| Re: 16 year old 2 Pi Speakers - Now getting static on newer amps [message #96855 is a reply to message #96852] |
Fri, 14 July 2023 21:12  |
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gofar99
Messages: 1969
Registered: May 2010
Location: Southern Arizona
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Illuminati (5th Degree) |
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Hi, Most curious. SMSL is a good company. I use one of their DAC and it it great. I find it hard to imagine that they would have amps that put out noise like you indicate. I would contact SMSL and ask them about it. I imagine that the amps are digital switch mode ones, but normally the frequency is way above audio and well filtered. Is it possible that something else in the system is also digital and it is resulting in a mix/beat issue and creating a sum and difference signal that is being amplified. Possibly something as simple as a nearby light dimmer or perhaps a power filter or PC attached to the system. I mention these possibilities as I once had a small digital amp attached to a video monitor and it was getting the feed from the CATV. The cable company came to the house and said that something inside was causing wideband interference on some non TV channels. They hunted it down to the amp. Removed and the interference went away. Keep us posted on what you find so we can help others if it comes up again.
Good Listening
Bruce
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