2. amps-preamps
  3. 162009-109061

SPL Meter to Match Gains in a Passive Bi Amped Crossover Network

Am passively biamping tube for the mids/tweets and SS for the woofers. I am asking if anyone who has passively Bi amped has a tried and true method for matching gain using a simple SPL meter?  Don’t really want to get into a discussion about passive vs active and why you might think I’m wasting my time. I know I’m not the only passive bi amper that’s happy “enough” with passive results. Thanks for your input and taking the time to read this.  
rob_1958

Showing 2 responses by kr4

kr4's avatar
kr4
3,705 posts
 
No.  You should use an AC volt meter at the output of each amp with a sinewave stimulus.
kr4's avatar
kr4
3,705 posts
 
The problem with making an acoustic measurement is that it is so sensitively variable with the position and orientation of the microphone.  OTOH, if the speaker is still endowed with its original crossover to insure that the upper and lower bands are balanced, an electrical measurement of the input signal is simply more precise.
More to discover