The brand new QUANTUM QL amplifiers in the ESX category are technically the smaller versions of the QE models. Ideally, they can be used in areas with very limited installation space. They are also emission-free and, like the larger QE models, feature the best Class-D technology, which provides excellent performance, sound quality, and tuning options.

• Modern Class D technology with very high efficiency
• Selected and acoustically tuned components
• Massive aluminum heat sink
• Heavy aluminum side piece
• High Level inputs with Error Protection System
• Auto Turn-On, Ready Start/Stop
• MOSFET PWM-Supply, 3-way Protection System
• Compact Remote Bass

2-Channel Class D Digital Amplifier

• 500 Watts RMS Power Capacity
• 2 x 150/250 Watts RMS @ 4/2 Ohms
• 1 x 500 Watts RMS @ 4 Ohms bridged
• HP 10-500 Hz, LP 50-5000 Hz
• Bass-Boost 0-12 dB, Bandpass Function
• High Level inputs, Auto Turn-On function
• Compact Remote Bass
• Dimensions: 226 x 43 x 120 mm
• Efficiency up to 87%