Subs for electrostatics

[E-Stat]

I have been using ES speakers since 1985. I have never had any problem integrating a subwoofer with any of them. I have always used an external electronic crossover with high and low pass filtering and bi-amped.

I will respectively disagree. I've tried active subs using low pass filtering with Acoustats dating back to '77. My objection was related to the sub's different radiation pattern, not boominess. I tried settings down to 50 hz or so and was never satisfied.

That's why I enjoy the SL U-1s - they respond down to the twenties without augmentation.

rw