Well I see the argument sill goes on. Anyway I'm still looking for a dead set as I still want to tear into them and see if I can reproduce them. I also would like to bench test the amps on my audio analyzer. About the only time consuming part would be winding those interstage transformers. Would have to tear those transformers apart to be able to duplicate them. If you have a set with just blown speakers, it is easy to remove the amps, carefully drill and tap the magnets on your favorite replacement speakers and attach the amps as I did once to a set of Tri-axels. After rolling my 69' Roadrunner on the roof I built boxes and stuck them in the back of my Blazer. Too bad I let them go with the Blazer when I sold it. There is something to say about certain pieces of vintage audio, unless you heard it you may not believe it. My latest stereo build is a transistor power amp. I took an heatsinked output array from a vintage 70's stereo receiver and coupled it to a driver board from Rod over at Elliot Sound, and ended up with a real 90w per channel home stereo amp. Good sound should not require 1000's of watts. Running through a set of 35 year old 3 way's with 15" woofers, well my friends can't believe how well old school transistors (and Vacuum tubes as I build those also) sound compared to their modern amps and speakers. Not saying it is better, just that you can obtain really good results with old school components. It's all in engineering. We had nothing else to compare the Mindblowers with back then as good car audio was just coming of age.