I could spend a long time searching around on all of the websites of companies like Radial, Palmer, Whirlwind, etc., but I’m hoping someone can help with a shortcut right to the answer. I want to take the output of a passive bass (’64 P) and send the output to two old tube amp heads. I know that some amps have the multiple inputs wired in parallel, so you could plug into one and take a feed out of the 2nd input. But I’d like this to be a bulletproof (and idiot proof) solution so it will work with amps that have a single input jack, amps that are not wired in parallel, or any unforeseen problems. The ultimate goal would be a simple box with a single input, and two outputs. I’m no EE, so I don’t know if there is any significant signal loss in this type of passive splitting? Do I need make-up gain? Should the I/O be transformer isolated to avoid any chance of problems between the two heads? This could end up being part of my main gig rig, so I’d rather do it correct the first time. (even if that means more $$$ than a simple splitter) What’s the *right* way to do this?