quick warning, check the Behringer B-1 power requirements. Pretty sure it's a condenser mic and as such requires 48v of phantom power to operate/function. (Not 100% sure)
I only say this because the Xenyx 302USB DOESN'T have the 48volt of phantom power needed to power it. Only produces around 11-15v. I'm only saying this because I had the same problem happen to me. I bought the Xenyx and XLR condenser mic and it wouldn't
work consistently took me forever to figure out.
It was under-powered.
You can get stand-alone 48v phantom power units from Amazon.
http://www.amazon.com/Innogear-Condenser-Microphone-Recording-Equipment/dp/B00KAPGLQC/ref=sr\_1\_1?ie=UTF8&qid=1424878219&sr=8-1&keywords=48v+phantom+power+unit
That one will run you about another $20.00
Or buy a different mixer that has 48v phantom power.
Only saying this because with XLR being one of the only solutions to this problem I went through a TON of self-research and trial and error...it sucked. Trying to save others the headache.