Wyred 4 Sound STP Se preamp tweaks and upgrades ?

Try better power cords, interconnects and vibration control (good set of footers).

Cheers!

sounds truly fantastic

Then why do you want to mess with it?You might end up with something that sounds totally different that you will not like.Just a thought.Good luck.

Tpreaves said it best. Why would you want to modify a preamp that "sounds truly fantastic," change the sound to something you can't predict, affect any future re-sale value, and, not be able to re-coup the modification cost?

Well, it could sound "better" than fantastic! That's the thing with audiophiles. How do you ever know for sure "that's as good as it gets"? I've had the system sounding great and then do something to muck it up. Then throw more money at it for different but not always better.

By all means, try a different power cord and different footers, different for sure but not necessarily better.

Normally I would be firmly in the do nothing camp. It already sounds fantastic, so why screw with it? However, after looking at your system and getting an idea of what you're trying to do, I say go for it! Go back to Cullen and explain to them that you want a maxed-out version of the preamp. I'd be surprised if they wouldn't work with you (assuming you put some money on the table). They're probably working on a Signature Mk2 version anyway. Keep us updated.