ESX Audio
ESX QM-FOUR-PP Quantum Plug & Play 4-Channel Mini Class D Amplifier
4-Channel
Why choose this product?
The ESX QM-FOUR-PP is the Plug & Play edition of the ultra-compact QUANTUM 4-channel Class D mini amplifier.
It is designed to reinforce factory systems that use a modern Quadlock radio connector. The loudspeaker plug insert can be removed and connected to the supplied 5 metre harness, then the amplifier only needs power to complete the installation.
Output is rated at 4 x 52 watts RMS at 4 ohm, 4 x 90 watts RMS at 2 ohm, or 2 x 180 watts RMS bridged at 4 ohm, with flexible filtering and high-level input support for OEM upgrade work.
Key features
- 4-channel Class D Plug+Play mini digital amplifier
- 5 metre adapter harness for Power Quadlock head units
- 4 x 52 / 90 watts RMS at 4 / 2 ohm
- 2 x 180 watts RMS bridged at 4 ohm
- High-pass and low-pass filters: 40 - 4000 Hz for CH1/2 and CH3/4
- Bass boost: 0 / 6 / 12 dB for CH1/2 and CH3/4
- 2CH / 4CH input selector
- RCA inputs and outputs via cable connector
- High level inputs with Error Protection System and auto turn-on
- Start/Stop Ready
- Clipping LED
- Dimensions: 216 x 39 x 84 mm
- Efficiency up to 86%
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
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.