Final Conclusion On The M500t's
Gentlemen, after the six month waiting game; my father received his dual Carver M500t's this Christmas, and he was LITERALLY "blown" away. I covered them up with a blanket and had a rock song on 'Pause' for six hours, till present time under the three came around. I started off by whipping off the covers and un-pausing the CD player and BOOM! He was greeted by blaring tunes and sweeping meters. I said Merry Christmas, and enjoy your new pair of Carver M500t's! He thought it was a joke? That they were mine? Never ever expected something like that!
I should also note, he also received two tubes under the tree of two PL400 WOA light boards. I installed them yesterday for him. Now he has all four of his PL 400's in Joe's awe-inspiring white light!
I hooked up the Carver's in his system upstairs, in place of two PL400's he was using with his audio research SP3A-1 preamp. He told me he was hearing things in his music he had not heard before. He said he wanted four more M500t's to replace all PL400's.
Well........I'm cool with that if he is happy. But see; here is the thing. I swear I can hear a difference in model years on these amps. It's like comparing a 4-fin PL400 to an 8-fin PL400. (even though there may be sonically no difference)? But in THESE I think so. From what I can tell................the earlier model has a missing mod that the later has. And the later SOUNDS better to me. Accurate to be best described. The non mod seems to sound "muddied" or distorted when you crank the volume. But it's not technically distorted. If you know what I mean? It just sounds "off" to me. But HE swears he can't hear it in his highs? But he said he's "old and can't hear highs anyway". Well he has that non-mod amp ON his highs and I can tell.
So riddle me this batman? For anyone out there that knows Carver amps, I have noticed a discernible difference on the circuit boards. From what TINY bit I could find on some obscure site; I THINK I read that resistors were added in in later production runs to better adjust the bias. Or Bias resistors were added. Any truth to this? Here are photo's I took of the internal circuitry before it left my hands. I'd be interested to know what if any improvement this may cause? If indeed it was made as an improvement?
Regardless, he is VERY pleased. And couldn't have asked for more. He deserves it. Thanks guys!