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I have bought WyWire Blue line interconnects and speakers cables. On the second day of listening my Bryston 4bsst2 has broken left channel. Any thoughts ?

Thank you.

intel DG31PR - Windows 7 - Straightwire USB - Berkeley USB interface - Straightwire digital - Mytek 8x192 dac - ASI liveline interconnect - Bryston 4BSST2 - ASI liveline speaker cable - USHER Be 718 - Foobar 2000 WASAPI player

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I have bought WyWire Blue line interconnects and speakers cables. On the second day of listening my Bryston 4bsst2 has broken left channel. Any thoughts ?

Thank you.

 

Please forgive me for asking such a basic troubleshooting question, but have you tried switching one end of the cables between channels to confirm that the problem lies with the amp and not the cables? Obviously, if the right channel appears 'broken' after the switch, the problem lies with the cable.

"Relax, it's only hi-fi. There's never been a hi-fi emergency." - Roy Hall

"Not everything that can be counted counts, and not everything that counts can be counted." - William Bruce Cameron

 

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That's a very nice amp. If the above mentioned doesn't fix it maybe a fuse(?). Worse comes to worse the 20 year warranty is nice. I am about 3 decades behind, but my fuses are behind the amp. Not familiar with the newer ones.

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Intel Thin-mini ITX

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I have tried to invert the interconnects between the channels but the sound always came out from the right channel only.

intel DG31PR - Windows 7 - Straightwire USB - Berkeley USB interface - Straightwire digital - Mytek 8x192 dac - ASI liveline interconnect - Bryston 4BSST2 - ASI liveline speaker cable - USHER Be 718 - Foobar 2000 WASAPI player

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Maybe some of this you have done when you say inversion.

 

Firstly, swap out the right and left interconnect. Will confirm both interconnects are working if you get right channel with either.

 

Next cross the interconnects. Feed right channel into left amp input and left channel into right input.

If sound then comes out the left only you have a bad channel in the DAC (assuming you are aren't using a pre-amp).

 

If still the right channel only, you will by now know, both interconnects are working, both channels of your Mytek are working.

 

Next swap speaker cables left channel in place of right and vice versa. If still right channel only you know speaker cables are good.

 

What is left is either speaker or amp is bad on left channel. So next cross speaker cables. Feed right speaker with left channel of amp and vice versa. If both speakers work, then it is the amp. Could be output (maybe it has internal fuses I don't know) or could be amp input. I notice they have switches for balanced and single ended input. Maybe work those back and forth a few times on the dead channel. Maybe a switch has gotten dirty or gone bad.

 

I suppose it could be some other oddity, but follow this sequence and you should be able to narrow down exactly where the problem lies.

And always keep in mind: Cognitive biases, like seeing optical illusions are a sign of a normally functioning brain. We all have them, it’s nothing to be ashamed about, but it is something that affects our objective evaluation of reality. 

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Again, forgive me for suggesting something very basic, but did you check to make sure that you didn't accidentally move the selector for the left channel from Balanced Input to Single Ended Input or vice versa on the rear panel of the Bryston when you installed the new cables? I did that at least once when I had my Bryston 14B-ST.

"Relax, it's only hi-fi. There's never been a hi-fi emergency." - Roy Hall

"Not everything that can be counted counts, and not everything that counts can be counted." - William Bruce Cameron

 

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