It's been about a year since I built a pair of 2 Pi towers. I've enjoyed them immensely. Being satisfied, I sort of drifted away from checking this forum on a regular basis.

I see from some older posts that there is a crossover now included on the design of the 2 Pi Tower. Am I correct? I have always thought that the end product was a little bright, but not by any means unpleasant or unusual - I would just like to hear a little more balance regarding the lower octaves (if that's possible).

Could I get the most recent plans for this speaker, or just the crossover? I'm already anticipating the end of summer, and it's time for me to plan my winter tinkering.

Thanks,

John A. Burns

Anyway, a 0.5mH coil was added in series with the midwoofer, which brings down the presence above 1kHz just a little bit. You can certainly add it to the older speakers - The difference is very slight but noticable. But the coil is really only intended to be used with the newer midwoofers, and I compared them with and without the coil in the post called "Coils on one π's and two π's."

This is the only circuit difference in the old and the new models - The addition of 0.5mH coil in series with the midwoofer. You can get a 0.5mH coil from Parts Express, part number 260-723.