Mind Blowers were the real deal !!! All you guys speculating that they were "junk" have obviously never heard these speakers. These pair of 6x9's put out loud crisp sound that sounded better than a lot of peoples home systems. I just bought a Corvette and went to the audio store to get the best system I could find. I told the sales guy about those old speakers and he cranked his best system up, then turned it down and looked at me and said "how about that"? I responded with, "they aren't even close", and they weren't. My best friend in highschool had them in his car and when he turned the corner about 500 yards away from my house I could tell what song was playing while still in my house with the doors/windows shut...yes, really. Why do you think so many people are looking for these things? Because nothing measures up, after all this time... pretty amazing. If I could find a pair of these Mind Blower speakers I would pay whatever it cost to get them! If you find some still around, they probably belong to an old stoner that is now deaf. I can't imagine two sets of these in an Opel... how did you keep the windshield and windows in the car?