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Quick Start Guide PN 914-019-0 Rev C

Specifications

All specifications are measured at 14.4 VDC (standard automotive voltage). As technology advances, AudioControl reserves the right to continuously 

change our specifications, like our Pacific Northwest weather, although we are working on changing that as well.

The ACM-4.300 Amplifier

Power Output (RMS)   . . . . . . . . . . . . . . . . . . . . . . . . . . .4x50 Watts @ 4 Ohms

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4x75 Watts @ 2 Ohms

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2x150 Watts @ 4 Ohms Bridged

Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hz - 30 kHz

Total Harmonic Dist N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0.01%

S/N Ratio   . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 dBa, Ref 50 Watts @ 4 Ohms

Power / Ground Wire Gauge  . . . . . . . . . . . . . . . . . . . Between 8 and 4 AWG

Fuse Rating  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 X 30 Amps

Crossover. . . . . . . . . .12dB/Octave Linkwitz-Riley, 80 Hz, 120 Hz, Bypass

Speaker-Level Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2x, 40V (400W) max

Line-Level Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . .2x, balanced RCA, 8V max

Weight   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.15 lbs

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.41

"

 W X 2.97

"

 D X 1.75

"

 H

©2018 AudioControl. All rights reserved.

Warranty

For details of the limited warranty for your ACM-4.300, please visit the follow-

ing page on our website:   http://www.audiocontrol.com/warranty

Please keep your receipt in a safe place.

AudioControl

22410 70th Avenue West, Mountlake Terrace, WA 98043 USA, 

Phone 425-775-8461, FAX 425-778-3166   

 

e-mail: [email protected]

Protection Codes

The various codes flashed by the Protection LED will help you diagnose any 

problems with your system.

Turn On Delay

KEY

LED ON
LED OFF

300 mS

Short Protec�on

DC Output Protec�on

Transformer Overtemp

Heatsink Overtemp

Overvoltage

Undervoltage

0

0.5

1.0

1.5

2.0

2.5

Time sec

3.0

3.5

4.0

Summary of Contents for ACM-4.300

Page 1: ...el Amplifier High Current Design 4x50 Watts 4 Ohms 4x75 Watts 2 Ohms 2x150 Watts 4 Ohms Bridged Mono 12 dB Octave Linkwitz Riley Alignment Crossover GTO Signal Sense Great Turn On 4 Line Level RCA Inp...

Page 2: ...r moisture does not operate normally or has been dropped 14 This apparatus shall not be exposed to dripping or splashing and no object filled with liquids shall be placed on the apparatus 15 Fuses sha...

Page 3: ...ACM 4 300 amplifier will turn on Alternatively you can use the GTO feature of the amplifier so it will turn on when an audio signal is detected at the speaker level or line level inputs 4 Power Input...

Page 4: ...Make sure that you follow the plus and minus polarity markings on the ACM 4 300 and match it to the polarity of your loudspeakers In Stereo operation connect one loudspeaker to each channel as shown T...

Page 5: ...d cell phone signals that trigger the source unit in the vehicle to come on To prevent these from turning your audio system on unexpectedly you can bypass the GTO circuit by moving the switch to the O...

Page 6: ...e control is for channels 1 and 2 and the other for 3 and 4 The setting procedure is given on the next page and involves nerves of steel a steady hand grit determination and the thought that you are m...

Page 7: ...right and designate white black or grey plugs as left This is a good idea for consistency 6 Use quality interconnect cables 7 Connect the 12V input terminal of the unit to the 12V termi nal of the ve...

Page 8: ...ected to the ACM 4 300 remote input terminal When the head unit is turned on it will turn on the ACM 4 300 amplifier Alternatively the GTO signal sense feature can be used to gently turn on the ACM 4...

Page 9: ...sing Speaker Level Inputs Factory Radio Speaker level outputs Speaker level outputs Subwoofer Speaker level output 80 Hz and above Speaker level output 80 Hz and below ACM 1 300 Mono Subwoofer Amplifi...

Page 10: ...Guide System 2 Using Line Level Inputs Factory Radio Line level outputs Speaker level outputs Subwoofer Front Speakers Rear Speakers Speaker level output 80 Hz and below ACM 1 300 Mono Subwoofer Ampli...

Page 11: ...ntrols from dust bunnies Removal Procedure 1 Locate the top four screws that hold the cover plate in place 2 Use a philips screwdriver to remove the four screws 3 Keep the cover plate and screws in a...

Page 12: ...80 Hz 120 Hz Bypass Speaker Level Inputs 2x 40V 400W max Line Level Inputs 2x balanced RCA 8V max Weight 2 15 lbs Dimensions 9 41 W X 2 97 D X 1 75 H 2018 AudioControl All rights reserved Warranty Fo...

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