QUAD QC-24

Những điểm nổi bật của âm thanh hi-fi QUAD QC-24

For the analogue purist, the combination of a good valve amplifier and a good turntable is the closest possible approach to the original recording. There are two options for adding such functionality to our valve pre-amplifiers. A solid-state module is available for the standard QC-twenty four pre-amplifier (known as the QC-24 phono stage), which allows direct connection of a turntable with an internal switch to change between moving coil and moving magnet cartridges. This can be fitted as standard or added later.

Âm thanh hi-fi QUAD QC-24 chính hãng giá tốt nhất 

The Quad QC-24 preamp starts life as a modest yet nicely finished piece, measuring just short of 12 inches wide, standing 3½ inches tall and going about 8¾ inches deep (including rear connectors). Despite its modest dimensions, the Twenty-Four is a full-featured preamplifier sporting five line-level inputs (one marked 'phono' though there is no internal phono stage - and don't look for one coming soon either), two buffered tape loops and twin pairs of outputs to facilitate subwoofing or biamping; a nice touch. An IEC power inlet and a ground connection finish out the rear accoutrements.

The front panel features a large round volume control, the push-button power switch and the seven input selectors, each accompanied by an LED that turns golden amber when selected. Directly beneath the volume control is a sliding switch to control left/right balance. It has a center detent but is otherwise continuously variable and said to alter balance offset by up to 6 dB.

Inside, the QC-24 is claimed to use a "radically new and functionally simple audio circuit and features relay input switching to preserve signal purity". Tube complement is a single tiny 6111WA twin triode said to have a life of 60,000 hours. Quad specifies a frequency response of 5 Hz-50 Hz (+0 dB/-0.5 dB), hum and noise >80dB and recommends a minimum load of 50KOhms.