Sundown Audio HZ-80.4 Horizon Series 4-Channel Amplifier — 80 Watts RMS x 4
The Sundown Audio HZ-80.4 from the Horizon Series is a compact 4-channel full-range amplifier designed to deliver clean, controlled power in tight spaces. Its Class D efficiency and heavy-duty aluminum heat sink keep the amp cool and stable even during high-output sessions. Perfect for car audio enthusiasts who want reliable performance without sacrificing space.
Features:
- 4-channel car amplifier
- 80W RMS x 4 @ 4Ω
- 130W RMS x 4 @ 2Ω
- 260W RMS x 2 @ 4Ω (bridged)
- Variable high- and low-pass filters: 27–250 Hz (12 dB/octave)
- Class D amplifier technology
- Heavy-duty aluminum heat sink
- Preamp and speaker-level inputs
- Set-screw speaker terminals accept up to 10 AWG wire
- Requires 8 AWG power/ground leads and 50A fuse (not included)
- Wiring and hardware not included
Specifications:
RMS Power Output: 80 W x 4 channels
Power at 2 Ohms: 130 W x 4 channels
Bridged Power: 260 W x 2 channels
Minimum Impedance (Bridged): 4 Ω
Minimum Impedance (Unbridged): 2 Ω
Signal-to-Noise Ratio: 95 dB
Input Voltage: 14.4 V
Amplifier Class: D
Built-in DSP: No
Remote Control: No
Low-Pass Crossover Frequency: 27–250 Hz
Low-Pass Slope: 12 dB/oct
High-Pass Crossover Frequency: 27–250 Hz
High-Pass Slope: 12 dB/oct
Bass Boost: No
Fan Cooled: No
Fuse Rating: 50 A
Speaker Level Inputs: Yes
Preamp Outputs: No
Width: 7-7/16 in
Height: 2-1/4 in
Depth: 4-5/8 in
UPC: 810111135528
Free shipping is available within the 48 U.S. states. Orders placed before 11 PM ET are typically processed the next business day and arrive within 5–8 business days. Tracking information will be provided as soon as your order ships.
Need to make a change to your order? Contact us within 24 hours of purchase, and we'll be happy to help. Please note that orders already processed for shipment cannot be canceled.
1-Year Limited Warranty: As an authorized dealer, we provide a 1-year limited warranty covering manufacturer defects in materials and workmanship under normal use. The warranty does not cover physical damage, misuse, improper installation, or normal wear and tear.
Customer Support : 9:00 am to 5:00 pm
Email: info@eliteautogear.com
For technical support questions, contact us at cs@eliteautogear.com
Phone: (877)-215-8187
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Clean Power, Properly Delivered
Amplification That Holds Up Under Load
Stable Power Delivery
Built to hold its rated output under real load, so volume stays clean instead of falling away when the bass hits.
Protection Built In
Thermal, short-circuit and impedance protection shut the amp down safely rather than letting it fail.
Tuning Control
Onboard gain, crossover and bass controls let you match the amp to your speakers or subs instead of guessing.
Install-Ready
Standard terminals and mounting points make it straightforward to fit with the correct amp kit and fusing.
