Would that be an issue?? I'm looking to pick up a Relay wireless unit such as the G30 / G50 / G55 in the near future (and at a push maybe the G90.....) to implement into a rack setup; the smaller units would likely be velcro'd to my metal shelf....
Also, it looks like supplying them with power may be an issue! I'll pick up a VoodooLabs power supply such as the PP2+ or Digital (but what is the minimum current required to power the Relay units without dropouts (I've read of users getting away with just 250mA just fine but would be hoping to get away with 200mA using a current-doubler cable! As I also have a power-hungry Eventide H9 Max to power....!)
Could a G90 be powered from the 240v 'thru' IEC "courtesy outlet" on the VL PP2+ ?! Ideally I want a smaller one such as the G55 though; it might boil down to price however....