Hey guys I have an Anthem D1 preamp that I would like to upgrade the 33078 (2AVXR) op amps in. It appears that there are 2 gain stages of these chips after the DAC before the volume control chip. Space is limited so I would not be able use any fancy discrete chips but I can fit any DIP8 or SOIC8 chips in there so I'm considering something like:
MUSES01
MUSES02 (or MUSES8820E)
OPA1612 Q1
AD ?
But I'm open to any suggestions you might have. Luckily I have 2 of these preamps so I can experiment on one of them to see what happens. I can take any voltage measurements that may be required but I do not have a scope. Any help from the experts here would be much appreciated and I am willing to learn!
MUSES01
MUSES02 (or MUSES8820E)
OPA1612 Q1
AD ?
But I'm open to any suggestions you might have. Luckily I have 2 of these preamps so I can experiment on one of them to see what happens. I can take any voltage measurements that may be required but I do not have a scope. Any help from the experts here would be much appreciated and I am willing to learn!