Arc Audio Nighthawk 400 x 2 / 800 x 1 Non-DSP Amplifier When your system demands more power without added DSP complexity, the ARC Audio Nighthawk answers the call. Designed as the perfect companion to ARC Audio’s DSP-powered amplifiers like the Blackbird—and compatible with both current and future ARC DSP-equipped models—the Nighthawk delivers exceptional output, pristine sound quality, and installation flexibility, all in a matching chassis and industrial design for seamless system integration. This fully bridgeable, high-end Class D two-channel amplifier produces up to 800 watts bridged at 4 ohms mono (CTA-2006 compliant), with low-distortion performance that rivals far more expensive reference amplifiers. Whether you're powering subwoofers, midbass drivers, or full-range components in high-efficiency or high-demand systems, the Nighthawk delivers headroom, clarity, and control—even under the most demanding conditions. With balanced differential inputs, selectable stereo or mono configuration, and compatibility with ARC’s high-current speaker connection system, the Nighthawk is equally at home in motorcycles, marine builds, powersports environments, and audiophile-grade car audio systems alike. ARC’s under-promise, over-deliver philosophy is in full effect. While rated at 800 watts bridged, real-world output comfortably exceeds specification—giving installers and competitors the confidence to push harder without compromise. Designed for real-world use, it delivers full-range performance from 10Hz to 32kHz, maintains thermal stability from -4°F to 180°F, and supports start-stop compliant voltage down to 4.6V. Whether you're expanding an ARC DSP-based system or building a powerhouse standalone setup, the Nighthawk is built to elevate your sound—clean, powerful, and professional. Physical & Technical Specifications Total Amplified Output Channels 2 Stereo @ 4 Ohms 2 x 250 Watts Stereo @ 2 Ohms 2 x 400 Watts Stereo @ 1 Ohms 2 x 400 Watts Bridgeable Speaker Outputs Yes Bridged @ 4 Ohms 1 x 800 Watts Bridged @ 2 Ohms 1 x 800 Watts Other Channels @ 4 Ohms N/A Other Channels @ 2 Ohms N/A Other Channels @ 1 Ohms N/A Output Load Switch Yes Output Type Class-D Fuse Rating 3 x 30 Amp Idle Current 2.2A Amplifier Operating Voltage Range 10.5V - 17.1V (Start Stop Compliant to 4.5V) Adjustable Class-D Switching Frequency No Built-in Fan Cooled Yes - Variable Speed Ball Bearing Fan Input Channels (Analog) 2 Input Channel Selection N/A Input Channels (Analog Type) Balanced (RCA or Speaker Level) Input Sensitivity (Analog) 150mV - 5.25V Input Impedance (Analog) 10k Ohms Input Gain Type Analog Control (1 control for L/R channel(s)) Amplifier Slave In/Out (RCA) N/A Frequency Response 10Hz - 32kHz S/N Ratio @ 1 Watt -88dB Referenced @ 1 Watt (2V) S/N Ratio @ Full Power -113dB Reference to full power (31.5V) Auto-Sense Turn-on DC (BTL) Crossover Type Ch 1/2 HP, LP, Full (12dB Linkwitz-Riley) Crossover Range Ch 1/2 55Hz - 500Hz Crossover Type Ch 3/4 N/A Crossover Range Ch 3/4 N/A Crossover Type Ch 5/6 N/A Crossover Range Ch 5/6 N/A Bandpass Crossovers N/A Crossover/Front-end "Bypass" N/A Bass Boost N/A Onboard Diagnostics Yes - Protection: Thermal, Under/Over Voltage, Short, DC & More Clip Warning Lights Yes Compatible External Level Control N/A Dual External Control Use (Optional) N/A Remote Turn-on Pass Through Yes Cosmetic Trim Level N/A Dimensions 10.35"(L) x 6"(W) x 2"(H)