Part of the BLOX series, this compact adaptor converts a 1/4" unbalanced line level signal to balanced XLR.
These are great for converting unbalanced to balanced signals for long cable runs. I hide these behind flat TVs for running back to amplifiers. I have also found that they can easily be modified with different connectors - takes a little creativity and a soldering iron.
I have been dealing with MCM for over 30 years now. If I didn't like the service I'd would have found a different supplier 30 years ago. For most of my needs they are the 1st stop on my shopping list.