KonstantinN
New Head-Fier
This is also my first post here even though i am a long time lurker.The lazy way to correct for voltage offset independently in L or R channel.(there are other ways, of course!)
(In my case the offset was rather high in one channel, 17mV, while very acceptable in the other. A little trying and failing, and I ended up with less than 1mV offset by reducing the resistance in (what I call) R3 in the drawing to ca. 1.4k by (from 1.5k) by adding an Rx=18k in parallel. The Idle current was accordingly increased by less than 2mA (of 57mA originally), a totally insignificant change IMO. I don't know if this could be of interest to any of you. You can see the added resistor in the photo).
I must not forget to say thanks to all for an interesting thread, Olaf
(this is also a kind of test posting, since it is my first)
Following the direction of chetlanin and bla-bla’s comments, i zeroed DC offset of my LC output by soldering 4 variable 50k resitors in parallel to the 1.5k resistors (R25, R28,R29,R32) on the schematic.
A bit of nipples turning - hooray! 0mV DC in both channels!
And a note about Muses8920 opamp for the Lovely Cube - it sounds great! With good recordings - better than 2111 to my taste for width and depth of the sound stage and instruments separation and positioning. Unfortunately it comes at the cost of less engaging vocal and emphasizing of bad recordings imperfections. Had anyone tried Muses01 in the Cube ABing with 8920?
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