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

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

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

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

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

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

Sonics 800X (Bryston 7) Hi-Fidelity IMAX Amplifier GREAT CONDITIONINCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 800X (Bryston 7) [ Listing is for 1 amp - however we have 8 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 800X is almost identical to a Bryston 7B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. Unit come with new 6x30mm 150V fast-blow fuses: The 800X is set up as a monoblock amp, (two mono channels within set up in push-pull configuration) and there are no switches to change from series or parallel. Inside are two identical power amplifiers set for bridge operation for 500 watts into 8 ohms or 800 watts into 4 ohms. Conversion to 2-channel stereo operation is possible by disabling the input module internally. Step-by-step instructions to convert the 800X to a stereo amp can be found below however we assume no responsibility for any issues/damage arising from modifying these amplifiers: https://www.audiocircle.com/index.php?topic=88518.20 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

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

Sonics 800X (Bryston 7) Hi-Fidelity IMAX Amplifier GREAT CONDITIONINCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 800X (Bryston 7) [ Listing is for 1 amp - however we have 8 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 800X is almost identical to a Bryston 7B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. Unit come with new 6x30mm 150V fast-blow fuses: The 800X is set up as a monoblock amp, (two mono channels within set up in push-pull configuration) and there are no switches to change from series or parallel. Inside are two identical power amplifiers set for bridge operation for 500 watts into 8 ohms or 800 watts into 4 ohms. Conversion to 2-channel stereo operation is possible by disabling the input module internally. Step-by-step instructions to convert the 800X to a stereo amp can be found below however we assume no responsibility for any issues/damage arising from modifying these amplifiers: https://www.audiocircle.com/index.php?topic=88518.20 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

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

3 of these have been sold. I only have 10 left. Please, after buying this item, check out my other listings for other Spectra Sonic modules and Triad transformers. I will always combine shipping to save you money__________________________________ Price listed is for one (1) Vintage original Spectra Sonics Model 101. I have 13 available. Buy one, or buy them all. They are $179.00 Each Preamp Card. No additional shipping for more then one purchased to the USA. 1 Vintage Spectra Sonics Model 101 Preamp Card. Very good clean condition. I removed these from the same piece of gear, they have been there all their life. Commonly used in the Spectra Sonics 101 & 110 Microphone Pre-Amplifiers. For the restorer of DIY Old School Sound. Hard to come by vintage gear being offered at a fair Buy it Now. All checked. Please see the many photos provided. I hope you can use this in your restoration. Please see my other items for other parts for and transformers from my warehouse including Western Electric transformers, Triad, UTC, Gates, RCA, and many others. . Everything should be checked by a qualified person before use. Buy one, or buy them all. They are $179.00 each Card.Very hard to find this many at a time. *****Shipping Special *****Shipping will be $6.60 to the USA. If you buy more then one, the rest will ship for no additional charge.No matter how many you purchase, shipping will be $6.60 to the US. International buyers please see calculator for shipping to your country. Being offered at a fair Buy it Now.

Sonics 800X (Bryston 7) Hi-Fidelity IMAX Amplifier GREAT CONDITIONINCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 800X (Bryston 7) [ Listing is for 1 amp - however we have 8 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 800X is almost identical to a Bryston 7B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. Unit come with new 6x30mm 150V fast-blow fuses: The 800X is set up as a monoblock amp, (two mono channels within set up in push-pull configuration) and there are no switches to change from series or parallel. Inside are two identical power amplifiers set for bridge operation for 500 watts into 8 ohms or 800 watts into 4 ohms. Conversion to 2-channel stereo operation is possible by disabling the input module internally. Step-by-step instructions to convert the 800X to a stereo amp can be found below however we assume no responsibility for any issues/damage arising from modifying these amplifiers: https://www.audiocircle.com/index.php?topic=88518.20 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

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

Sonics 600X (Bryston 4B) Hi-Fidelity IMAX Amplifier THIS WAS TESTED WHILE IT HAD ITS FUSES CHANNEL B WAS WEAKER AND THERE WERE ALMOST NO LOW FREQUENCIES FUSES AND FUSEHOLDER HAD TO BE REMOVEDSOLD AS-IS FOR PARTS/REPAIRNO RETURNS Sonics 600X (Bryston 4B) 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. ! PLEASE READ !UNDERSTAND WHAT YOU ARE PURCHASING:This is a genuine Sonics/Bryston amp but not operating properly and being sold for parts/repair. Unit does not include rear fuse holder.There are NO RETURNS ON THIS ITEM 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

Sonics 800X (Bryston 7) Hi-Fidelity IMAX Amplifier GREAT CONDITIONINCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 800X (Bryston 7) [ Listing is for 1 amp - however we have 8 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 800X is almost identical to a Bryston 7B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. Unit come with new 6x30mm 150V fast-blow fuses: The 800X is set up as a monoblock amp, (two mono channels within set up in push-pull configuration) and there are no switches to change from series or parallel. Inside are two identical power amplifiers set for bridge operation for 500 watts into 8 ohms or 800 watts into 4 ohms. Conversion to 2-channel stereo operation is possible by disabling the input module internally. Step-by-step instructions to convert the 800X to a stereo amp can be found below however we assume no responsibility for any issues/damage arising from modifying these amplifiers: https://www.audiocircle.com/index.php?topic=88518.20 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

Sonics 600X (Bryston 4B) Hi-Fidelity IMAX Amplifier THIS WAS TESTED WHILE IT HAD ITS FUSES CHANNEL B WAS WEAKER AND THERE WERE ALMOST NO LOW FREQUENCIES FUSES AND FUSEHOLDER HAD TO BE REMOVEDSOLD AS-IS FOR PARTS/REPAIRNO RETURNS Sonics 600X (Bryston 4B) 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. ! PLEASE READ !UNDERSTAND WHAT YOU ARE PURCHASING:This is a genuine Sonics/Bryston amp but not operating properly and being sold for parts/repair. Unit does not include rear fuse holder.There are NO RETURNS ON THIS ITEM 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

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

Please, after buying this item, check out my other listings for other Spectra Sonic modules and Triad transformers. I will always combine shipping to save you money__________________________________ Price listed is for one (1) Vintage Triad HS-66 Transformer. I have 17 available. Buy one, or buy them all. They are $249.00 Each transformer. No additional shipping for more then one purchased to the USA. 1 Vintage Triad HS-66 Matching TransformerI believe these are Gold Pin. Triads Highest Quality. Electrically same as an HS-56 but with a different shield can. Specs : 600/250/150/62.5 to 600/250/150/62.5, 10-30K. See labels for specs. Very good clean condition. I removed these from the same piece of gear, they have been there all their life. Commonly used in the Spectra Sonics 101 & 110 Microphone Preamplifiers. For the restorer of DIY Old School Sound. Hard to come by vintage gear being offered at a fair Buy it Now. All checked. Please see the many photos provided. I hope you can use this in your restoration. Please see my other items for other parts for and transformers from my warehouse including Western Electric transformers, Triad, UTC, Gates, RCA, and many others. . Everything should be checked by a qualified person before use. Buy one, or buy them all. They are $249.00 each transformer.Very hard to find this many at a time. *****Shipping Special *****Shipping will be $10.60 to the USA. If you buy more then one, the rest will ship for no additional charge.No matter how many you purchase, shipping will be $10.60 to the US. International buyers please see calculator for shipping to your country. Being offered at a fair Buy it Now.

Sonics 600X (Bryston 4B) Hi-Fidelity IMAX Amplifier THIS WAS TESTED WHILE IT HAD FUSES BUT CHANNEL A WAS WEAKER AND THERE WERE ALMOST NO LOW FREQUENCIES FUSES THEN WERE REMOVEDSOLD AS-IS FOR PARTS/REPAIRNO RETURNS Sonics 600X (Bryston 4B) 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. ! PLEASE READ !UNDERSTAND WHAT YOU ARE PURCHASING:This is a genuine Sonics/Bryston amp but not operating properly and being sold for parts/repair. Unit does not include rear fuse holder.There are NO RETURNS ON THIS ITEM 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

Sonics 800X (Bryston 7) Hi-Fidelity IMAX Amplifier GOOD CONDITION - YET ITS MISSING FUSEHOLDER FROM THE BACK PANEL (WITH ITS 2 SPARE FUSES) - SELLING FOR PARTS/REPAIR INCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 800X (Bryston 7) [ Listing is for 1 amp - however we have 8 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 800X is almost identical to a Bryston 7B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. Unit come with new 6x30mm 150V fast-blow fuses: The 800X is set up as a monoblock amp, (two mono channels within set up in push-pull configuration) and there are no switches to change from series or parallel. Inside are two identical power amplifiers set for bridge operation for 500 watts into 8 ohms or 800 watts into 4 ohms. Conversion to 2-channel stereo operation is possible by disabling the input module internally. Step-by-step instructions to convert the 800X to a stereo amp can be found below however we assume no responsibility for any issues/damage arising from modifying these amplifiers: https://www.audiocircle.com/index.php?topic=88518.20 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

Sonics 800X (Bryston 7) Hi-Fidelity IMAX Amplifier GREAT CONDITIONINCREDIBLE SOUND FROM BRYSTON COMPONENTSREMOVED FROM LOCAL MUSEUM DURING RENOVATION Sonics 800X (Bryston 7) [ Listing is for 1 amp - however we have 8 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 800X is almost identical to a Bryston 7B - they were basically rebadged with Sonics front/back plates with slightly modified circuitry for their use with IMAX systems. Unit come with new 6x30mm 150V fast-blow fuses: The 800X is set up as a monoblock amp, (two mono channels within set up in push-pull configuration) and there are no switches to change from series or parallel. Inside are two identical power amplifiers set for bridge operation for 500 watts into 8 ohms or 800 watts into 4 ohms. Conversion to 2-channel stereo operation is possible by disabling the input module internally. Step-by-step instructions to convert the 800X to a stereo amp can be found below however we assume no responsibility for any issues/damage arising from modifying these amplifiers: https://www.audiocircle.com/index.php?topic=88518.20 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

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