LOL, I had both of those as well. Actually, mine was the Celica GTS (manual) and not the Supra. Loved it so much that when I blew the engine I paid a race engineer cash to rebuild it. I remember how cool the mag wheels, flared fenders and sport seats were. The Corolla GTS (AE86) was cool too....... .....because it was slightly more agile. It just wasn't as cool as my Celica GTS. To get back on topic I've pulled out my old skool KZ's and the KZ veterans will be glad to hear that the BA10 actually sounds more like the ED3 "The Acme" than it does the ZS3. The BA10 sound signature is nearly identical to the ED3 "The Acme" but the bass is much cleaner; the resolution, imaging, separation and imaging are all improved across the board. Pull out your ED3 "The Acme" (Youth version) and listen to one of your favorite tracks; try to imagine an extremely clean presentation of what you are hearing. That is the BA10 in a nutshell. Once again, props to Igor for the graph. The blue line is more in line with what I am hearing (less mid-bass hump) from the BA10. The ED3 "Acme" starts to roll off at about 60hz but the BA10 has better extension all the way into the 15hz region, and again, that bass is sooooo much cleaner. To be fair I should remove those red vinyl grills that are staring right at me. Maybe I'll get a cleaner presentation from "The Acme". Be aware that my BA10 has the grill removed, the foam removed and whirlwind (wide-bore) eartips affixed. I could not fit wide-bore eartips on the ED3's smaller nozzles so the comparison is a little off. That said, I'm pretty sure I identified the sound signature correctly. I paid $10 a set for the ED3's when they were released and that was a great deal. The BA10 at $75+/- is still a great deal in my opinion. Full disclosure: I didn't pay full price for mine but considering the build quality and tuning I think $75+/- is more than reasonable "IF" you don't have small ears and if you can get a good seal.