Sundown Audio HZ-1000 Horizon Series Mono Sub Amplifier — 700 Watts RMS x 1 at 2 Ohms
The Sundown Audio HZ-1000 from the Horizon Series is a compact Class D mono subwoofer amplifier engineered for powerful, clean bass in tight spaces. Its heavy-duty aluminum heat-sink chassis ensures efficient cooling and stable performance during high-output sessions. Perfect for car audio enthusiasts, this amp delivers controlled power, reliability, and space-saving design for premium sound systems.
Features:
- Mono subwoofer amplifier
- 350W RMS x 1 @ 4Ω, 700W RMS x 1 @ 2Ω, 1000W RMS x 1 @ 1Ω
- Variable low-pass filter: 50–250 Hz (12 dB/octave)
- Variable subsonic filter: 10–50 Hz (12 dB/octave)
- DC audio sensing or wired remote 12V turn-on
- Wired remote level control included
- Efficient Class-D amplifier design
- Preamp and speaker-level inputs for flexible installation
- 4-way protection circuit: thermal, voltage, short circuit, DC offset
- Requires 4-gauge power/ground leads and 100A fuse (not included)
- No onboard fuses; use 100A in-line fuse when installing multiple amps
Specifications:
RMS Power Output: 350W x 1
Power at 2 Ohms: 700W x 1
Power at 1 Ohm: 1000W x 1
Minimum Impedance Unbridged: 1Ω
Signal-to-Noise Ratio: 95 dB
Input Voltage: 14.4V
Amplifier Class: D
Built-in DSP: No
Remote Control: Yes
Low-Pass Crossover: 50–250 Hz
Low-Pass Slope: 12 dB/oct
Bass Boost: No
Fan Cooled: No
Fuse Rating: 100A
Speaker Level Inputs: Yes
Preamp Outputs: No
Dimensions: Width 9-13/16", Height 2-1/4", Depth 4-5/8"
UPC: 810111135559
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
From Our Community
Real Installs. Real Sound.
See what enthusiasts are saying — straight from their builds
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.
