Hi Team 2301 ... Is there a view of what work "just should be done" if a 2301 pair winds up on a tech bench, and tests/calibrates to "practically perfect"?
I sent off my B-2301/C-2301 pair for tech spa treatment. (OT alert, they were shepherding a Marantz 2325 that really needed work.) But the Sansui pair were pick-ups from an audiophile collector/collection and in truly mint, low hour, shape.
My tech writes: "Now, the Sansui units. Build quality is off the charts. In all honesty they look to be low hour and, of course, these models were built with top-tier components by default. Being from the mid-1980s it looks like they don't have ANY of the problematic small-signal semiconductors we always worry about.I see zero heat soaking or damage.
In all honesty (again), I don't think these really need a rebuild at this point. Cleaning, yes. They have a little dust and the controls need cleaning and conditioning.
If these were mine, I would do an analysis, adjustment, cleaning and then put them to work. I do see the stabilizing glue for the taller components so I would clean that up, but even that glue is still very flexible whereas it is usually brittle and flaking away in older units that have 2 more decades of heavy use. These look barely used.
You know...after thinking about it, I guess it would make sense to rebuild the phono and line amps in the pre-amp since they are covered and experience more heat, little that there is. Just something to consider.
Power amp, possibly the main power board/module even though they don't look to have much time on them. Also encapsulated with vents."
I'd welcome any suggestions on guidance to offer Todd. Accept what he proposes? Reasons to not touch if not broken? Other areas to get to while on the bench?
TY all!
Ez
