What's wrong with my Cal Delta/Sigma?


I recently purchased this transport/dac combo. Help me upgrade this set up. My soundstage is muddy, highs and mids are veiled, bass is punchy, and I am not getting that tube "glow" that I expected to get from using this set up.

My amp/pre is Aragon 8002/Nakamichi Ca-7a, Speaker is KEF 103/4, cables are AQ Emeralds and Argents, and using a Monster reference2 as digital coax between the dac/trans (recently ordered a silverserpent from bettercables.com yet to be received).
yohjixme
I reinstalled my stereo today. I gave it my best effort to separate the audio and power cables, I've cleaned all the contacts with an alcohol solution (eye make up remover has amazing amounts of alcohol presents, and many differnt types of alcohol too). I moved the transport/dac away from my power/pre amp. And, now, my system is free of everything it was plagued by. Thanks for all your help!
BTW, Monster reference2 is not a bad digital coax. Beats the hell out of the Monster datalink100 I was using.
Good to hear that it just needed a little tender care. I have to do the same thing to our bedroom system that has been laying around in pieces for the last month.
Just wanted to share, I received my Silver Serpent in the mail today from BetterCables.com. It's installed, and I am wreaking the benefits, BIG TIME!! My system now is producing "AIR", "TEXTURE", and probably some hateful neighbors because their is more bass that seems to go deeper with more stress (excitement).

Yah, Yohji is now Viggen.
Viggen, if you're enjoying the cable that much, you're probably playing your system louder than usual. And I'm sure the neighbors appreciate that too. :•) Have fun and I'm glad everything is working out.
Oh, I don't know Gunbei, I guess I had the attenuator a few notches clockwise more than I usually have it = )

The cable isn't burned in yet, so there is still traces of grain in the highs and the lows can be more liquid.

I, also, just ordered a Mapleshade powercord, a LAT powercord, and two pairs of Mapleshade clearview ultrathin interconnects. I am not sure what components I will be using the powercords on, but I will play around, and purchase more if I like them. And the ultrathin will compete with my Emeralds for playing time.

Eversince I stumbled onto this Audiogon, my bank account has been suffering, and I've been devoting more time websurfing to research on product I never heard of. I used to think I knew it all, but this past week has been an experience, I've learned a lot, sorta like summer school.

One more question, I opened up my Sigma today, and I found the tube to be a Tesla ecc83 12ax7. Is that like a "good" tube? Thanks Audiogon members!