Gyraf pultec filter into mic Pre for makeup

[Coldsnow]

Hi all,
I've seen some info on this but would like to clarify if I could.  I'm messing around with a filter section built to the G pultec.  I've also included the 220 cap on the output and the 470k resister from that point to ground as in the original gyraf schematic that is prior to the tube make up stage.  It works great going to a line level input of another device for make up.  If I wanted to go to a mic Pre for make up, should I use a transformer type di in between?
Thanks

 

[gyraf]

the pultec filter wants to see a relatively high-impedance makeup gain amplifier.

Jakob E.

 

[Coldsnow]

Would instrument level of a preamp be too high of an impedence?

 

[ruffrecords]

Would instrument level of a preamp be too high of an impedence?

That would be fine. The higher the better.

Cheers

Ian

 

[mitsos]

The old solid state ones used an API 2520 for makeup. Went pretty much directly into the positive input, with a 100K resistor to ground.  The schematic is around here somewhere. Check the tech docs, it might be there.  Anyway, I've built a bunch of API 312s with a DI going straight into the opamp, it's been done for ages with APIs. Basically the same thing.