okay;
my manual says to have a 250 nwb/m test tape; calibrated tp 0 db on the VU meters, and .3 V on the output.
but the USR website said for 456 to get a 355 nwb/m tape. so if you have a 355 nwb/m tape, according to the thread I referenced above, you want the vu meters to say +3.
what should the volt reading be on the output?
I think I need a refresher on how to add dBs and convert to voltage.