DC Audio 1.2k 1200 watt Mono Block Amplifier

DC Audio 1.2k is a 1,200-watt mono block amplifier from the competition series, built for demanding subwoofer installs and linkable multi-amp configurations. It can run up to 16 volts for up to 1,500 watts and remains stable at 1 Ω per amp; when two units are strapped, it can deliver up to 3,000 watts from the pair.

• 1 Ω Stable: Designed to sustain operation into 1-ohm loads, enabling compact, high-power sub configurations.
• Output Power — 4 Ω / 2 Ω / 1 Ω: 4 Ω: 350 W x1 @ 14.4 V; 2 Ω: 700 W x1 @ 14.4 V; 1 Ω mono: 1200 W x1 @ 14.4 V; 1 Ω mono: 1500 W x1 @ 16 V. These figures define the real-world loudness you can expect at common subwoofer impedances and supply voltages.
• Linkable: Can be paired with another unit and strapped to reach up to 3,000 watts from a pair at 2 Ω.
• Wired Bass Knob Remote Control: External bass control to adjust output from the cabin for on-the-fly tuning.
• RCA Pass Thru: Pass-through RCA connection to simplify signal routing in a multi-amp system.
• 24 dB / Octave Crossover: Steep 24 dB-per-octave crossover for tight, phase-coherent subwoofer limiting.
• Variable Low Pass: Adjustable low-pass filter to restrict signal content to the sub range (35 Hz – 250 Hz).
• Variable Subsonic Filter: Adjustable subsonic filter to roll off ultra-low frequencies (10 Hz – 50 Hz) that can stress woofers.
• Input Sensitivity: 6 V to 0.2 V, allowing compatibility with a wide range of head-unit outputs.
• Frequency Response: 15 Hz – 270 Hz, catering to deep bass while maintaining system control.
• Signal-to-Noise Ratio: 100 dB, indicating a low noise floor in typical installations.
• Damping Factor: 100<
• THD @ 4 Ω: Less than 0.1%, representing clean amplification at moderate impedance.
• Fuse Rating: External 120 amp fuse for high-current protection.
• LED Status Lights: Power and Protect indicators for quick status checks.
• Heatsink Dimensions: 16.60" (419 mm) long, 9.38" (238 mm) wide, 2.35" (59.6 mm) high; substantial heatsinking supports sustained output.

The 1.2k excels in high-power subwoofer chains, whether as a single 1 Ω mono stage or as part of a strapped dual-amp setup to reach up to 3,000 watts total at 2 Ω. The adjustable filters and bass boost provide precise tuning for a clean, controlled low end in a single cabinet or larger trunk installations. Remote bass control, RCA passthrough, a robust 120 A fuse, and ample heatsinking make it well-suited for aggressive daily-driver systems and competition-grade builds alike.