Ward Beck M472 EQ - balancing i/o

[earthsled]

Hi all!

I have a pair of WBS M472 EQs to rack-up (schematic attached).

How should I balance the inputs and outputs?
Transformers? Active buffer circuit? Resistance network?
Which method is best? Any tips?

Thanks for your help!

 

[Whoops]

If you want to make it simple and less expensive you can use THATS chips for unbalancing an balancing.  works great

You can use also transformers for the input and output, but that will be much more expensive.

Depends on what you want.
Both options will sound good and work fine, well the transformer route will depend on the transformers used of course.

 

[dustbro]

I agree.  You can build a quick INA134/DRV134 board that would work great.

 

[ForthMonkey]

I re-designed this unit for 500 series and used simple NE55XX series op amps.

You can check;

https://analogobsession.wordpress.com/hardware/wb472m500/