I am building the crossovers for the Hawthorne Audio OB 15 Coaxials, so I'm not an un-biased source for info. I do own both the coaxials and the Augies bass drivers. You can read the review on TNT of the Coaxials here>

http://www.tnt-audio.com/casse/ha_si_part1_e.html

As for the Augie bass drivers, they were designed for use on OB as a bass driver and perform well at it. Flat to around 30 Hz on a modest baffle.

Dave

• TNT review