ESX QUANTUM QM500.4

With a compact size of just 190 x 35 x 112 mm, the three new ESX QUANTUM QM miniature amplifiers, including the ESX QUANTUM QM500.4 4-channel amplifier, impress across the board. The QM amps offer state-of-the-art technology in a small footprint and are solidly constructed throughout. All three amps are based on the slightly larger sibling models from the ESX QL series, but are more compact and significantly easier to install. Thanks to the high-level inputs with EPS and the automatic turn-on feature, they are also perfectly suited for integration into factory installations. Each model is 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 die-cast aluminum side panels
• High-level inputs with Error Protection System
• Auto Turn-On, Start/Stop Ready
• MOSFET-PWM power supply, triple protection circuit
• Compact bass cable remote control

Specifications:

• 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 mode CH3/4 > CH1/2
• Bandpass mode
• RCA/Cinch & high-level inputs via wiring harness
• Automatic turn-on feature
• Compact cable remote control for bass level
• Dimensions: 190 x 35 x 112 mm
• Efficiency up to 89%.