Excellent posting there um horsehair.
If you wanted to go all out with your venture you could write to TC Electronics, and if they dont make one already,for a price, they will make one for you. The FV300L will do the trick though but I am not so sure if it allows two discrete channels sir. I think the Hi-Z unit is stereo so I am presuming the lo-imp. version does as well.
It is safe to assume that the only difference is the use of internal line matching transformers inside the roomy box and well shielded to boot. also look at names like Whirlwind and Amphenol, maybe even Proco makes something. I mean, were talking about a well sheilded 100K pot here, or well 2 of em in the case of stereo. certainly not too much rocket science here. Note that in doing this, you will no longer have the ability to lift off your ground though in case you needed to and you did say you would be using this for live performance. The neg side of the signal would dictate a common and constant ground for the stereo signal. Hums that can occur due to you will no longer be able to be eliminated by a ground lift. You may think that does not matter but your sound man may think otherwise when a big humm from you comes rolling in that he needs to get rid of quickly. 60 Hz, if loud enough can clear an auditorium. My advice would be to try the FV300L on a purchase having a good return policy. Tell the guy, hey I will try this out, but if I don't like it, I'm going to return it for a refund. If it works without humm on cement or earth (dirt) itself, it's a keeper. I doubt you will have any problems if it passes that situation.
see ya all later!
MORPH!

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