I did replace the tweeters with a pair of APT80 this weekend though. This is where Wayne and I might disagree the necessity on this mod, but to me, it's worth money. The APT tweeters never get much mention on this board, but they sound very nice with both the Alpha8 and Alpha10.

You know what would be a neat project? Stretch the One-PI's to a mini-tower at 30" tall and you'll get f3 in the mid 40's.

Gar.

Thanks...

C1: 3.3uF
L1: 2.5mH
C2: 5.7uF

4 ohm resistors for both L-pad resistors

The figures give you a 3rd order drop at 3.5KHz, 10dB attenuation, AND compensation for the 3dB roll-off of the APT80 in the top octave. (At least that's what SPICE predicts.) Sounds good too. I've tried it with a 13dB attenuation, but sounded too dark to me.

I have the 0.5mH coil in the path of the woofer, but would like to try a 0.25mH. Oh ya, connect the tweeter in reverse.

Gar.