Also, I made a change to the tweeter crossover that I like. With the stock crossover I hear a bit of very high frequence grunge. Adding a 1.5 ohm non inductive resistor in series with the 10uF tweeter cap smooths this out quite a bit. Adding the resistor apparently has little effect on the lower treble, but it attenuates the high treble just a bit. The sound of decaying cymbals, etc, improves quite a bit.