Gear / Technical Help > Battery Boxes, Preamps, Mixers, ADCs, and Processors

Uses today for Unbalanced Lo Z to Balanced Hi Z adapters?

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illconditioned:
Interesting. Used these before to isolate gear.
I wonder if cutting the middle wire (pin 1 on the XLR) would avoid ground loops.
I think this is the way "ground lift" works on some boxes.

DSatz:
These are designed, I think, to let you plug a guitar or keyboard into a balanced microphone input on a mixer. I don't think they're 1:1 isolation devices (which certainly exist) but instead, the transformer may be wired to step the voltage down by 20 dB or more.

Also, audio transformers that small are hard to make well. These may be fine for casual use and for speech applications, but I would want to measure and listen carefully before trusting them for any music recording that I cared about.

EmRR:
Essentially same as a transformer coupled direct box, but in a barrel with no ground lift option.  Hi-Z 1/4" to 600Ω balanced, probably 50K hi-Z.  Not meant for significant source level, more like hi-z mic or instrument.  A hot keyboard could overload it in the bass.  You can put an xls gender revers inline and plug a 1/4" cable into it to use it the other direction, low-Z step-up to hi-Z. 

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