Hi All,
I have a full Bryston setup. BDP-1, BDA-1, BP173, 7Bsst2, BHA-1, Bryston cables. I also have a Samsung TV connected to the BDA-1 using an optical cable. Speakers are Wilson Sasha-2.
Last night when listening to the TV at low volumes the volume suddenly and dramatically increased. It did not reduce until I quickly turned the BP173 volume control down. After this things returned to normal. Luckily this only damaged the resistors on one of the midrange speakers which I have been able to replace.
This sudden spike in volume also happened several months ago although I cannot recall if the TV was the source.
Hopefully, someone on this forum can help me understand what might be the cause of this.
Thanks
Terry
Hi Terry!
I think the issue is in the volume control of your BP-17. One other person here reported the same issue with their B-135 integrated which, I believe uses the same volume control. As far as I know, compared to BP-16 and B-100, the BP-17 and B-135 have a resistor-ladder chip handling the volume as opposed to a conventional volume potentiometer.
Though it's difficult to say what the problem is - it might be a glitch or it might be a malfunction that happens in certain circumstances, I've read on forums that this typically happens if the volume pot is used only seldom and at lower listening volumes and that using the pot regularly seems to help. You could rotate it a bit, from minimum to maximum, while no music is playing.
IMHO, this is a major long-term issue with electronically-controlled and digital volume controls - sometimes they behave erratically and a small oversight on the user's end can cause damage to speakers or headphones.
Even very elaborate volume controls that use physical resistors instead of an IC can sometimes be noisy. In such instances, rotating the pot usually resolves the issue.
Sorry I can't be of more help to you.
Cheers - Antun