Cinema Engineering Passive EQ - Pot Behavior Reversing with DI in chain

[Bo Deadly]

OK - Finally managed to get some time to look at this again.
I've flipped the hot & cold on the inputs, and removed the resistor entirely.

It's now about 9db signal loss on the round trip, and boosting either the hi or low pots fully brings that back up to zero.  No need for a DI at all ! ( unless cutting of course )

Will pull the other 3 units out and fix them aswell

You're welcome.

 

[emrr]

Perfect

 

[nohatnoswim]

It absolutely is !

And thanks to all for the passionate support

 

[Whoops]

Speculation does not help the OP.  I've run through the possibilities and replicated the problem. 

Unfortunately,  Abbey constantly replicates that behaviour that doesn't help anyone

No, Abbey, Doug DOES reproduce the problem AND solves it.  The "paper" he is referring to is his thoroughly detailed post. 

I know folks are high-strung right now, but yelling at someone who is actually doing the work and providing the solution is counterproductive.  Let's all take a deep breath and start fresh.

+1

 

[Whoops]

I'm fortunate to have got 5 Cinema Engineering 4031B's in my life recently.

I'm happy that you were able to acquire those 5 units and that you were able to solve the problem.

Have fun with the units, would love to try them one day