Cary SLI-80HS modifications

@pehare @decooney  Thank you for your very thoughtful input! I really appreciate that.  There’s only one tech in my local area who even works on audio equipment. I’ll need to do some searching.  And unfortunately the new SLI-80HS is only available WITH the solid state rectification. So there is no choice about that.

Decisions, decisions.  Cary currently has a nice sale ongoing.  Maybe I’ll get the new HS model and try to find a good tech for the old one. Then keep the one that I think sounds best.

The only thing nice about getting old is you don’t need to save as much money!

I have an SLI-80 Signature model with all the upgrades and it sounds excellent.  They are all worthwhile, but the hexfreds are definitely priority 1.  I also have an SLI-100 which has a similar character, but sounds a little better and packs some more watts although I never had difficulty driving speakers with the SLI-80.  It packs more punch than the watts might suggest like a lot of tube amps.

A short time ago I spoke with someone on the Cary sales team and they remarked the solid state rectification HS model still has the tube holography and bloom the Signature has.  (It would be interesting to find out).  They added going with solid state rectification took care of most of the reliability issues they had with the SLI-80.  I have fond memories of my F-1 in triode mode on my Coincident Partial Eclipse 2's.  Years ago Cary built a special F-1 that was triode only and direct coupled as I rmember.  

@somebike Thanks for your input about the upgrades! That’s very reassuring. The SLI-100 sounds better is interesting.  Could it be your room acoustics or the speakers match it better?  Hmm…  I’ve only considered the SLI-80HS because I can only raise my current SLI-80 volume to about 10 0’clock position or it’s just too loud. Perhaps the KT150s sound better than the KT88s.  I really like the Gold Lion KT88 in my SLI-80. 

@pehare The SS rectifier sound comment is also very reassuring because that was my biggest concern in this purchase.  Thanks!  

Also, I have a theory regarding the rectifier tube reliability problem.  I think it’s due to changing listening mode (UL - Triode) while at power.  I always thought that had to be hard on the rectifier tubes so I never did it.  After 8 problem-free years I started changing the mode while at power for convenience. It only took about 3 or 4 mode changes at power until I blew a rectifier tube and a fuse.  This happened twice. I stopped doing the mode changes at power and the problem stopped.  The tube blows didn’t happen at the exact same time I made the mode change. The tubes blew within a week or so afterwards.  Maybe just a two-time coincidence but I stopped doing it and the amp has been problem-free for almost 2 years.

@txp1 I do have a big listening room that is kind to extra watts when desired.  I should point out that the SLI-100 also has the upgrades and the difference is subtle.  I could drive speakers of varying efficiency with plenty of volume.  I do not think you will be disappointed by the SLI-80.  I also recommend triode mode in pure class A.  In my opinion, that's shine best.