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Originally Posted by thethrillfactor The main differences between the C and the new J/D:
1) 340 output card-big difference. |
Hi
Not wanting to be pedantic, but it's a 440! The difference to a 340 is minimal though.
The first 33609's used the motherboard from a 33314 (with Marinair LO1173 output transformer) and a 1777 power supply which was discrete transistor and rated at some teeny current... certainly no more than 500mA.
I almost begged Neve to update the design while I was there but they insisted that it would change the sound (and was costly... but no more costly than they were to make)... and they changed it to the C after I left, incorporating most of my changes.
The C is a different motherboard but similar circuit, the main difference being that it used IDC connections. It used my recommended 317 IC regulator and a better, toroidal, ac transformer. I think it went over to Carnhill transformers.
The J for Japan used those damn great buttons that have to drive relays.... my original toggle switches handled the signal without relays... there's progress!
I have no idea what changes were included in recent times but I'm equally sure that swapping an IC BA640 for a discrete BA440 was not the main reason for a change in sound.
My guess is that it's a transformer improvement... but that's just a guess.
