AudioControl ACM-4.300 4-Channel Micro Amplifier 300w
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The AudioControl ACM-4.300 is a compact four-channel micro amplifier delivering 4 x 75W RMS at 2 ohms, 4 x 50W RMS at 4 ohms, or 150W RMS bridged at 4 ohms. Part of AudioControl's ACM Series, it's built for clean power output in tight installation spaces with active speaker-level inputs for straightforward OEM and aftermarket integration.
Key specifications
- Power: 4 x 50W RMS at 4 ohms, 4 x 75W RMS at 2 ohms (14.4V)
- Bridged: 150W RMS at 4 ohms
- Inputs: 4 balanced preamp (500mV – 6Vrms), 4 speaker-level (3V – 40Vrms)
- Crossover: 12dB/octave Linkwitz-Riley, 80Hz, 120Hz or bypass
- Frequency response: 10Hz – 22kHz
- Signal to noise: 102dBA (ref 50W at 4 ohms)
- Fuse: 1 x 30A; power/ground wire 10 to 4 AWG
- Size and weight: 9.4 x 3.0 x 1.75 in, 0.98 kg
ACM-4.300 Four Channel Micro Amplifier
The ACM Series from AudioControl balances high power output with a compact footprint, making it suited to installations ranging from straightforward upgrades to more complex builds. Active speaker-level inputs allow integration with factory head units without the need for a separate line output converter — though AudioControl's LC2i and LC6i remain options for more complex OEM signal requirements.
Reversible cover plates allow flexible mounting, whether paired with AudioControl DM Series Processors or when fitting multiple ACM Series amplifiers into confined spaces.
Features
- 4 x 75W at 2 ohms
- 4 x 50W at 4 ohms
- 150W at 4 ohms bridged
- GTO™ Signal Sense
- Active speaker-level inputs for OEM integration
- RCA line inputs
- Linkwitz-Riley crossover
- Reversible cover plate
- 5-year warranty when installed by an authorised AudioControl dealer
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Specification
| Preamp Inputs | 4 Balanced |
|---|---|
| Preamp Input Voltage Range | 500 mV – 6 Vrms |
| Speaker Level Inputs | 4 |
| Speaker Level Input Voltage Range | 3 V – 40 Vrms |
| Frequency Response | 10 Hz – 22 kHz |
| Signal to Noise | 102 dBA, Ref 50 W @ 4 Ohm |
| THD+N | < 0.01% |
| Power / Ground Wire Gauge | 10 to 4 AWG wire |
| Fuse Rating | 1 x 30 A |
| Crossover | 12 dB/octave Linkwitz-Riley, 80 Hz, 120 Hz, Bypass |
| PFM Subsonic Filter | 32 Hz |
| Dimensions | 9.4″W x 3.0″D x 1.75″H |
| Weight | 2.2 lbs. (0.98 kg) |
More specs
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What's Included
- ACM-4.300
- Speaker Connectors
- Fuse
- Manual
- Warranty
AudioControl
About the AudioControl ACM-4.300
From our tech experts at CEN
A 4-channel amplifier from AudioControl, in a micro chassis small enough to hide behind a panel, rated at 300w RMS.
Who it suits
Drivers whose speakers have outgrown the head unit. Micro amplifiers are the answer in modern cars and vans where there is nowhere to put a full-size chassis. AudioControl built its name on signal processing, and that thinking runs through the amplifiers too.
Our tech experts advise
Matching matters more than headline watts, the gains want setting with a meter, and it needs a fused feed from the battery on the correct cable gauge. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full AudioControl range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all AudioControl
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Frequently Asked Questions
Q: Can the ACM-4.300 be bridged?
A: Yes. It can be bridged to deliver 150W RMS at 4 ohms, as well as running as four channels at 50W RMS (4 ohms) or 75W RMS (2 ohms).
Q: Will the ACM-4.300 work with a factory stereo?
A: Yes. It has active speaker-level inputs for OEM integration and GTO signal sense, alongside RCA line inputs for aftermarket head units.
Q: Does the ACM-4.300 have built-in crossovers?
A: Yes. It has a 12dB/octave Linkwitz-Riley crossover selectable at 80Hz or 120Hz, or bypass.
