Why is my Audio Research SP6-b noisy?


I have an Audio Research SP6b pre-amp and it is very noisy-has a very loud hiss.I do have it hooked to a very large
pair of altec lansing VOT horn loaded speakers.I have used
4-5 amps and it stills has the hiss.Is this normal?
I know the horns amplify the hiss because when I hooked it
up to my klipsch speakers it was not as noticable.
Any suggestions.I just replaced the tubes.It does it with
the new tubes and old tubes.Go figure.
Anyone else have this problem?
89vett
128x12889vett

Showing 1 response by 89vett

Thank's for the responses.I have new tubes in it and no
difference.The unit does sound incredible though.I
will talk to Audio Research.
Steve