QL600.4 (24V)

4-Channel Class D Digital Amplifier

The QUANTUM QL amplifiers in the ESX Portfolio are technically the small siblings of the QUANTUM QE models. Ideally, they can be used where the installation space is very tight. They are also emission-free and, like the large QE models, have the finest Class D technology on board, which leaves nothing to be desired in terms of performance, sound quality and setting options. The QL models are also coming with the space-saving remote control. The 24V versions can be operated in trucks and coaches with a 24 volt electrical system.


  • Advanced Class D Technology with very high Efficiency
  • Selected and audiophile tuned Components
  • Massive Aluminum Heatsink
  • Heavy lateral Die-cast Parts
  • High Level Inputs with Error Protection System (EPS)


  • Auto Turn-On Function
  • Start/Stop Ready
  • MOSFET PWM Power Supply
  • 3-Way Protection Circuit
  • Compact Bass Remote Controller


4-Channel Class D Digital Amplifier

4 x 100/170 Watts RMS @ 4/2 Ω

2 x 340 Watts RMS @ 4 Ω bridged

HPF 50-5000 Hz (CH1/2)

HPF 10-500 Hz (CH3/4)

LPF 50-5000 Hz (CH3/4)

Copy Mode CH3/4 > CH1/2

Bass Boost 0-12 dB

Bandpass Function

Input Selector

Dimensions 226 x 43 x 120 mm

Efficiency up to 86%

€ 299,00

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

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