I agree with both posters, it is a classic, so I wouldn't perform any circuit modifications. If you want to upgrade perfomance you can certainly rebuild it with better caps, wires, reisitors, binding posts, RCA jacks, etc.
Jon Soderberg at VintageAmpRepair DOT net is the guru. Check with him. He rebuilt my Forte 5 and 40 pre. He uses great parts--Nichicon, Black Gate, etc.
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