This thread got me wondering about my tube compliment. In the context of my system, these are the changes I made today while listening to Elvis Presley "Live From Memphis" Speakers Corner,. The tube orientation I previously mentioned had a little "spotlight" effect. I had previously used (2) 60's Seimens in V2 @ V3, then went for the Mullard in V2. The Mullards are warm with nice bass, however they are not the greatest for transparency/dynamics. This was a nice compliment to the other tubes, but too much of a good thing. Trying another Mullard in V3 produced a even warmer sound that I'm not very happy with. I then left one Mullard in V2, @ switched the others so the Tele is in V3 and the Seimens is in V1. Things are pretty nice now. Somehow I get the feeling of trying a Bugle Boy in V2 to replace the Mullard. Maybe later, will report back.
Are there any other EAR 834P modders lately?
I had to beg David Schulte of Upgrade Company to mod my EAR 834P because there are so many detractors. There are also loads of DIY people who have tweaked the circuit in custom ways. The changes I had made include V-cap coupling caps and RFI shileding. Switching from using the 12AX7 tubes to 5751 or 12AT7 tubes if you can handle the lower gain also is highly beneficial. I use Valvo 6201 blue print in the one spot, Brimar and Siemen Halske 12AT7's in the gain stages 2 & 3. 2 is not left and 3 is not right- it sums the tubes for the gain stage left and right. My results are stunning. Because the 12AT7's only have 70% of the gain or the 12AX7, I changed out my Bent Audio step up tranny's for Bob's Devices Cinemag 1131 with a 1:40 or 1:20, ratio which is adjusted at the flip of a toggle switch.
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- 28 posts total
- 28 posts total