Says at 11.5v continuous w less than 0.15%tdh 175 at 113db!!! 2 ohm stable. I put 1 on a pair of RE dvc 1000rms 10 and it was???### my db meter went into error at 135.I have a crap load of old school amps zed made,and a few of the monster audiobahns....18001,2200hct,4125hct,means m 66 hc66,44,hc44 99,bts 7150 7154 7204,hifonics genisus cyclops ect,ect.Those amps slaved will push that 18 1200rms sub all day long without any issues at a 2 ohm load.Fuse rating at 4ohms is 20amp,and 2 ohms is 30.TRue rms power,and im at 14.4v all day with my set up.. should be interesting.Never slaved the Hifonics viii together ever.