Designed for bigger builds and subwoofers that demand more, the Sundown Audio Horizon HZ-1500 Monoblock Amplifier delivers up to 1,500 watts RMS at 1 ohm with low distortion and high efficiency. It's the top dog of the Horizon Series mono lineup—made to push larger woofers or multiple drivers with clean, relentless power that stays cool and sounds tight. It's built the Sundown way: to deliver clean power, take abuse, and perform.
The HZ-1500 provides serious authority in a compact Class D platform:
RMS Power Output @ 14.4V:
1500W @ 1 Ohm

800W @ 2 Ohm

450W @ 4 Ohm

Dimensions: Manageable size at 11.25" x 4.63" x 2.2".

Signal-to-Noise Ratio (SNR): Excellent 95dB rating for clean audio output.

Achieve simple yet precise control over your low end in any setup:
Factory Integration: Features High-Level Input and DC Sense turn-on, giving you full flexibility for installs in both factory and aftermarket environments.

Low Pass Filter (LPF): Variable 50Hz – 250Hz for blending your subwoofer perfectly.

Subsonic Filter: Variable 10Hz – 50Hz to protect your woofers from damaging frequencies.

Control Included: The wired remote bass knob provides simple, real-time control from the driver's seat.

For builders who want one amp that hits hard, runs cool, and doesn't fail, the HZ-1500 is the clear choice. Its robust 4-way protection system monitors heat, voltage, shorts, and DC offset, while the high 140A Fuse Rating ensures stable performance. This amplifier is built to push your system harder without stress.