I wanted to get your opinion on BMS speakers/drivers. I've been offered some to audition in the Widget cabinets I'm working on. I had planned on using the Altec 416-8C from my old A7s and was wondering what the BMS 15N620 or 15N630 might do for me. He also has some 4592 drivers I can play with but they are 2" and all I have are the 511B horns.