Mackie AM4060, AM4120, AM4160 Quick Start Guide

The COMMANDS PRIORITY terminal provides
access to the priority function for Inputs 1­4 over the AUX input by using a external
normally-open switch to short-circuit the
COMMANDS PRIORITY terminal to the GND
(ground) terminal. Enabling the COMMANDS
PRIORITY function also activates the Vdc
LED and Vdc 300mA outputs, as well as
the optional chime board (A1708).

This GND terminal is the common
connection point for Vdc LED, Vdc 300mA,
and COMMAND PRIORITY.

AC Protection Fuse protects the power
supply and amplifier circuitry. Replace
only with same type fuse.

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.
Replace only with same type fuse.

The VOLTAGE SELECTOR switch is used to
select the supply voltage for the amplifier.
Move switch so the AC line voltage used
appears on the switch (DOWN for 115V,
UP for 230V).

The CHIME LEVEL control is used to adjust
the level of the chime signal if the optional
A1708 Chime board is installed. Use a
small screwdriver to adjust the control
clockwise for more signal, counter­clockwise for less signal.

The OUTPUT LEVEL control adjusts the
TAPE OUT level. Use a small screwdriver to
adjust the control clockwise for more
signal, counterclockwise for less signal.

The TAPE OUT jacks are RCA-type
connectors for connecting to the inputs of a
tape recorder or other recording device.
The signal at the TAPE OUT jacks is pre- EQ
and Master VOLUME control.

PRE OUT is an RCA jack that provides a
line-level signal from the preamplifier
stage. This provides a method for inserting
an external signal processor into the
signal chain prior to the amplifier stage, or
branching off to another amplifier using a
Y-cord. The signal at the PRE OUT is post­EQ and Master VOLUME control. The U­shaped jumper wire should remain
installed between the PRE OUT and MAIN
IN jacks for normal operation.

MAIN IN is an RCA jack that accepts a line­level signal. See PRE OUT above.

AUX IN are auxiliary inputs for connecting
additional stereo line-level audio sources
such as a cassette deck, CD player, AM/FM
Tuner, etc. These are unbalanced stereo
inputs that are combined internally into a
monophonic signal. Note that only one
stereo auxiliary input can be used at a
time, as determined by the AUX switch on
the front panel.

The VOICE THR control is used for
adjusting the sensitivity of the INPUT 1
PRIORITY function. Use a small screwdriver
to adjust the control. Turning clockwise
increases the sensitivity, which means
that the priority function is triggered with a
less intense signal.

INPUT 1 MIC/LINE input is an XLR jack for
connecting a balanced low impedance
dynamic microphone (with MIC selected)
or a balanced line-level signal (with LINE
selected). This input is in parallel with the
INPUT 1 IN terminals (16). Pin 1 is ground,
pin 2 is signal high (+), and pin 3 is signal
low (–).

The MIC/LINE switch is used to select the
correct sensitivity for either a mic-level or
line-level signal at INPUT 1.

The PHANTOM 24V switch supplies 24 VDC
to pins 2 and 3 of INPUTS 2, 3, and 4 for
microphones requiring phantom
powering. An internal jumper is provided
to disconnect the phantom power from
Input 4 if desired.

INPUTS 2, 3, and 4 are balanced XLR jacks
for connecting dynamic or condenser
microphones. Pin 1 is ground, pin 2 is
signal high (+), and pin 3 is signal low (–).

The H.P. switch activates a high-pass filter
on INPUTS 2-4, which attenuates frequen­cies below 300Hz at 12 dB/octave.

The L.P. switch activates a low-pass filter
on INPUTS 2-4, which attenuates
frequencies above 7kHz at 12 dB/octave.

www.mackieindustrial.com

16220 Wood-Red Road NE, Woodinville, WA 98072 USA

TEL [phone], FAX [phone], [e-mail]

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Part No. 910-139-20 Rev. B 10/01
© 2001 Mackie Industrial. All Rights Reserved. Printed in the U.S.A.

INPUT 1INPUT

5

4

6

3

1

10

0

INPUT LEVELS

INPUT

3

2

5

5

4

4

6

7

3

82

1

9

0

6

7

3

7

82

82

1

9

9

10

10

0

AUX

INPUT

4

5

5

4

4

6

6

3

7

3

82

1

1

9

10

0

0

1

7

82

9

10

The AM4000 Series Integrated Mixer/
Amplifiers are designed for continuous duty in
speech, music, paging, and sound reinforce­ment applications in churches, schools, offices,
and other venues demanding high performance,
flexible features, and rugged dependability.

Four XLR-type microphone inputs are actively
balanced and can be programmed to interrupt
or attenuate the line-level inputs. Microphone
inputs 2-4 feature switched 24V phantom
power and switched high-pass and low-pass
filters. Microphone input 1 can be switched to
line level and set to have priority over all
inputs, which can be activated by either VOX,
with an adjustable threshold, or a contact
closure. Activation of either override provides
18 VDC (300mA) at a barrier connector on the
rear panel to drive relays, and a separate
terminal that may be used to drive LEDs. Two
unbalanced, stereo Aux input connectors are
internally summed to mono and selected by a
switch on the front panel. Two unbalanced Tape
line-level outputs with a level control and an
unbalanced signal processing loop are also

Safety First!

Before connecting and using the
equipment, please read this Quick-Start Guide
carefully and keep it for future reference.

WARNING! This equipment has been
designed to be installed by qualified
professionals only! There are many factors to
be considered when installing professional
sound reinforcement systems, including
mechanical and electrical considerations, as
well as acoustic coverage and performance.
Mackie Industrial strongly recommends that
this equipment be installed only by a
professional sound installer or contractor.

CAUTION: To avoid the risk of electric

shock, never allow this equipment to

be exposed to rain or dampness.

AM4000 Series

Integrated Mixer/Amplifier

Quick-Start Guide

AM 4160 - P.A. AMPLIFIER

OVERLOAD

AUX

LOWEQHIGH

0

0

2

2

2

2

4

4

4

66

8

8

8

+10

-10

+10

-10

VOLUME

4

2

3

4

66

8

1

0

provided. All are terminated to RCA connectors.

Output modes include 4Ω constant
impedance and 25V, 50V, 70V, and 100V
constant voltage. The smart output stage is fully
protected against permanent damage caused by
overloading, shorts, and extreme temperatures.
The AM4000 Series operates on either 115VAC
or 230 VAC, 50/60Hz, as determined by the
Voltage Selector switch, and supplied by a
detachable IEC power cord. Insulated terminals to
connect a backup 24 VDC battery are provided on
the rear panel. Switchover to DC is automatic.

The front panel provides level controls for
each Mic input and the selected Aux input, a
Master volume control, and Low and High EQ
controls. The control knobs can be removed for
security, and their recessed shafts covered with
the supplied inserts. LEDs indicate power, signal
present at the output, peak, and output overload.
12 dB/octave Low and High shelving equaliza­tion with up to 12 dB of boost or cut at 100Hz
and 10kHz can be applied to the output signal.

Accessories include a rack mounting kit and
an easily installed chime card.

1. Never install, connect, or disconnect
the unit with the power supply on.

2. Before powering up the AM4000 Series
integrated amplifier, make sure the voltage
selector switch on the rear panel
corresponds to the AC voltage applied.

3. Make sure the safety ground on the
power cord is properly grounded.

4. To prevent the risk of electric shock,
never open the unit. There are no
user-serviceable parts inside.

5. To ensure normal cooling of the
AM4000 Series, make sure the unit is
well-ventilated. Avoid exposure to direct
sunlight or proximity to any heat
source, dust, or dampness.

6. If installed in an equipment rack, provide
at least one rack space between each
integrated amplifier.

SIGNAL

5

6

7

82

9

10

ON

PEAK

POWER

INPUT LEVELS

INPUT

1

INPUT

5

4

3

1

10

0

5

4

6

3

7

82

1

9

0

INPUT

2

4

6

3

7

82

1

9

10

0

Front Panel Features

INPUT LEVELS knobs are used to adjust
the volume of the sound sources
connected to INPUTs 1-4 and AUX IN. To
prevent the levels from being modified,
the knobs can be removed and the holes
can be covered using the supplied inserts.

AUX selector is used to select the AUX IN
signal that is routed to the output. Only
one AUX IN can be selected at a time.

LOW EQ is a shelving filter that provides
12 dB of boost and cut below 100Hz.

HIGH EQ is a shelving filter that provides
12 dB of boost and cut above 10kHz.

VOLUM E is a master volume control used
to adjust the overall volume of the signal
at the POWER OUTPUTS.

The POWER switch turns the AM4000
Series on and off.

The OVERLOAD indicator lights when the
amplifier is operating in overload, a
condition generally caused by a problem
on the speaker line. When the amplifier is
switched on, the OVERLOAD light comes
on for a few seconds. This is normal and
does not indicate a problem.

The SIGNAL indicator lights when a signal
is present at the POWER OUTPUTS.

The PEAK indicator lights when the output
signal is approaching clipping.

The ON indicator lights when the AM4000
is turned on and ready for operation.

The INPUT 1 IN terminals are parallel
with the INPUT 1 XLR connector and

AM 4160 - P.A. AMPLIFIER

OVER LOAD

3

INPUT

4

5

10

5

4

6

3

7

82

1

9

0

AUX

5

4

6

7

9

10

6

3

7

82

1

82

9

10

0

AUX

2

1

4

8

EQ

LOW

0

2

-10

HIGH

0

2

2

4

8

+10

2

4

4

66

8

66

8

+10

-10

3

1

VOLUME

5

4

0

6

7

82

9

10

SIGNAL

PEAK

ON

POWER

accept a balanced mic or line-level signal.
INPUT 1 has a priority
function for paging
purposes, and
attenuates all other
inputs when a signal
is present at its input.
Use the VOICE THR.

control to adjust

INPUT

2

1

1

3

INPUT

Pin 2

Pin 3

IN

PRIORITY

XLR to Terminal Strip

Cross-Reference

1

the threshold for the
voice-activated circuit. Activation of the

Pin 1

GND

priority function can also be accomplished

Rear Panel Features

POWER INPUT provides a means to
connect an external 24 VDC power supply
or battery as an alternative or backup
power source. The AM4000 Series
seamlessly switches to the backup supply
if there's an AC power loss. When both AC
power and 24 VDC power are connected,
the DC power is switched off.

Note: The unit is not equipped with
battery charging capabilities.

The D.C. FUSE protects the DC POWER INPUT
circuit. Replace with the same type fuse only.

POWER OUTPUTS are screw-terminal
connections for connecting speakers to the
4-ohm, 25V, 50V, 70V, or 100V outputs.

WARNING: To prevent the risk of electric
shock, never touch the bare wires coming
from the output terminals of the amplifier
when it is switched on. When the
connections have been made, insulate
the output terminals of the amplifier
using the protective cover provided.

Constant-Impedance Output

The total impedance of the speakers and
cable connected to the "4Ω" constant­impedance output should be 4 ohms.
Connect the "4Ω" terminal to the "+"
(HIGH) speaker terminal, and the "0"
terminal to the "–" (LOW) speaker terminal.

Constant-Voltage Output

In a constant-voltage system, each
speaker must be equipped with a line
transformer having an input voltage equal
to that of the speaker line (e.g., 25V, 50V,
70V, or 100V). Typically, these line
transformers have selectable power taps
(i.e., 2.5W, 5W, 10W) for connecting to the
constant-voltage line. CAUTION: The sum
of the wattage values of the speakers must
not exceed the output power of the
amplifier.

Connect the appropriate POWER OUTPUT
voltage terminal to the "+" (HIGH) leg and
the "0" terminal to the "–" (LOW) leg of the
distributed speaker system.

The ground ( ) terminal is internally
connected to the chassis and safety
ground on the AC linecord.

using the INPUT 1 PRIORITY terminal.

The INPUT 1 PRIORITY terminal activates
the priority function for INPUT 1 by using
an external normally-open switch to short­circuit the INPUT 1 PRIORITY terminal to
the GND (ground) terminal. When the
INPUT 1 PRIORITY function is enabled, all
other inputs are muted (no signal is
transmitted to the outputs). An internal
jumper changes the priority function so
that the other inputs are attenuated rather
than completely muted.

Enabling the INPUT 1 PRIORITY function
also enables the Vdc LED and Vdc 300mA
outputs on the COMMANDS terminal strip.

This GND terminal is the common connection
point for INPUT 1 IN and PRIORITY.

The Vdc LED terminal is active when INPUT
1 PRIORITY or COMMANDS PRIORITY is
enabled. This provides 18 VDC for driving
an LED to indicate when the INPUT 1
PRIORITY has been activated.

The Vdc 300mA terminal is also active when
INPUT 1 PRIORITY or COMMANDS PRIORITY
is enabled. This provides 18 VDC with a
maximum output capacity of 300mA for
driving an auxiliary relay.

POWER INPUT

24V D.C.

+

LINE

50/60 Hz-115/230V

D.C. FUSE

-

VOLTAGE
SELECTOR

-

THE FOLLOWING ARE TRADEMARKS/REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", "MACKIE INDUSTRIAL", & THE "RUNNING MAN" FIGURE

POWER OUTPUTS

0 50V 70V 100V

CHIME
LEVEL

+

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE INDUSTRIAL • MADE IN ITALY • PATENTS PENDING • COPYRIGHT ©1999

OUTPUT

-

TAPE OUT

L

LEVEL

R

+

PRE OUT

MAIN IN

POWER OUTPUTS

0

4

AUX IN

R

1L2

INPUT

1

IN

25V

L

R

INPUT

VOICE

THR.

+

-

PRIORITY GND

1

MIC/LINE

LINEONOFF

MIC

PHANTOM

24V

INPUT

COMMANDS

Vdc

Vdc

LED

300mA

INPUT

2

CAUTION:
ELECTRIC SHOCK HAZARD
DO NOT REMOVE COVER
REFER SERVICING TO QUALIFIED PERSONNEL
SEE INSTRUCTION MANUAL

PRIORITY GND

3

INPUT

4

FILTER

H.P. L.P.

OFF

ON