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2-channel Class D amplifier, 2 x 140 WRMS @ 4 Ohm

description

Digital amplifier power has never been more compact and affordable: With a size of just 190 x 35 x 112 mm, the three new ESX QUANTUM QM miniature powerhouses are impressive across the board. The QM amps offer state-of-the-art technology in the smallest of spaces and are solidly constructed throughout. All three amps are based on the slightly larger sibling models of the ESX QL series, only slightly more compact and much easier to install. Thanks to the high-level inputs including EPS and the automatic switch-on function, they are also perfectly suited for integration into factory systems. Each model is also equipped with a compact bass level remote control.

Features:

  • Advanced Class D technology with very high efficiency
  • Selected and audiophile-tuned components
  • Compact aluminium heat sink and cast aluminium side panels
  • High-level inputs with error protection system
  • Auto turn-on, start/stop ready
  • MOSFET PWM power supply, 3-way protection circuit
  • Compact bass cable remote control

Technical data

  • 2 x 140/250 Watt RMS @ 4/2 Ω
  • 1 x 450 Watt RMS @ 4 Ω bridged
  • HP 10-500 Hz, LP 50-5000 Hz
  • Bandpass mode
  • RCA / RCA & high level inputs via cable harness
  • Automatic switch-on function
  • Compact cable remote control for bass level
  • Dimensions: 190 x 35 x 112 mm
  • Efficiency up to 88

Reviews

1 of 1 ratings

Average rating of 5 out of 5 stars


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1 Rating

20 June 2026 08:48 from Flo

Review with rating of 5 out of 5 stars

überzeugt Kompakt

Habe ihn an einem ESX DBX800Q und auf minimum Input gestellt, da dieser dabei schon mehr als genug Tiefgang liefert. 😂 Gut zu wissen: auch bei z.B. ausgewähltem Lowpass Filter sind beide Drehregler (High und Low) aktiv, daher bei z.b. Schalterposition auf LP BEIDE Drehregler ganz nach links. (zumindest in meinem Fall die beste Einstellung). Gern auch mal mit Frequenzsweeps und nem Frequenzanalyzer aufm Handy durchmessen, Surround und Virtual Sub bei Skoda machen da teils ganz merkwürdige Frequenzverschiebungen welche sich mit richtigem Sub echt komisch anhören.

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