I'm looking at making a deal to try and match up a 902 driver with a tangerine phase plug and a 34852 'phragm.

http://www.hostboard.com/forums/f700...53-driver.html

I don't know the series of either my driver, or the one being offered. I do know the one I'm looking at is a 902 series 16 ohm, and has a tangerine phase plug also.

Is there a major difference between the A series and the B series in how they sound?

Would one having a loading cap, and the other a metal cover add to any differences?

TIA........