Hi there,
I have a TA2020, dead quiet background. And then needed power.
I've taken smps supplies, MeanWell and Vicor, TK2050 amps, one from Sure and one from HiFiMeDIY, in a single center case or at the back of the speaker in dual mono:
I can't use anything, in all cases there is a hissing noise wich comes and goes randomly. Attenuator does attenuate it, so crancking volume means crank hissing :'(
BTW, that means the noise is taken prior to pot, isn't it? If so the amp not a concern here?
Tracking the noise would be great, I've recorded some at my tweeter, full volume and no source. There is also a light high pitch, but that does not annoy me. You can hear it changing and also coming and going.
http://atsh.free.fr/HissRecord.m4a
Also attached is what it "looks" like, in the middle the slient state.
The background pitch is around 10kHz, the terrible hiss a bit higher, like 12kHz.
All ideas or how-to track welcome, that's driving me crazy!
Matthieu
I have a TA2020, dead quiet background. And then needed power.
I've taken smps supplies, MeanWell and Vicor, TK2050 amps, one from Sure and one from HiFiMeDIY, in a single center case or at the back of the speaker in dual mono:
I can't use anything, in all cases there is a hissing noise wich comes and goes randomly. Attenuator does attenuate it, so crancking volume means crank hissing :'(
BTW, that means the noise is taken prior to pot, isn't it? If so the amp not a concern here?
Tracking the noise would be great, I've recorded some at my tweeter, full volume and no source. There is also a light high pitch, but that does not annoy me. You can hear it changing and also coming and going.
http://atsh.free.fr/HissRecord.m4a
Also attached is what it "looks" like, in the middle the slient state.
The background pitch is around 10kHz, the terrible hiss a bit higher, like 12kHz.
All ideas or how-to track welcome, that's driving me crazy!
Matthieu
