Quote:I measured a 500W no boost Yung. R23 = 57.6k and R8=10k.
That gives a Q of 1.2 and a Fc of 30.14Hz. F3 is ~22Hz with a boost of ~2.4dB centered at ~38Hz. Of course this is based on the assumption that the boost circuit isn't also influencing things. I'm somewhat skeptical of this since the components of the boost circuit are populated on the board.