The finest selected components

Variable phase controller: 0–180°

Inline high-pass crossover included

Installation diameter: 230 mm

interference is effectively reduced and audio signals are transmitted with precision

ESX QL800.4 Packaging unit:Single The finest selected componentsESX Quantum Series The compact QUANTUM QL amplifiers are technically the smaller siblings of the QUANTUM QE models. They are ideal for use where installation space is at a premium. 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 space saving remote control is also included with the QL models.