Cookie Consent by


The approximately palm-sized 2-channel mini power amplifier QM-TWO caused amazement right after the presentation among ESX fans and connoisseurs of the car hifi scene. The small powerhouse with a whopping 240 watts RMS output was immediately traded as an insider tip. After last year's improved V2 version with incredible 300 W RMS performance topped that again, ESX is now adding two more models in the QM class: The powerful QM-FOUR power amplifier is now available for 4-channel applications, who want to drive a separate subwoofer, can now use the new monoblock QM-ONE. Both power bars deliver a whopping 360 watts RMS and are visually perfectly matched. Modern and efficient Class D technology is used in all models, combined with EPS, top features and perfect sound characteristics. The QM-ONE monoblock is not only visually the perfect play partner to match the QM-FOUR. If a separate woofer is also to be fired, its area of application is clearly defined. With a full 360 watts RMS at 2 ohms, sufficient steam is provided, and the bass level can even be conveniently adjusted using the remote control.

  • Efficient Class D Amplifier with ultra-compact dimensions
  • Heavy die-cast heat sink with perfect cooling characteristics
  • Auto Turn-On Function
  • High Level Inputs with EPS, Start/Stop Ready
  • Adjustable Subsonic- & Lowpassfilter
  • Compact Bass Remote

QM-ONE € 199,00*

Mono Class D Mini Digital Amplifier

720 Watts Max. Output Power

1 x 215/360 Watts RMS @ 4/2 Ohms

LPF 50 - 250 Hz

Subsonic 10 - 40 Hz

Bass Boost 0 - 12 dB

RCA Inputs & Outputs

High Level Inputs with EPS

Auto Turn-On Function

Compact Bass Remote

Dimensions: 216 x 39 x 84 mm


Owner's Manual

* Manufacturer's suggested retail price, changes and mistakes reserved