Inter-m PP-6214 Operation Manual

Operation Manual

Pre Amplifier

PP-6214

* Rack mount products in the Western Hemisphere(North America, South America,

and the Caribbean) do not have handles installed due to customer preference.

PRE AMPLIFIER

Welcome

Welcome

A personal welcome to you from the management and employees of Inter-M

All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.

We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete
satisfaction, we will endeavor to make things right.

Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!

This symbol is intend ed to aler t the user to the

CAutION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

Caution: To prevent electric shock do not use this (polarized) plug with

Attentions: Pour prévenir les chocs électriques ne pas utiliser cette

WARNING

To prevent fire or shock hazard, do not
expose the unit to rain or moisture.

*WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near water(e.g.

near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than objects do
not fall and liquids are not spilled into the enclosure through openings.

*CLASS 2 WIRING (Adjacent to speaker terminal): The speaker output of this apparatus can exceed 10 Watts and could be a shock injury.

Connection to speakers should be performed by a skilled person.
*Do not install this equipment in a confined space such as a book case or similar unit.
*This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.

It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.

*
*

The socket-outlet shall be installed near the equipment and shall be easily accessible.

CAutION

*These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing

other than that contained in the operating instructions unless you are qualified to do so.

NOtE
*This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment

generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful

interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will

be required to correct the interference at his own expense.

presence of uninsulated “dangerous voltage” within
the prod uct’s enclos ure t hat m ay be of suffi cient
magnitude to constitute a risk of electric shock to
persons.

This symbol is intend ed to aler t the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.

an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.

fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre insérées à fon d sa ns en laisser auc une par tie à
découvert.

PRE AMPLIFIER

Contents

Contents

Unpacking .......................................................................................................................................2

Installation

Environment....................................................................................................................................2

Important Safety Instructions.............................................................................................................2

Features............................................................................................................................................3

Accessories.....................................................................................................................................3

Operation ........................................................................................................................................3

Front Panel ......................................................................................................................................4

Rear Panel .......................................................................................................................................6

Applications ....................................................................................................................................8

Block Diagram ................................................................................................................................9

Specifications ................................................................................................................................10

Service

Procedures....................................................................................................................................12

Schematic.....................................................................................................................................12

Parts List .......................................................................................................................................12

Variations and Options ...............................................................................................................12

Warranty .......................................................................................................................................12

PP-6214

1

PRE AMPLIFIER

S3125A

Unpacking

Unpacking

Although your PP-6214 is neither complicated nor difficult to operate, we recommend you take a few minutes to
read this brief manual and familiarize yourself with the important information regarding product features, setup
and operation.

As with most electronic devices, we strongly recommend you retain the original packaging. In the unlikely event
the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.

Installation

Installation

Environment

Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.

S3125A

2

PP-6214

Features

Features

- VERSATILE AND COMPACT

Flexible mix architecture in a space-saving two RU package.

- TWELVE INPUTS AND TWO OUTPUTS

Eight mono inputs and two stereo inputs, plus a stereo output.

- INPUT AND OUTPUT METERING

Peak meters on input channels, plus multi-segment LED metering to monitor your output signal.

- THREE-BAND EQ

Three-Band EQ control on output section

- ON-BOARD PHANTOM POWER

Built-in +18VDC phantom power for condenser microphones

PRE AMPLIFIER

- AC OR DC OPERATION

Runs on 100-120VAC, 220-240VAC, or 24VDC for true portability.

Accessories

One detachable AC power cord is provided for use with this product.

Operation

Operation

Make certain that speakers and input sources are properly connected before switching on.

Keep volume levels turned down before switching on.

NOTE: The system’s operation is delayed by approximately three seconds after pressing the power switch. This

is due to the built-in protection circuitry, designed to protect speakers and other system components.

PP-6214

3

PRE AMPLIFIER

12 12

12 12

12 12

8KHz

8

00Hz

80Hz

100100

6016

TRIM

PEAK

C

HANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 CHANNEL 8 12PRIORITY

100

PEAK

100

PEAK

100

PEAK

100

PEA

100

PEAK

100

PEAK

100

PEAK

100 100

4dB

10dB

20dB

4dB

10dB

20dB

12 12

12 12

12 12

8KHz

8

00Hz

80Hz

EQ12

100

10dB

PRE AMPLIFIER

PP

6214

2

1

P

OWER

OFF

ON

21212121212121212

1

TRIM

6016
30

14

6016
30

14

6016
30

14

6016
30

14

6016
30

14

6016
30

14

6016
30

14

TRIM

61
31

TRIM TRIM TRIM TRIM TRIM

1

2MAIN

C

HANNEL 9 10CHANNEL 11 12

1

89 10 11

324567

Front Panel

Front Panel

1. TRIM CONTROLS 1-8

These knobs provide continuous control of pre-amp gain from +14dB to +58dB.

2. PEAK INDICATORS 1-8

These LED indicators light when the input signal to the associated channel is 3dB below clipping. If the
indicator is lit steadily, reduce the channel’s Trim level (1) to avoid distortion.

3. GAIN SELECT SWITCHES 9/10 – 11/12

These switches select the input gain level for Stereo Channels 9/10 and 11/12. You may select between
+4dB, –10dB or –20dB input level, depending on your input source. If the signal is too weak (very low level),
select a higher setting; if the signal is too hot (overloaded and distorted), select a lower setting.

4. EQ CONTROLS

These knobs provide continuous control of equalization for the stereo (master) output. Three bands of
equalization are provided:
Low: 80Hz, ±12dB, Shelving
Mid: 800Hz ±12dB, Shelving
High: 8kHz ±12dB, Shelving

5. MAIN OUTPUT LEVEL CONTROLS

These sliders provide control of the stereo (master) output level. The output level may be monitored by the
Output Level Meters (6).

6. OUTPUT LEVEL METERS

These five-segment LED meters monitor the level of the stereo (master) output signal.

4

PP-6214

PRE AMPLIFIER

7. PHANTOM POWER SWITCH AND INDICATOR

ressing this switch activates the +18VDC phantom power supply to the Mic Inputs 1-8, for use with

P
condenser mics requiring external power. When Phantom Power is active, the LED indicator lights. Push this
switch again to turn off Phantom Power.

8. CHANNEL SELECTOR SWITCHES 1-8

These buttons assign the channel’s input signal to one or both of the stereo outputs.

9. CHANNEL OUTPUT LEVELS 1-8

These knobs provide continuous control of the associated channel’s output level.

10. PRIORITY LEVEL CONTROL

This knob provides continuous control of the volume of the input signal of the chime, siren, or other audio
source connected to the Priority Input jacks on the rear panel. When signal is present at the Priority Input
jacks, all other signals except Channel 1 are muted.

11. POWER SWITCH

Press this switch to turn the unit on, as indicated by the Power LED in the switch. Pressing it again to turn the
unit off.

PP-6214

5

PRE AMPLIFIER

F

USE

T

400mAL/250V

2

1 2 1

www.inter-m.com

AC INPUT
2

30V 50Hz

9.8W

~

DC INPUT

2

4

V

L

IN

E

I

NSERT INSER

T

R

EC OUTPUT

PRIORITY INPUT

MI

C MIC MIC MIC MIC MIC MIC MIC

CH 2

O

UTPUT OUTPUT

M

UTE

ON

OF

F

L

INE LINE LINE LINE LINE LIN

E

C

H 5 CH 4 CH 3 CH 2 CH 1CH 8 CH 7 CH 6

CH

1

CH 12 CH 10CH 11 CH 9

1 2 3 4 5 6

7 8 9 10

11

Rear Panel

Rear Panel

1. AC FUSE HOLDER

This holder contains the AC overload protection fuse. If the fuse has blown out, replace it with a fuse of the
same type and rating. If the fuse continues to blow, refer servicing to a qualified service technician.

2. INSERTS

These unbalanced 1/4” TRS jacks are provided for input of an audio source before the master fader. The
input signal is unaffected by the Channel Input levels.

3. LINE INPUTS 9-12

Line-level inputs on unbalanced RCA and 1/4” phone connectors. These are provided as two sets of stereo
inputs (9/10 and 11/12).

4. REC OUTPUT

These two unbalanced 1/4” line-level inputs are provided for connecting to an external recording device.

5. PRIORITY INPUT

These two unbalanced 1/4” line-level inputs are provided for priority connection of chime/siren equipment.
When input signal is present on these inputs, all other audio inputs except Channel 1 are automatically
muted.

6. MUTE SWITCH

When this switch is pressed, priority muting is activated, and all signals except Channel 1 and Priority Input
are muted.

7. AC POWER INPUT

6

Connect the supplied standard AC input cable here.

PP-6214

PRE AMPLIFIER

8. MAIN OUTPUTS

hese are balanced XLR output jacks for connecting to the input of a power amp.

T

9. DC INPUT TERMINALS

These terminals are provided for the connection of backup battery. Connect a 24VDC battery source to these
terminals. Make certain the red terminal is connected to the battery’s positive (+) side, and the black terminal
to the battery’s negative (–) side.

10. MIC INPUTS 1-8

Mic-level inputs on balanced three-pin XLR connectors.

11. LINE INPUTS 2-8

Line-level inputs on balanced 1/4” phone connectors.

PP-6214

7

PRE AMPLIFIER

FUSE

T

400mAL/250V

DC INPUT

24

V

LIN

E

I

NSERT INSER

T

REC OUTPU

T PRIORITY INPUT

MI

C MIC MIC MIC MIC MIC MIC MIC

CH 2

O

UTPUT OUTPUT

MUTE

ON

O

F

F

LINE LINE LINE LINE LINE LINE

CH 5 CH 4 CH 3 CH 2 CH 1CH 8 CH 7 CH 6

CH

1

CH 12 CH 10CH 11 CH 9

2 1 2 1

w

ww.inter-m.com

S

N

OC03OC03

0210

MODEL NO. PE-9103A

M

ADE IN KOREA

CHIME/SIREN

FUSE

T315mAL / 250V

~

A

C INPUT

120V 60Hz, 11W

DC INPUT

24V

UNBAL / 75

L

OOP

ANT

.

LR

STEREO

MONO(BAL)MONO(BAL)

VARIABLEFIXED

S

N

www.inter-m.com

OUTPUT

ANT

RESET

FM AM

DIGI-LINK

PB-6207

P

E

-

6

1

0

3

PP-6214

PD-6359

AC INPUT

BATT ERY

(DC 24V)

TUNER

PC-6335

PA-6312
PA-6324

MIC

CD-6208

DC INPUT

24V

S

N

2TONE

WEST

MINSTER

OUTPUT

REMOTE CHIME

Applications

Applications

8

PP-6214

Block Diagram

Block Diagram

PRE AMPLIFIER

PP-6214

9

PRE AMPLIFIER

Specifications

Specifications

Frequency Response (+1dB/-3dB) 20Hz-20kHz

Total Harmonic Distortion Less than 0.5%

Input Sensitivity/Impedance

Mic Input 1-8 -60dB/600Ω, Balanced

Line Input 2-8 -30dB/10kΩ, Balanced

Line Input 9-12 +4dB, -10dB, -20dBm/10kΩ, Unbalanced

Priority In 0dB/10kΩ

Output/Impedance

PP-6214

Ch 1-2 (Master) +4dB/600Ω, Balanced

Rec Out -10dB/10kΩ, Unbalanced

Insert 0dB/10kΩ, Unbalanced

Residual Noise

All Faders Min 90dB

All Faders Min, Master Fader Max 70dB

Crosstalk

Input to Output 70dB

Adjacent 70dB

Power Source 100–120VAC or 220–240VAC; 50/60Hz, 24VDC Auto-Switching

(Supplied AC mains transformer depends on country requirements)

Power Consumption 9.8W

Weight (SET) 5kg/11lb

Dimensions (SET) 482(W)x88(H)x280(D)mm/19(W)x3.5(H)x11(D)in

* Specifications and design are subject to change without notice.

10

PP-6214

440

482

280

88

※ DIMENSIONS

PRE AMPLIFIER

PP-6214

11

PRE AMPLIFIER

Service

Service

Procedures

Take steps to insure the problem is not related to operator error or other products within the system. Information
provided in the troubleshooting portion of this manual may help with this process. Once it is certain that the
problem is related to the product contact your warranty provider as described in the warranty section of this
manual.

Schematic

A Schematic is available by contacting your warranty provider.

Parts List

A Parts List is available by contacting your warranty provider.

Variations and Options

Variations and Options

Variations

Variations of this product exist to reflect the variations in AC power requirements throughout the world. Product
supplied through local sources are compatible with local AC power requirements.

Options

No optional items are available for this product.

Warranty

Warranty

Warranty terms and conditions vary by country and may not be the same for all products. Terms and conditions
of warranty for a given product may be determined first by locating the appropriate country which the product
was purchased in, then by locating the product type.

To obtain specific warranty information and available service locations contact Inter-M directly or the
authorized Inter-M Distributor for your specific country or region.

12

PP-6214

Inter-M, Ltd. (Korea) began operations in 1983.

Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.

Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).

The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.

With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.

Inter-M Americas, Inc.

13875 Artesia Blvd. Cerritos, CA 90703 USA
TEL : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [e-mail]

Inter-M Corporation

Seoul OFFICE:653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [e-mail]

MADE IN KOREA

June 2012 130445