So, a week ago I had the pleasure of spending an afternoon at the Gallery in London, trying out basses. I wanted to know more about 70s Jazzes, so I tried out about seven of them. Two of them were early '70s basses with alder bodies and rosewood fretboards, four of them were early '70s basses with alder bodies and maple fretboards, and one was a late '70s bass with an ash body and maple fretboard, with the three-bolt neck My favorite by far was the latter, it just had THAT tone. They were all very nice, but the cheaper, heavier, ash bass just killed. Is the ash body the secret to that '70s tone? It just had an upper-mid grind to the sound, along with a heavier bottom, that made it sound like an active bass. Had me gassing hard, I can't get that bass out of my head. I also compared it to a '74 reissue, which also had an ash body (I think, I might be wrong) which sounded a lot like the earlier alder bodied basses. So is it really just the ash body, or was there any change to the pickups that happened about that time as well? Any thoughts?