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About the Quattro
The Audion Quattro is a high-end, hand-built stereo preamplifier featuring pure Class A operation and a fully hard-wired audio circuit using solid silver wiring and specially selected components such as tantalum resistors. It includes a moving coil (MC) phono stage capable of handling the most sensitive cartridges and four line-level inputs plus an MC input. The design emphasizes simplicity and superb execution, with only four tubes in the entire signal path and a dual-mono construction with separate power supplies using polypropylene capacitors. The Quattro offers outstanding transparency, lightning-fast response, and exceptional resolution, delivering a fluid and controlled soundstage with seamless roll-off and convincing depth. It is available in two versions: a 2-box and a 4-box configuration, with 17 and 21 active power supply stages respectively. The chassis is made of black powder-coated aluminum with a mirror-finished stainless steel top plate and badge. The phono stage uses a step-up transformer-less design for speed and fluidity without matching concerns. It is widely regarded as one of the finest stock preamplifiers ever made, praised for its sonic performance and build quality.
Specifications
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