ESX QUANTUM QM500.4 4-Channel Digital Amplifier Class D

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 power plants are convincing all along the line. The QM amps offer state-of-the-art technology in a very small space and are all solidly constructed. All three amps are based on the somewhat larger sibling models of the ESX QL series, only a bit more compact and much easier to install. Thanks to the high level inputs including EPS and the automatic turn-on function, they are also perfectly suited for integration in factory sound systems. Each model is also equipped with a compact bass level remote control.

Advanced Class D technology with very high efficiency
Selected and audiophile tuned components
Compact aluminum heat sink and lateral die-cast parts
High Level Inputs with Error Protection System
Auto Turn-On, Start/Stop Ready
MOSFET PWM-Power Supply, 3-way Protection Circuit
Compact Bass Remote

TECHNICAL SPECIFICATIONS
4-Channel Class D Mini Digital Amplifier 500 Watts RMS Output Power

4 x 80/125 Watts RMS @ 4/2 Ω
2 x 250 Watts RMS @ 4 Ω bridged
HP 50-5000 Hz (CH1/2), HP 10-500 Hz (CH3/4)
LP 50-5000 Hz (CH3/4), Copy-Modus CH3/4 > CH1/2
Bandpass Mode
RCA  & High Level Inputs via wire harness
High Level Inputs, Auto Turn-On Function
Compact Bass Remote
Dimensions: 190 x 35 x 112 mm
Efficiency up to 89%

Owner´s manual
Test Review 

To ensure compatibility, we recommend that the parts pictured in our listing are compared to the actual parts in your vehicle before you make your purchase. If still unsure please contact us via email system so we can advise before you make your purchase.