zipiv OP
I’m considering upgrading the Opamps in my MusicHall 25.3 DAC
Pardon my tardiness. I have and not to my surprise decided to keep the OpAmps.
The tube seems to be the output buffer stage from what I saw in pictures, any opamps will most likely be the I/V stage (current to voltage stage) after the dac chip (a hybrid Burr-Brown PCM1796), and you shouldn’t mucking around with those opamps unless you know what your doing, do something wrong here and you could say goodbye to the PCM1796 dac chip because it’s output hooked directly any opamp I/V stage, from what I’ve seen it’s the TI OPA2134, which makes for a fine I/V stage, YBA uses them as their I/V opamp with the PCM1796 also, and YBA are no fools.
Cheers George