- Joined
- Dec 29, 2015
- Messages
- 34
The differential input IC on my venerable Crown D75 power amp is getting noisey. Its a 4558 dual IC and while I have plenty of 5532 dual op amps I don't have any 4558s. Any reason I can't drop in a 5532 in this position? Some minor Googling seems to say yes but I thought it best to ask here. Its U2 in the schematic.
