Sundown Audio HZ-1000 Horizon Series Mono Sub Amplifier — 700 Watts RMS x 1 at 2 Ohms

The Sundown Audio HZ-1000 is a mono Class D amp built to drive your speakers or subs with 700W RMS.

At a glance

• Power: 700W RMS
• Channels: Mono
• Class D

Details

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

Why buy from Stereo-Needs

• Free shipping on every order
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• Not sure it fits your vehicle or system? Call or text 951-497-3497 before you order