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The QX-280 accepts the Class-D quest

The QX-280 accepts the Class-D quest

The QX-280 accepts the Class-D quest

The QX-280 range consists of three separate 280W per channel models

Specifically designed for AV installations and high-fidelity sound applications, the QX-280 amplifier series can be adopted in both low-impedance and 70/100V line installations. The QX-280 range consists of three separate 280W per channel models available as single (1280), dual (2280) and 4-channel (4280) variants. Weighing between 4.5kg and 8.3kg, the Class-D amplifiers are housed in a compact, single rack chassis. The transformer-less outputs deliver full-range audio to all impedance loads from 4Ω to 70/100V systems, for which each amplifier is equipped with a thermally controlled cooling fan. While the individual amplifier channels can be controlled from a selectable 80Hz high-pass filter switch located on the rear panel, volume control is accessed from the front panel.

Manufactured in Australia and covered by a 10-year warrantee, the QX-280 amplifiers are equipped with an integrated limiter circuit. While functioning across the power range at an 89.5% efficiency rate, automatic standby functionality mutes an individual amplifier channel after no signal has been detected for 10 minutes. This puts the amplifier into sleep mode after 30 minutes, reducing the mains current draw to less than 0.5W per amplifier channel. Installations subject to inconsistent mains supplies further benefit as a result of the 85–265V AC operating range of the amplifier.



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