Hi
In my humble opinion, AMS-Neve and Neve before them should have left it like it was. They took a nice product and, because the Japanese market was the biggest purchasers of the units, pandered to their requirements, I believe, and over complicated the unit with big, ugly switches (that needed control logic and relays... in place of a $1.50 toggle switch) and messed with the insides... dumping the Marinair/St Ives transformers for Willesden/Belclere cheaper ones.
Then, to add insult to injury, for a short time they added the word "Classic" to the silk screen artwork...
Excuse me?
So we finish up with threads like this re features that were never considered necessary on the originals.
The originals just sent a linking dc signal to the rear 9 pin D sub. You could use it or ignore it if you didn't have other units to link to it.
The best thing they could do, considering they make reissues of the 1073, 1084 and 1081, is to re-issue the 33609 as it was originally configured with just the updated power supply that I begged them to fit when I was at Neve.
They said it would change the sound... I insisted for better.
Then I leave and they changed it...