Sundown Audio HZ-1000 | Horizon Series 1000W RMS Monoblock Amplifier

Powerful. Precise. Built to Perform.

The HZ-1000 is everything a mid-tier mono amplifier should be — refined, reliable, and ready to deliver 1000 watts of clean RMS power at 1 ohm. Whether you're upgrading your daily driver, adding a second amp to your system, or running a single sub with serious authority, this Horizon Series amp brings the power you need without the bulk or complexity you don’t.

Optimized for real-world installs, the HZ-1000 includes high-level input compatibility, DC Sense for factory integration, and a variable subsonic and low pass filter to keep your low-end crisp and controlled. Its 4-way protection circuit monitors heat, voltage, shorts, and offset, so you can push your system harder without stressing your equipment. The included remote bass knob makes real-time adjustment simple — dial it up when the bass drops, or fine-tune your system from the front seat.

From sealed to ported enclosures, factory to custom setups, the HZ-1000 gives you versatility and strength in a compact Class D platform that’s easy to install and built to last. It’s the definition of clean power, simplified.

Specs:

• RMS Power @ 14.4V
  • 1 Ohm: 1000W
  • 2 Ohm: 700W
  • 4 Ohm: 350W
• Low Pass Filter: 50Hz – 250Hz
• Subsonic Filter: 10Hz – 50Hz
• Input Sensitivity: 6V Max
• Signal-to-Noise Ratio: 95dB
• Fuse Rating: 100A
• Dimensions: 9.75" x 4.63" x 2.2"
• Weight: 3.42 lbs (1.55 kg)
• Wired Remote Included