Reading yor Web page the last 2 years gave me the info I needed
to built my dream system .Of Course JBL 2235 15 woofer
2123H 10" midramge and 2420 Highs. Built my ownd 6Db crossover
and the cabinet about 4 cubic feet .out of Finnish Birch ply.
Just fired it up .some tweaking to do but at low volume it is
sounding Great. more than I hoped for .I enclosed the 10" with the
10 ' concrete tube .per Daniels system . All I can sy is Thanks
for thw Info.