I am trying to understand whether different amps will require a change to the DR260 "factory" tunings. Specifically I am thinking the input sensitivity of the amp must be accounted for.
The situation is Bi-amping an SRX722. Using the JBL suggested DR260 tunings if we ignore all the EQ settings and actual crossover frequency, and just look at the crossover Gain, they suggest the mids be at 0db and the high be at -10db. Presumably this is because the horn is more effecient.
But I am using two different amps for the mids and the highs. The amps are both 40x (32db) gain and I run them wide open, but the input sensitivity is different.
Mids - PLX3402 input sensitivity 1.7Vrms @ 4ohm (6.8dBu)
High - PLX1202 input sensitivity 1.0Vrms @ 8ohm (2.2dBu)
So don't I have to compensate for this difference in input sensitivity when programming the DR260? That is 6.8dBu - 2.2dBu = 4.6dBu. Should I subtract this additional 4.6dBu from the High crossover Gain making it -14.6dB?