Sundown Audio HZ-100.4 | Horizon Series 4-Channel Full-Range Amplifier (100W x4)

More Power. More Control. Better Sound.

Step up your system with the HZ-100.4, Sundown’s high-output 4-channel amplifier that delivers 100 watts RMS per channel at 4 ohms — or 170W x4 at 2 ohms. Whether you’re powering component speakers, pro audio drivers, or full-range coaxials, the HZ-100.4 gives you headroom to push your gear harder, with less strain and more sonic clarity.

This amplifier was made for audio lovers who want control. With fully adjustable HPF and LPF crossovers, you can run active or passive setups, bridge channels, or mix configurations. It’s built with high-level inputs, DC Sense, and 4-way protection, making it just as at home in factory integration as it is in custom builds.

If you're ready to take your highs and mids from average to outstanding, the HZ-100.4 gives you the tools and the power to make it happen — all in one clean, efficient package. 

Specs:

• RMS Power @ 14.4V
  • 4 Ohm: 100W x4
  • 2 Ohm: 170W x4
• High Pass Filter (CH1-4): 27Hz – 250Hz
• Low Pass Filter (CH1-4): 27Hz – 250Hz
• Input Sensitivity: Up to 6V
• Signal-to-Noise Ratio: 95dB
• Fuse Rating: 60A
• Dimensions: 8.63" x 4.63" x 2.2"
• Weight: 2.93 lbs (1.33 kg)