Are you sure Wayne? I know both the 2240 and 2245 both use JBL's patented SFG (symetrical field geometry) and have a flux stablizing ring. Here is a link to the woofer that I did win:
I heard that on the 2245 though JBL did something to the magnetic structure in comparison to the 2240?
I won the auction for US$175 but I'm in australia so its a bit less due to exchange rate is good at the moment, if it really will be a 2245H then I'm glad even if its 2240H frame. It will replace my 18 Sound 18LW1400 in a 300L 25Hz tuned vented enclosure.
I'm not reconing it but as the MWA kits are apparently very close to factory spec, but are you sure it will be the same and have same xmax and all t/s specs as the 2245 even though its a 2240 frame? Dont want to pay the guy and end up with something inbetween that I cant even model a box around.
BTW: Wayne, its me, Adrian Mack, how ya goin mate? Been a long time! Gotta rebuild my midrange horns since they went missing after leaving the house to my brother, shame I cant remember what the dimensions were and my personal DIY website has shut down since Yahoo Geocities closed! Pretty sure I remember or havev written the dimensions of the midrange horns for the Alpha 6's though. Gotta be on Pi Speakers forum somewhere. Just got a pair of awesome Marantz MA500 monoblock amps with damping factor of 200 and S/N ratio almost 120db and is 125WRMS @ 8ohms per monoblock at 0.05% THD full freq range.