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AudioControl ACM-4.300

ACM Series compact 4-channel car amplifier — 50 watts RMS x 4

Item # 161ACM4300

Power makes good speakers sound great, but where to put an amp in your smaller vehicle? AudioControl comes to the...

Read more from Crutchfield writer, Buck P.

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$299.99

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About the AudioControl ACM-4.300

Play your music loud and clear

Power makes good speakers sound great, but where to put an amp in your smaller vehicle? AudioControl comes to the rescue with their compact ACM-4.300 4-channel amp, which delivers 50 watts RMS per channel — perfect for two sets of speakers. This tiny, hand-size amplifier will fit almost anywhere in almost any kind of vehicle, improving the impact and clarity of your music. Even better, it features high-level inputs with signal-sensing turn-on, so it'll work with almost any stereo system, even one using a factory radio.

Play your music loud and clear

Power makes good speakers sound great, but where to put an amp in your smaller vehicle? AudioControl comes to the rescue with their compact ACM-4.300 4-channel amp, which delivers 50 watts RMS per channel — perfect for two sets of speakers. This tiny, hand-size amplifier will fit almost anywhere in almost any kind of vehicle, improving the impact and clarity of your music. Even better, it features high-level inputs with signal-sensing turn-on, so it'll work with almost any stereo system, even one using a factory radio.

Versatility and practical features

To simplify setup, a "Maximized" LED indicates when you've set the amplifier's gain for optimum performance. Like it loud? This amp can also operate in two-channel mode to power a pair of high-performance speakers with 150 watts RMS each.

AudioControl ACM-4.300

ACM-4.300 controls and connections

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Product highlights:

  • 4-channel car amplifier
  • 50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
  • 150 watts RMS x 2 bridged at 4 ohms
  • Class D amp technology
  • selectable high-pass filter (bypass, 80, 120 Hz at 12 dB/octave) on front and rear channels
  • subsonic filter: 32 Hz
  • preamp and speaker-level inputs
    • GTO™ (Great Turn On) signal-sensing turn-on with speaker-level input
  • fuse rating: 30A x 1
  • wiring and hardware not included with amplifier
    • 8-gauge power and ground leads recommended
  • dimensions: 9-1/2"W x 1-3/4"H x 3-1/2"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # ACM-4.300
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What's in the box:

  • Amplifier
  • 30A fuse (installed on amp)
  • Two 4-pin speaker input connectors (installed on amp)
  • Two 4-pin speaker output connectors (installed on amp)
  • Quick start guide

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AudioControl ACM-4.300 Reviews

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Features

Overview: The AudioControl ACM-4.300 micro amplifier is a compact 4 channel amp that can output 50 watts RMS into a 4Ω load, 75 watts RMS into a 2Ω load, and 150 watts bridged into a 4Ω load. It includes both RCA line-level and speaker-level inputs, making it ideal for OEM integration, as well as AudioControl's GTO signal sensing turn-on circuitry.

Crossovers: The ACM-4.300 includes two 12 dB/octave Linkwitz-Riley High pass filters, one for Channels 1 & 2 and one for Cannels 3 & 4. Both use a 3-position switch to change the crossover point with a choice of 80 Hz, 100 Hz, or Bypass. The amp also incorporates a built-in PFM subsonic crossover at 32 Hz.

Gain Maximized LEDs: Each pair of channels on the amp include their own Gain control to the properly set the input level. A Maximized LED indicator is provided for each that lights to let you know when the input signal has reached its optimum performance level, helping to avoid running a distorted signal through the amp.

GTO (Great Turn On) Signal Sense: If you are connecting the amplifier to a factory stereo, or an aftermarket unit without preamp outputs and a remote turn-on lead, the GTO Signal Sense circuitry can turn on the amplifier when an audio signal is detected on either the line-level or speaker-level inputs. After a period of time with no signal input, the amp will turn itself off.

Cover Plate: The ACM-4.300 amp includes a removable top plate that covers the controls and LED indicators. The cover is also reversible if  a "plain" look is desired.

Specifications:

  • Preamp Inputs: 4
  • Speaker Level Inputs: 4
  • Preamp Input Voltage Range: 500mV - 6V RMS
  • Continuous Output Power (14.4V):
    • 4Ω: 50W x 4 RMS
    • 2Ω: 75W x 4 RMS
    • Bridged 4Ω: 150W x 2 RMS
  • Frequency Response: 10Hz - 22kHz
  • Signal to Noise Ratio: 102 dBA, Ref 50W @ 4Ω
  • THD+N: <0.01%
  • Fuse Rating: 30A x 1
  • Crossover: 12 dB/octave Linkwitz-Riley, 80Hz/120Hz/Bypass
  • PFM Subsonic Filter: 32Hz
  • Dimensions: Width - 9.44", Height - 1.70", Depth - 3.50"
  • Weight: 1.3 lbs.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I have too many wires running in my car. I have a line output converter and two amps. With this AudioControl amp, I can minimize wiring. [ SEYHA  Feb 09, 2019 ]

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