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Acceptable hiss ?

Is is normal to hear absoultely NOTHING coming out of your speakers when no information is being passed through ? Or should there be a subtle hissing when your ear is close to the tweeter ? I'm getting a slight hissing, and am wondering whether or not this is acceptable. I am using Sonus grand piano fronts / center and Sonus Concertino Rear; driven by a B&k 307.
justy
avguygeorge
2,300 posts
 
I have tubes.If I hear any hiss,I got tube problems. Not sure how it goes for SS eqpt. Is the hiss equal for both speakers? All 5 speakers? By the way,nice speaker choice!
justy OP
19 posts
 
The hiss is louder from the left and right channels than is is from the center/rears. I have Linn Lk400 (dont ask) 6ft biwire cables going to the Left/Right; and custom made cables going to center/rear. The Linn cables are about 8 years old, could this be an issue ?
khokugo
122 posts
 
Justy, try to determine whether it is from the receiver. Connect right/left speakers to rear terminals, etc. If the noise comes from the same speakers, then, it's speakers or cable (or signal interference). But it is still possible in your case that it is normal, although I don't know how close your ear is when you hear hiss. In HT setting, you usually set the front two speakers louder than rears. That may be why you hear louder hiss from fronts. Anyways, in my case it was receiver and I think it's the prime suspect. BTW, If I don't hear it from listening position, I would not mind.
justy OP
19 posts
 
I hear it if my ear is 12 inches or closer...
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