AudioControl ACX-300.4 4-Channel Amplifier

The AudioControl ACX-300.4 is a four-channel, all-weather amplifier built for open-air systems in boats, UTVs, motorcycles, and more, delivering 4 x 75W at 2Ω (50W x 4 at 4Ω) or 150W bridged at 4Ω.

• 4 x 75W @ 2Ω: Higher current capability per channel for demanding open-air speakers, translating to more punch in low-impedance setups.
• 4 x 50W @ 4Ω: Solid four-channel power where load impedance sits at 4Ω, suitable for standard multi-speaker configurations.
• 150W @ 4Ω bridged: Bridges two channels for a single higher-power load, useful when you want increased output to a dedicated speaker or sub in a compact package.
• IPX6 rated: All-weather protection designed to withstand exposure to water spray and dust common in boats, off-road environments, and outdoor rides.
• GTO™ Signal Sense: Automatic signal-sensing features enable simplified power management and system integration in mixed-head-unit setups.
• 4- and 2-channel input modes with INPUT MODE SWITCH: Flexible wiring and configuration options to match your speaker layout and source arrangement.
• Linkwitz-Riley Crossover, 12 dB/octave with 80 Hz, 120 Hz, and Bypass
: Precise frequency shaping to optimize woofer/tweet er balance and overall system coherence.
• Input voltage range: Low 500 mV – 6 Vrms; High 1 Vrms – 12 Vrms, enabling compatibility with a wide range of source outputs.
• Performance specs: 26 Hz – 22 kHz frequency response; SNR 106 dBA (ref 50 W @ 4 Ω); THD+N < 0.2% for clean, faithful playback.
• Dimensions & weight: 9.0" W x 3.875" D x 2.25" H; 7.2 lbs.
• Installer-friendly features: Heavy gauge quick-connect wiring simplifies installation in vehicle and marine applications.
• Warranty: 5-year warranty when installed by an authorized AudioControl dealer.

The ACX-300.4 excels in four-channel or bridge-enabled setups for open-air systems, delivering clear, punchy performance across environments where weather exposure is a real factor. Its 12 dB/octave Linkwitz-Riley crossover lets you tailor bass management to match your speakers, while the IPX6 rating and installer-friendly wiring streamline installation on boats, UTVs, and motorcycles. With robust input sensitivity, wide frequency response, and a low-noise floor, it suits demanding outdoor installs that require reliable power and straightforward setup.