AudioControl ACX-650.5 5-Channel Amplifer

AudioControl’s ACX-650.5 all-weather amplifier delivers honest power levels to the sound system in your boat, utv, motorcycle, and more. The 5-channel design powers four channels for speakers with a bridged mono option, all with weatherproof protection for outdoor use.

• All-weather / IPX6 rated: Encased to withstand outdoor environments, including exposure to water jets, making it suitable for boats, utv, and motorcycles.
• Power output and configurations: 4 Ω: 4 x 50 W + 1 x 200 W; 2 Ω: 4 x 75 W + 1 x 350 W; Bridged mono: 2 x 150 W @ 4 Ω.
• Bridged mono capability: Two channels can be bridged to drive a single mono load for a dedicated woofer or sub, increasing system flexibility.
• Heavy-gauge quick-connect wiring: Installer-friendly cabling approach for faster, more reliable installations in rugged outdoor setups.
• AccuBASS bass management: Built-in bass management to help shape and control low-end performance within the system.
• GTO Signal Sense: Integrated signal-sensing feature tied to the amp’s input handling and behavior.
• High and low input modes: Supports both high-level and low-level sources for flexible integration with a variety of source units.
• 6 input options: Preamp or Speaker Level Inputs provide multiple ways to connect audio signals.
• Linkwitz-Riley Crossover: 12 dB/octave crossover with selectable 80 Hz, 120 Hz, or bypass for clean speaker integration.
• Frequency response: 26 Hz – 22 kHz for broad audio range with minimal loss in the musical spectrum.
• Signal to Noise / THD: SNR 102 dBA (Ref 50 W @ 4 Ω); THD+N < 0.05% for clear, accurate output.
• Dimensions / Weight: 11.97" W x 5.31" D x 2.36" H; 5.8 lb.
• Fuse: Recommended fuse rating 30A.
• In the box: ACX-650.5, Manual, Warranty.
• Warranty: 5-year warranty when installed by an authorized AudioControl dealer.

In a typical outdoor audio build, the ACX-650.5 powers four speakers with strong, consistent output and uses a bridged mono channel to support a dedicated woofer, all while surviving wet environments. The crossover options and bass management help align woofers and tweeters for cohesive imaging, and the installer-friendly wiring simplifies retrofits or new installs alike.