michaela ...
I'm running the factory stock tubes at this point. I'll be hitting Upscale Audio for new tubes soon. Its due.
Replacing the stock fuses with the SR Black fuses transforms the player from an excellent CD player into something that is much more analog like in nature. Redbook CD's, well recorded ones anyway, really come to life in a very organic way. Everything we as music lovers like is improved. A wider, deeper sound stage with a naturally silent background. BUT, the most important thing is the music and how its reproduced.
Also, try putting the tube dampening rings up as high on the tubes as possible without the top one falling off. Be sure that both tube rings are compressed together as much as possible too. This is a free, simple tweak for all ARC electronics where the small tubes use the two tube dampening rings. Its not a subtle improvement at all. Clarity is much improved with this tweak.
mitch ...
I haven't noticed any exaggerated bass from my player. I use it in balanced mode with some very high end cables. Plus the SR Black fuses. The bass I get is very natural and musical. I'm talking about acoustic bass like you'd hear live in a jazz group. Ray Brown is right there in the room. On organ or timpani's its really good too. Goes very deep and presents an articulate recreation of bass notes.
I've not heard the CD-9 ... but I hear very good things about it. From what I'm told, its even more analog-like than all those that came before it. Its on the bucket list.
OP