Join Date: Mar 2004
Location: Murfreesboro, TN
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I am serious...and don't call me Shirley.
Bryan Pape - Lead Acoustician
|Originally posted by aeromorris
When calibrating a sub is there an ideal level of amplifier gain that you should strive to achieve? I seem to remember something about slew rates and the optimal gain of a feedback control system being about 70% or [ 1/SQRT(2) ]. It's been a while since I took a circuits course and I'm admittedly not an electrical engineer.
I've been using a PB10-ISD for about 3 weeks now and I have the gain set to 50% and I'm wondering if I should lower the level in my receiver so that I can up the amp's gain to ~70-75%. I doubt the adjustment would be audible but I think the amp would work more efficiently. Any suggestions?
|I"m running about 60%. bpape's point about keeping it well above the noise floor is a good one. I'd say anywhere over 50% if it keeps the receiver adjustments in range. But do start with the manufacturer recommendation and work from there.|
|Originally posted by spider_bill_2003
My receiver let's me adjust the subwoofer through my receiver plus or minus 10DB.
Set the subwoofer in the ballpark volume wise at 0 DB at the receiver, then calibrate up or down via the receiver. You want to keep the receivers DSP in the ball park of 0 DB. In other words, not at -10DB or plus 10DB for a setting.
That's about all that you can do!