Sonics 600X (Bryston 4B) Hi-Fidelity IMAX Amplifier GREAT CONDITIONINCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 600X (Bryston 4B) [ Listing is for 1 amp - however we have 2 units total available ] Overview: Sonics was the American company that supplied the audio systems for the IMAX & OMNIMAX Theaters. Their amplifiers were built by the renowned Bryston in Ontario Canada and Sonics added their front & rear panels along with input circuitry. Over the years these amps have found their way into the consumer/used market and audiophiles jump at the opportunity to own one of these legendary amplifiers. The Sonics 600X is almost identical to a Bryston 4B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. The Sonics 600X is a three channel power amplifier with VHF/HF/LF crossover. It is rated at 120 watts/channel RMS @ 8 Ohms and 200 watts/channel RMS @ 4 ohm. The two main channels can be bridged for 400w mono output @ 8 ohm. As a triple-mono amp, all three channels are in one chassis, and each channel has their own toroidal power transformer and power supply capacitors. The Plitron tranformers were custom-made for Bryston (82 VCT @ 2.75A, or 225 watts). The power caps for each channel consist of two 10,000µ, 63V capacitors. The rail is ± 55 V and each channel has 30.5 Joules of power supply energy storage. The back panel has a detachable grounded (three-prong) power receptacle, (1) XLR female input, XLR male looping output for LF/subwoofer, and (4) post/banana jacks for +/- on each of the two main channels. Unit come with new 6x30mm 150V fast-blow fuses: UNDERSTAND WHAT YOU ARE PURCHASING:While we cannot guarantee any amp performs 100% as it did when it left Brystons manufacturing facility, each unit has been tested for power handling, clipping, and clean audio on each channel. Some audiophiles choose to send their amps to Bryston for full refurbishment (contact Mike Pickett @ Bryston for details)If you would like us to ship directly to Bryston we are happy to coordinate, provide full tracking info, and save you the additional shipping costs. If a return is authorized, the buyer will assume all return shipping costs. These things are HEAVY. Additional Info: A Bryston by any other name... https://www.audiocircle.com/index.php?topic=88518.0 Reverb.com - Sonics (Bryston) Power Amplifiers https://reverb.com/item/9701077-sonics-bryston-power-amplifier-800x-mono-500w-8-or-800w-4 Sonics amps by Bryston https://www.audiocircle.com/index.php?topic=139044.0