decent amps, i had the 250 and the 2130. my friend has the 250 and its still bnib. i sold the 130 and a pair of kicker cvr 12s to a guy and he smoked the cvrs within minuites. the 2130 is a good bit bigger but still are nice hc amps. they are 1/2 ohm stable stereo. 1 ohm bridged. cant remember what the 250 was rated at, i think around 500 bridged @1ohm. the 2130 did 1350 bridged @ 1ohm. i will have to call my buddy and see. anyways bump for nice os stuff.