SoundQubed Q1-8000 18v Q-Series Monoblock Amplifier

Product Overview

Build a high-output subwoofer system with the SoundQubed Q1-8000 Q-Series monoblock amplifier. It delivers 8,000W RMS at 1 ohm and 14.4V, with a listed output of 10,000W RMS at 1 ohm and 18V for systems built to support that voltage.

Its 22.3-inch chassis combines machined end caps with a factory plexi backing. The amplifier is designed for high-output daily systems and SPL builds.

Key Features & Benefits

• Adjustable subwoofer controls: Set the low-pass filter from 20–200 Hz, bass boost from 0–6 dB at 45 Hz, and infrasonic filter from 10–50 Hz.
• Strappable design: Link two Q1-8000 amplifiers in a master/slave setup for a combined 16,000W system at 2 ohm.
• Three 1/0GA power inputs: Multiple input terminals support the multi-run wiring required by this amplifier’s electrical demands.
• Protection features: Thermal, overload, DC output, short circuit, voltage input, and clipping protection are included.
• Q-Series construction: A Korean Half-Bridge board, heavy-duty printed circuit board, and surface-mount components form the amplifier’s stated design.

Technical Specifications

Why Choose This Product?

The Q1-8000 combines high power ratings with adjustable crossover and infrasonic controls, giving you options for tuning a subwoofer system to its enclosure and intended use. Its 96% efficiency rating at 4 ohm and damping factor of 336 are listed alongside its output specifications.

The supplied pairing guidance describes use with high-power subwoofers in the 2,000–8,000W RMS range, including SoundQubed HDX and HDS series models wired to a 1Ω final load. It also names the HDX3.2, HDX4.2, and HDS3.3 as suggested matches, and separately recommends subwoofers rated at 1,500W RMS or more.

Installation & Compatibility Notes

This amplifier requires a substantially upgraded electrical system. The stated minimum includes a 250+ amp high-output alternator, upgraded under-hood battery, 500Ah AGM or 80Ah lithium reserve, Big Three wiring upgrade, multiple 0-gauge power and ground runs, and a dash-mounted voltmeter. Do not rely on the factory gauge or attempt to run the amplifier on a stock electrical system.

Consult a SoundQubed dealer or professional installer before purchasing. For ported SPL builds, the supplied guidance suggests setting the low-pass filter between 50–80 Hz and engaging the infrasonic filter below the enclosure’s tuning frequency. Confirm the planned final impedance and electrical capacity with your installer.

Frequently Asked Questions

What is the Q1-8000’s rated power?

It is rated at 8,000W RMS at 1 ohm and 14.4V. The listed rating is 10,000W RMS at 1 ohm and 18V.

Can I connect two Q1-8000 amplifiers?

Yes. Its strappable master/slave connectivity allows two units to form a combined 16,000W system at 2 ohm. The electrical system must support both amplifiers.

What subwoofers are suggested?

The supplied recommendations include SoundQubed HDX3.2, HDX4.2, and HDS3.3 models, as well as high-power subwoofers wired to a 1Ω final load. Check the subwoofer ratings and intended final impedance for your setup.

What electrical upgrades are required?

The stated minimum includes a 250+ amp high-output alternator, upgraded under-hood battery, 500Ah AGM or 80Ah lithium reserve, Big Three wiring upgrade, multiple 0-gauge power and ground runs, and a dash-mounted voltmeter.

What tuning controls does it have?

It has a 20–200 Hz low-pass filter, 0–6 dB bass boost at 45 Hz, and a 10–50 Hz infrasonic filter.

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