I've tried several tubes, and just reached the end of the road with a pair of Mullard CV4004's. They exploded the soundstage in width and depth, and made the musicians sound like they emerged from behind a curtain. Absolutely the best money I've spent on the system.
Jolida JD-100A Tube Rolling
I recently added a JD-100A to my system and am wondering if any of your experiences were similar to mine. Out of the box this unit had about 15hrs on it, so it was basically new. I found the sound to warm, but very blurry in the details and imaging. Seeing all of the very positive posts about this unit, decided that I needed to allow more burn-in time for both me and the CDP and I'm very glad that I did. Even with the stock Jolida/WhateverTheStockTubesAre tubes, it really opened up to sound amazingly live with some of the detail coming back - Diana Krall "Only Trust Your Heart" became an amazing recording (recorded in live 2-track).
Deciding to start rolling tubes, I bought a pair of GE Triple Mica 5751's and immediately noticed a dramatic increase in detail - my wife woke up from a nap to comment on how much clearer the sounds were. I could hear Karen Carpenter's lip smacks on "A Song for You". But with this added detail, feel that a lot of the warmth of the stock tubes was gone.
I'd be very interested in any other experiences.
Thanks.
Russ
PS - Have a pair of Sylvania 12AX7A's in transit.
Deciding to start rolling tubes, I bought a pair of GE Triple Mica 5751's and immediately noticed a dramatic increase in detail - my wife woke up from a nap to comment on how much clearer the sounds were. I could hear Karen Carpenter's lip smacks on "A Song for You". But with this added detail, feel that a lot of the warmth of the stock tubes was gone.
I'd be very interested in any other experiences.
Thanks.
Russ
PS - Have a pair of Sylvania 12AX7A's in transit.