Ebtech HE-2-XLR Hum Eliminator for FRFRs

[zooey]

Clearly you want to have some sort of transformer isolation box between Helix and the PA (or at least have one available), both to block phantom power, and to deal w potential ground loop hum.

 

PA aside, do folks think you should also have something similar available for connecting Helix stereo outs (i.e. 2 cables) to 2 powered FRFRs?

 

Wouldn't care about buying another one if they were super cheap like the PYLE-PRO PHE400, but I've heard multiple unflattering reports of the reliability and sound quality of their products. I was thinking about the Ebtech HE-2-XLR Hum Eliminator instead, ~ $60, not too bad, but still. One for the PA is unavoidable, but another one for FRFRs, maybe not, and I'm a cheapskate (well, after Helix anyway). Both those units are 2 channels.

 

Think something like that's necessary for that use?

[texasdave]

Since the FRFR's don't have phantom power, it's probably not necessary.  Where it "might" help would be if you had to power the FRFRs from a different power outlet than the Helix.

 

Texasdave

[zooey]

Yeah, you're right about no phantom in the speakers of course, I should have been clearer.

 

I was thinking about the possible case where Helix and speakers end up on separate AC circuits, or for some other reason have a grounding issue that an iso box might help with. Wondered if that was something people had run into much, and if an iso box helped.

 

In the end, I did decide to get 2, among other reasons because if you don't have a spare Thing, your Thing will break. Not  t h a t  much money.