Hey Bradz, I'm using the #3 Black Diamond Racing Cones [BDR] under my CD player and have noticed a warming of overall tone. The #4s are for a more neutral sound. BDR even recommends mixing the #3 and #4 cones in different combinations until you find something that works for you. I hope that helps.
What tube for a Sigma dac?
Looking for suggestions on which tube to use in my Sigma 24/96 dac. My system:Sony 7700 dvd, CAL Sigma 24/96 dac, Morrison pre, Odyssey amp, and Magnepan mmg's. Someone mentioned a Raytheon nos 5751 or a Mullard nos 12ax7. Current tube is a Ruby 12ax7. Regards, Brad