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EAR834 build (almost done)
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SimonP
DIY Champ
DIY Champ
Nov 29, 2021
The EAR834 board has a spot for a Pot connection (you have to also add a couple of 68K resistors). The marking on the PCB isn't very clear but it does put a box around the 3-pins for each channel and the output is also marked. I don't think it works too well for a volume control. I have a 50K audio taper (log) pot installed and it lets me trim the output voltage some. Maybe just using a 100K audio pot on the full output and taking the output from the wiper/ground would work better. I could never find a schematic showing how the 68K/50K are connected (guess I could have metered it out...). I've had my EAR834 powered up for 5 days now, I did change V1 and V2 to the Mesa SPAX7-A, not sure how much of a change it made as I didn't give the JJ tubes much time to burn in. I've played a bunch of LPs through it and love the sound - it's very detailed and open . The bass is much better than before. My system isn't setup for bass (I'll list components below). I'm going to build the 6SQ7/EL34 amp next and pair it to this. Hopefully my speakers are sensitive enough - I don't listen at loud volume. Turntable: Rotel RP850 Cartridge: Ortofon 2M Bronze phono stage: EAR834 (Was Schiit Mani) Pre-Amp/ Headphone Amp: Schiit Magni Power Amp: Adcom GFA 535 (original not -II) Speakers: Monitor Audio R252 (sensitivity 90db) (Most of this is 30/40yr vintage stuff from my college days, other than the Schiit amp and cartridge. I didn't trust how my Ortofon VMS20E would behave after 40 years, so replaced it ) I'm loving listening to my LPs again - they bring back some memories. I think I might need to invest in a vinyl washer, some of the LPs have a little too much popping (and it's not from any scratches). -Simon.
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Simon from Dallas (rural McKinney)
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SimonP

SimonP

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