Sierra 2 Users: Anyone using a HSU High Pass Filter Optimizer?

[assassin]

Anyone used this to bypass the lowest frequencies to their Sierra-2? They let you pick 2 crossover frequencies from 30 - 150 Hz.

What would you recommend as the frequecies to use? I am thinking 80 Hz for option 1 and 100 or 120 Hz for option 2.

Thoughts?

http://www.hsuresearch.com/products/high-pass-filter.html

http://www.hsuresearch.com/products/prodImage/BassOptimizer/BassOptimizer-250.jpg

[Chucka]

Here is an alternate option:

http://www.hlabs.com/products/crossovers/index_files/Page395.htm