2. misc-audio
  3. 152498-86252

Help in minimizing hiss

I’m wondering if all hiss can be removed, particularly with highly efficient speakers.
The hiss in my system is audible from about 4-5’ away when it’s silent in the house.

All gear is on a dedicated line I installed with new 12/3 romex to the panel with a 20 amp breaker.
I’m using all quality power cables and XLRs.

Rig:
Oppo 105 - Schitt Freya + - Legacy Wavelet DSP - Pass Labs X260.8 - Legacy Valor (101 dB sens)

Thanks for any input you may have,Scott
simpleman68
simpleman68 OP
11 posts
 
Turned on the Pass amps first and there was almost no audible noise with my ear on the tweets
Then I turned on the Wavelet and the hiss came back but not full volume
Then the Freya in full tube mode and the hiss got a bit louder but not much
Approximation:The Pass amps are less than 10% of the hissThe Wavelet is about 60% of itThe Freya (surprisingly) is only about 30% of the hiss
Thanks again for all the help guys, it's greatly appreciated.I can live with a bit of hiss that is inaudible from 3' + but just want to be sure I'm doing all I can to keep the signal path clean/clear.Scott
audition__audio
1,493 posts
 
Let us know how the tubes help, but my fear is that these old stock GEs will increase the noise and you may find new noises which didnt exist before. Hope I am wrong.
simpleman68 OP
11 posts
 
@jsautter  Again I don't expect the tubes to quiet things down. I am rolling them for improved sonics.
I'm not sure there's much I can do to quiet down the Wavelet which seems to be making the lions share of the hiss.
trknomo
80 posts
 
I’m thinking that if you have a pair of Legacy’s flagship 80K speakers with their Wavelet processor which in my experience is extremely quite your first step should be contacting Legacy. They can help you trouble shoot this issue better than a forum and without you going crazy trying a million things and getting frustrated.
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