Yeah, Hifonics was the shiz back in the Zed Audio days. I remember the XE700 well. Kenwood had something similar if I remember correctly. I used to run an Alesis MEQ-230 studio EQ in my CRX after being inspired by reading an article about an install done in Scott Ian's Nissan Pathfinder. Damn, I miss the old Car Audio mags. Those were the days of innovation and creativity for car audio.