iight my bad but the web site want let me copy n paste so here are some of the main things ita a
QC12D4
magnet size 65 Oz
sensitivity 87dB
RMS 750
Max 1500
voice coil dual 4ohm
ok i hope this helped a little bit nan the amps r proaucostic
pram 130 1300 max 2 channel 2 ohm stable
pram 122 1200 max 2 channel 2 ohm stable