AusTex64
Well-known member
- Joined
- Jun 3, 2013
- Messages
- 525
I discovered that my AMI U47 build's voltage divider supplies 72V to the backplate from 120V from the PSU. I understand 72V should be no problem, and will increase sensitivity and improve signal to noise. But how does this affect patterns when the max voltage I can get to the rear diaphragm is 120V in fig 8?
BTW, the mic sounds great with 72V. Of course I haven't heard it with 60V, so no frame of reference. Trying to decide if messing with it is worth the effort, since it sounds so good now. Might have been a "happy accident".
BTW, the mic sounds great with 72V. Of course I haven't heard it with 60V, so no frame of reference. Trying to decide if messing with it is worth the effort, since it sounds so good now. Might have been a "happy accident".