxes are located at the bottom of each zone for selecting multiple zones. All selected zones can then be modified at the same time in the Multiple settings box located on the right-hand side of the screen.

Using a 3rd Party Control System

The

RS485

connection can also be used to interface with common third-party control systems. Contact the third-party provider or Mackie Industrial Technical Support to determine if your control system is compatible with the SP2400.

Upgrading the Software

From time to time, Mackie Industrial will release upgrades for the internal operating software in the SP2400. This can be downloaded from our website (www.mackieindustrial.com) to a PC-compatible computer. Use the serial port on the computer to connect to internal connectors on the SP2400's CPU boards to transfer the data to the on-board flash memory. Instructions will be provided when upgrades are available.

SP2400 – 22

Page 23

5. Specifications

SP2400 Block Diagram

DIRECT

OUTPUT

INPUT 1

INPUT 2

INPUT 3

INPUT 4

+24VDC

PAGING MIC

+24VDC

MIC/LINE

INPUT A

+24VDC

AMBIENT MIC

(ZONE A)

+24VDC

MIC/LINE

INPUT B

+24VDC

AMBIENT MIC

(ZONE B)

PHANTOM

GAIN

+40dB

GAIN

+40dB

GAIN

+40dB

GAIN

+40dB

GAIN

+40dB

GAIN

+40dB

GAIN

INTERNAL

TRIM

GAIN

INTERNAL

TRIM

ADC

—

VOX

12K

—

BUS

ASSIGN

—

BUS

ASSIGN

—

BUS

ASSIGN

—

TO EXPANSION I/O

TO µP

BUS

ASSIGN

TO EXPANSION I/O

—

FROM

EXPANSION

—

I/O

—

FROM

EXPANSION

—

I/O

—

TO EXPANSION I/O

—

FROM

EXPANSION

—

I/O

—

FROM

EXPANSION

—

I/O

—

TO EXPANSION I/O

—

FROM

EXPANSION

—

I/O

—

FROM

EXPANSION

—

I/O

—

TO EXPANSION I/O

—

FROM

EXPANSION

—

I/O

—

FROM

EXPANSION

—

I/O

—

TO EXPANSION I/O

—

BUS

ASSIGN

MIC

+ —

ZONE A ZONE B

ALL CALL

GND

TO ZONE B

PAGE MIC

SWITCH

CONTROL

12K

HI80LO

LOCAL/REMOTE

STEREO/ MONO

PAGING MIC VOX

(TO µP)

ATTENUATOR

CONTROLLED

ATTENUATORS

CONTROL (FROM µP)

DIGITALLY

VOX

ACTIVATION

VOX

ACTIVATION

TO ZONE B

WOODINVILLE REDMOND

TO µP

MACKIE INDUSTRIAL SP2400 BLOCK DIAGRAM (#01.02.01.DF)

MACKIE

INDUSTRIAL

PROGRAM EQ

MID FREQ

ZONE A

AMP IN

12K

BYPASS

OVERLOAD

J6 EQ

FROM µP

V+

V—

V+

V—

–15VDC (w/J2 INSTALLED)

INPUT 4 RIGHT (+)

INPUT 4 LEFT (+)

INPUT 3 RIGHT (–)

INPUT 3 LEFT (–)

INPUT 2 RIGHT (+)

INPUT 2 LEFT (+)

INPUT 1 RIGHT (–)

INPUT 1 LEFT (–)

–15VDC (w/J2 INSTALLED)

INPUT 4 RIGHT (+)

INPUT 4 LEFT (+)

INPUT 3 RIGHT (–)

INPUT 3 LEFT (–)

INPUT 2 RIGHT (+)

INPUT 2 LEFT (+)

INPUT 1 RIGHT (–)

INPUT 1 LEFT (–)

DIGITALLY CONTROLLED ATTENUATOR

FROM TEMP

SENSOR

(ON HEATSINK)

PAGING MIC (+)

GROUND

PAGING MIC (+)

GROUND

PROTECTION

EXPANSION IN

N/C

EXPANSION OUT

INSERT

(INTERNAL

FOR OPTIONAL

DSP CARD)

70V/100V

ADC

8Ω

TO µP

ZONE A

PRE OUT

LEFT/ZONE A

OUTPUT +

—

SP2400 – 23

Page 24

SP2400 Specifications

Power Amplifier Section

Continuous Sine Wave Average Output Power, both channels driven:

200 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than 0.01% THD

100V rms per channel into 50 ohms from 20Hz to 20kHz, with no more than 0.1% THD (J2/J3 in 100V position)

70V rms per channel into 25 ohms from 20Hz to 20kHz, with no more than 0.1% THD (J2/J3 in 70V position)

Frequency Response

20Hz to 20kHz (+0, –0.5 dB)

Distortion

THD: < 0.01% @ rated output into 8 ohms

Signal-To-Noise Ratio

> 90 dB below rated power into 8 ohms > 100 dB (A-weighted) below rated power into 8 ohms

Channel Separation

> 80 dB @ 1kHz

Amp Input Impedance

20K ohms

Input Sensitivity

+5 dBu (1.37V rms) for rated power into 8 ohms

Gain

27 dB (8-ohm position) 27 dB (70V position) 30 dB (100V position)

Maximum Input Level

12 volts P-P (+15 dBu)

Rise Time

< 5 µS

Slew Rate

> 17 V/µS

3-Band Program EQ:

High Shelving: ±15 dB @ 12kHz

Mid Peaking: ± 15 dB with sweepable frequency

(250Hz to 8kHz)

Low Shelving: ± 15 dB @ 80Hz

2-Band Mic EQ:

High Shelving: ±12 dB @ 12kHz

Low Shelving: ± 12 dB @ 100Hz

General

Power Consumption

700 watts with musical program, 8 ohms per side 800 watts maximum

Phantom Power

24 VDC

AC Line Voltage

115VAC, 60Hz 230VAC, 50Hz

Fuse Rating

115V 8A Slow Blow, 250V 230V 4A Slow Blow, 250V

Dimensions

Height: 3.5" (88mm) Width: 19" (483mm) Depth: 16.7" (424mm) Weight: 40 lbs. (18.1kg)

Accessories

MT-3100 Ambient Noise Sensing Microphone SP-41R Remote Control

Preamplifier Section

Input Levels

Program Inputs: –10 dBu to +10 dBu for

Paging Mic Input: –52 dBu to +4 dBu Local Mic Input: –52 dBu to +4 dBu

Maximum Input

Program Inputs: +15 dBu Mic Inputs: +15 dBu

Maximum Output at Pre Out

+10 dBu

Stereo Separation

> 45 dB at 1kHz

SP2400 – 24

maximum output level with internal AGC

Page 25

Disclaimer

Mackie Industrial continually engages in research related to product improvement, new materials, and production methods. Design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.

Mackie Industrial and Sound Palette are trademarks or registered trademarks of Mackie Designs Inc.

All other brand names mentioned are trademarks or registered trademarks of their respective holders, and are hereby acknowledged.

6. Service Information

In the event that your SP2400 should require

servicing, please follow these instructions:

1. Call Mackie Industrial Tech Support at 1-888-3377404, 8 am to 5 pm PST (Monday-Friday), to verify the problem and obtain a Return Authorization (RA) Number. Be sure to have the serial number of the unit when you call. You must have a Return Authorization Number in order to obtain warranty service at the factory or at an authorized service center.

2. Pack the unit in its original packaging. This is very important. Mackie Industrial is not responsible for any damage that occurs during shipping due to non-conventional packaging. Original packaging helps to minimize the possibility of shipping damage.

3. Include a legible note stating your name, return shipping address, (no P.O. boxes), daytime phone number, Return Authorization Number, and a detailed description of the problem, including how we can duplicate it.

APPENDIX A: Default Settings

Control Setting

LOCAL/REMOTE UP (LOCAL)

STEREO/MONO DOWN (MONO)

PAGING MIC

PHANTOM UP (OFF)

GAIN +40dB UP (0dB)

GAIN CENTER

LOW CENTER (FLAT)

HIGH CENTER (FLAT)

ZONE A ZONE B

AMP ADDRESS 10000000 01000000

MIC/LINE INPUT

GAIN CENTER CENTER

LOW CENTER (FLAT) CENTER (FLAT)

HIGH CENTER (FLAT) CENTER (FLAT)

PHANTOM UP (OFF) UP (OFF)

GAIN +40dB UP (0dB) UP (0dB)

MIC VOX DOWN (OFF) DOWN (OFF)

PROGRAM EQ

LOW CENTER (FLAT) CENTER (FLAT)

MID CENTER (FLAT) CENTER (FLAT)

FREQ CENTER (1kHz) CENTER (1kHz)

HIGH CENTER (FLAT) CENTER (FLAT)

INTERNAL BUS ASSIGN (S1/S2) OFF

NOTE: All SP2400s sold in the U.S. and Canada are configured for 115V AC line input and 70V speaker output. All units sold outside the U.S. and Canada are configured for 230V AC and 100V speaker outputs. Please confirm your configuration prior to installation.

4. Write the Return Authorization Number in BIG BOLD PRINT on the top of the box.

5. Ship the unit to us. We suggest insurance for all forms of cartage. Ship to this address:

Mackie Industrial

Service Department

16140 Wood-Red Road NE, Suite 5

Woodinville, WA 98072

SP2400 – 25

Page 26

APPENDIX B: Button Modes

SP2400 Button Modes

Press 1 on Power Up:

• Press and hold the Input 1 button while powering up the SP2400.

• Release the Input 1 button and the Input 1 LED blinks. This resets the AGC for all four inputs to the default setting (–5 dBu).

• Press the Input 1 button again and the OFF LED lights. This indicates that the

AGC circuit is turned off.

• Press the Input 1 button again and the OFF LED turns off. This indicates that the AGC circuit is turned on.

• Press the OFF button to save the settings and return to normal operation.

Press 2 on Power Up:

• Press and hold the Input 2 button while powering up the SP2400.

• Release the Input 2 button. The Ambient Mic Preamp gain is indicated on the LED meter.

• Use this mode to calibrate the ambient mic (see procedure on page 20).

• Press the OFF button to return to normal operation.

Press 3 on Power Up:

• Press and hold the Input 3 button while powering up the SP2400.

• Release the Input 3 button. The lowest Paging Mic level is indicated on the LED meter.

• Use the Up/Down buttons to adjust the lowest Paging Mic level.

• Press the OFF button. The highest Paging Mic level is indicated on the LED meter.

• Use the Up/Down buttons to adjust the highest Paging Mic level (see procedure on page 20).

• Press the Input 3 button to save the settings and return to normal operation.

AGC Reset

Ambient Mic Preamp Metering

Paging Mic Level Adjustment

Press 4 on Power Up:

• Press and hold the Input 4 button while powering up the SP2400.

• Release the Input 4 button. The LEDs on the front panel indicate the firmware version in binary.

• The Input 1-4 LEDs indicate the digit to the left of the decimal point, and the LED meter indicates

the digit to the right of the decimal point.

• For example, the following illustration indicates version 1.7.

• Press the OFF button to return to normal operation.

Firmware Version

3 LED pairs lit 111 (in binary) = 7 (in decimal)

Version 1.7

SP2400 – 26

Page 27

APPENDIX C: Voltage Conversion

CAUTION: These servicing instructions are for use by qualified personnel only. To avoid electric shock, do not perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.

the power is off and the power cord disconnected

inside of the SP2400.

before removing the top cover to gain access to the

JUMPER INSTALLED FOR 115V

Make sure

RISK OF FIRE! REPLACE WITH FUSE AS MARKED

BLUE

MACKIE DESIGNS. ™

J12

055-286-00 REV:__ SP2400:SOFT START

4A SB 250V

J14

J11

YELLOW

YELLOW/RED

BLACK

BLACK/RED

YELLOW

ELLOW/RED

BLACK

BLACK/RED

J13

J10

BROWN

JP1

SP2400: 115V AC CONFIGURATION (8A, 250V SLOW BLOW FUSE INSTALLED IN IEC SOCKET)

REMOVE JUMPER FOR 230V

YELLOW

ELLOW/RED

BLACK

J13

J10

BROWN

JP1

RISK OF FIRE! REPLACE WITH FUSE AS MARKED

BLUE

J12

4A SB 250V

J14

J11

YELLOW

YELLOW/RED

BLACK

BLACK/RED

MACKIE DESIGNS. ™

055-286-00 REV:__ SP2400:SOFT START

BLACK/RED

SP2400: 230 VAC CONFIGURATION (4A, 250V SLOW BLOW FUSE INSTALLED IN IEC SOCKET)

SP2400 – 27

Page 28

SP2400 Music Controller

Mackie Industrial

16220 Wood-Red Rd. NE • Woodinville, WA 98072 • USA

888/337-7404 • Outside the U.S.: 425/487-4333

Fax: 425/487-4337 • www.mackieindustrial.com

Mackie SP2400 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

2. INTRODUCTION

KEY FEATURES

FRONT PANEL FEATURES

REAR PANEL FEATURES

3. Installation

Tips on Installing and Using the SP2400—Plan Ahead!

Connections

Internal Settings

AC Power Considerations

Thermal Considerations

4. Operation

SP2400 Quick Start

Using INPUTS 1-4

Using the 3-Band EQ

Using the Paging Mic

Using the AMBIENT MIC

Using the Local Mic/LINE INPUT

Using the PRE OUT/AMP IN Connections

LEFT and RIGHT OUTPUTs

Using the RS485 Connection

Upgrading the Software

5. Specifications

SP2400 Specifications

6. Service Information

APPENDIX A: Default Settings

APPENDIX B: Button Modes

APPENDIX C: Voltage Conversion