Thanks Markphd ... I should have added a little more information. I've built MANY speakers over many years, and understand all of the variables involved... I've just never built a bi-polar speaker before and was wondering if there was anything I may not have considered. I'll keep the correct enclosure volume, as well as proper port length and diameter. I just wanted to be sure I was not overlooking anything else.
Making bi-polars out of bookshelf speakers ?
Can anyone think of any good reason why I can't take two pairs of identical bookshelf speakers ... build some custom bi-polar shaped cabinets ... and make my own bi-polar speakers ? Providing the combined impedance doesn't dip too low ? I can do this for HUNDREDS of dollars less than I can pay for the factory bi-polars of the same manufacturer.