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ESX Audio
ESX QM400.2 2-Channel Class D Mini Amplifier
2-Channel
£199.99
Available to order
2-Channel
2 Channel
SKU 4251476403659
Manual included
Fitment
System planning support
Tech specs
Shown below
Manuals/downloads
Download linked
Warranty
Manufacturer backed
Plan the system before checkout
Check channel layout, power, impedance and DSP requirements before choosing wiring or speakers.
Why choose this product?
The ESX QM400.2 suits compact front-stage, rear-fill or small bridged installs where a full-size amplifier is difficult to place. Its Class D platform delivers 2 x 225W RMS at 2 ohm or 450W bridged output, with RCA/high-level inputs, Start/Stop readiness and onboard filtering for flexible system tuning.
Why choose the ESX QM400.2
2-channel Class D QUANTUM mini amplifier with 2 x 225W RMS at 2 ohm, 450W bridged output, RCA/high-level inputs via Molex, Start/Stop readiness, MOSFET PWM power supply, 3-way protection and compact bass remote control.
Technical specifications
Amplifier type: 2-channel Class D mini digital amplifier
Power output: 2 x 125W RMS at 4 ohm; 2 x 225W RMS at 2 ohm
Bridged output: 1 x 450W RMS at 4 ohm
Inputs: RCA and high-level inputs via Molex
Crossover: HPF 10-500 Hz; LPF 50-5000 Hz; bandpass mode
Power/protection: Start/Stop ready; MOSFET PWM power supply; 3-way protection circuit
Remote: Compact bass remote controller
Dimensions: 190 x 35 x 102 mm
Efficiency: up to 88%
Compatibility and support
For vehicle-specific advice, send your vehicle make, model, year, current factory audio setup and what you want to improve.
We reply by email or WhatsApp so you have the recommendation in writing.
Downloads
Download owner manual
Manufacturer documentation supplied where available.
Need fitment help?
Ask before ordering if the vehicle, wiring or DSP setup is unclear.
Send the make, model, year, factory audio setup and what you want to improve. We’ll reply in writing so you have the advice to refer back to.