also i did a drop in amp test db drive pd2k vs saz 2k both amps gains set to 2k rms with dmm same sub, same load, same vehicle and same enclosure and the db drive was louder on the meter...
i would link it but im a work and caco is blocked for some reason, go figure. but go google saz-2000d vs db drive pd2000. the threads on caco. a bunch of guys were talking about it. a few said it would be good to compare the db drive pd2k vs saz-2500d