i don't know about the generation X but, thier current itteration, XI, are some of the best on the market. not to mention thier killer looks, if you can find pics of one opened up, your jaw will drop to the ground.. Hifonics has the best engineering/design under the covers. amazing amps for the money too. in a review i read, a hifonics Zeus amp severely beat a pheonix gold amp in sound quality. The higher end amps have a much higher signal to noise ratio, many are one ohm stable, higher dampening ratio, low THD, more channel seperation, lots of power, and they look soo sexy. You got a really sweet amp (unless it's the ugly black ones....those amps rock, but they sure are ugly

. hifonics is one of my favorite brands. I spent many nights debating whether to get the hifonics son of europa, or the US acoustics USX4065 for my infinity kappa 50.5cs components (i got the USX, because it was $50 cheaper, and i was tight on cash).