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.
zenbret

Showing 1 response by tfkaudio

Just a note... Tube V2 MUST be an ECC83/12AX7 or RIAA equalization will not be done correctly. If your system sounds better with a lower voltage tube in V2, then I'm guessing you prefer boosted highs and muted lows.

I've replaced V1 with a 5751 and it sounded good, but currently have a Brimar 12AX7 in there. Also sounds very nice.

Fyi... my unit has the full Mitch Singerman mods.

Tom