SoundQubed Q4-2000 16v Q Series 4 Channel Amplifier

Product Overview

Power a front stage or multi-channel system with the SoundQubed Q4-2000 16V Q Series 4-channel amplifier. It delivers up to 325W x 4 RMS at 4Ω and combines digital amplification with Class A/B-like processing in a Class D footprint.

Its adjustable, bandpassable crossovers give you detailed frequency control from the amplifier itself. Use it for four stereo channels or bridge a pair of channels for a 4Ω load.

Key Features & Benefits

• Three power configurations: Choose 325W x 4 at 4Ω, 500W x 4 at 2Ω, or 780W x 2 bridged at 4Ω to suit your system layout.
• Adjustable crossovers: HPF and LPF ranges plus an X1–X10 multiplier let you set crossover points across all four channels.
• Selectable input mode: Choose 2-channel or 4-channel input to match your signal routing.
• Signal and speaker control: A 90 dB signal-to-noise ratio and damping factor of 100 support clean signal reproduction and controlled speaker movement.
• Protection circuits: Thermal, overload, DC output, short circuit, voltage input, and clipping protection help protect the amplifier.
• Installation hardware details: It has a 4GA power input, a recommended 120A fuse, Tiffany-style RCA inputs, and an oversized heatsink.

Technical Specifications

Why Choose This Product?

The Q4-2000 suits builds that need four amplified channels and flexible crossover control in one amplifier. Configure all four channels for a high-output front stage, or use channels 1 and 2 for front speakers and bridge channels 3 and 4 for a subwoofer.

Its Korean-built construction includes a standard plexi backing, oversized heatsink, heavy-duty printed circuit board, and surface mount component technology. The Q4-2000 shares a platform with the Q4-3200. The product information lists the Q4-3200 at 520W versus 325W x 4 at 4Ω for the Q4-2000, and specifies 0GA wiring and a 300A fuse for the Q4-3200.

Installation & Compatibility Notes

• Power wiring: The Q4-2000 requires 4GA power and ground wiring and a 120A fuse.
• Electrical system: A high-output alternator and upgraded battery are recommended for sustained high-power use at full output.
• Speaker loads: Minimum impedance is 2Ω in stereo and 4Ω when bridged. Do not bridge below 4Ω; the product information warns this can damage the amplifier.
• System planning: At 500W per channel, use component speakers with appropriate RMS ratings. Check amplifier placement and dimensions before installation.

Frequently Asked Questions

Can the Q4-2000 run a front stage and a subwoofer?

Yes. The stated configuration uses channels 1 and 2 for HPF-filtered front component speakers and bridges channels 3 and 4 for an LPF-filtered subwoofer at 780W x 2 bridged at 4Ω.

Do I need a separate DSP?

Not necessarily. Its bandpassable crossovers and X1–X10 frequency multiplier provide crossover control built into the amplifier. The product information says this can eliminate the need for a separate DSP in most builds.

What is the minimum speaker impedance?

The minimum is 2Ω per channel in stereo mode and 4Ω in bridged mode. Do not bridge the amplifier into a load below 4Ω.

What power wiring and fuse does it require?

Use 4GA power and ground wiring with a recommended 120A fuse. A high-output alternator and upgraded battery are recommended for sustained high-power use at full output.

What are the amplifier’s dimensions?

Overall dimensions are 13.2" / 337 mm long, 9.4" / 241 mm wide, and 2.8" / 73 mm high. The heatsink length is 11.8" / 300 mm.

What input options does it support?

The input mode is selectable between 2-channel and 4-channel signal routing.

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