Quest QA Series power amplifies are built to work hard inthe tough environment of pro audio.
Industrial spec multi-speed fans and generous heat sinks will keep the output stage cool even if the amplifier is installed in a dusty and poorly ventilated area.
Service and maintenance is easy as the internal architecture is laid out for easy access by a qualified technician.
The sonically superior output stage is composed of a generous abundance of output devices for greater electronic stability and sonic fidelity.
QA series amplifiers are manufactured to a standard accepted as desirable practice for a concert standard power amplifier.
Heavy gauge welded 16-gauge steel chassis with vibration proof fittings, and an emphasis on over-engineering, guarantees years of trouble-free service in the most demanding environments.
Quest set about a design and layout for easy service, noteasy manufacture.
A minimum of disassembly is required for testing and maintenance meaning lower operating costs and longer amplifier life.
QA1004 Stereo Power Amp
QA2004 Stereo PowerAmp
|2x 575-w at 4O||2x 870-w at 4O|
|290-W per channel @ 1kHz at <0.1% T.H.D. both channels driven||490-W per channel @ 1kHz at <0.1% T.H.D. both channels driven|
|575-W per channel@ 1kHz at <0.1%T.H.D. both channels driven||870-W per channel @ 1kHz at <0.1% T.H.D. both channels driven|
|<0.1%@250-W per channel from 20 HZ to 20kHz||<0.1%@400-W|
per channel from 20 HZ to 20kHz
|2O - Audio signal / 4O - Signal wave|
|+5 to -15 from 20 Hz to20kHz|
|20 kO, balanced; 10 kO, unbalanced|
|Two temperature dependant variable speed 80mm high-output DC fans|
|Two front panel attenuators, rear panel mode switch and gain select switch|
|Linkwitz-Reily (24 dB/Octave): Off/35/80 Hz|
|Linkwitz-Reily (24 dB/Octave): Off/80/110Hz|
|29 dB or 24 dB||32 dB or 26 dB|
|>-60 dB @ 1kHz at rated power @ 8O|
|>-105 dB, "A" weighted referenced to rated power @ 8O||>-107 dB, "A" weighted referenced to rated power @ 8O|
|>500:1 @ 20Hz - 1kHz||>700:1 @ 20Hz - 1kHz|
|Two clip, two signal presence, one active status, two protection|
|Thermal, DC, turn-on bursts, subsonic, incorrect loads|
|XLR . Speakon . 240/230Volt 16 amp IEC mains|
|Cold Steel Rolling + Machined aluminium front panel|
|89mm x 483mm x 496mm|