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Post subject: Super sonic 60,, Trebly effect loop
Posted: Thu Nov 01, 2012 2:50 pm
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Joined: Tue May 17, 2011 12:19 pm
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I have a super sonic 60 , no longer under warranty , I took it to 2 amp repair guys , no luck.
Problem is whenever I engage the effect loop , it sounds trebly ,like I turned up the treble from 4 to 6(very annoying ).. I've used different cables, effects,no effect at all, adjusted the send and receive for an hour , changed the 2 tubes that drives the loop.no luck--any ideas ?


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Post subject: Re: Super sonic 60,, Trebly effect loop
Posted: Thu Nov 01, 2012 6:41 pm
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Joined: Tue Jun 29, 2010 1:20 pm
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Location: Indiana
Hi nezam,

What tubes have you used for the loop? This might be a good place to try a 5751 for V4, and maybe even one for V5. The Cathode follower position (V4) is usually sensitive to the type or brand of tube used, and some tubes just don't sound right in the Cathode follower position. Position V4 of this amp just might be one of the few places that a 12AU7 could work well, JAG though, haven't tried one in a Cathode follower position. :idea:

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