ikKna wrote:I need to set-up an XLR mic to my pioneer DDJ-RB. Should I buy an audio interface and wire that into the mic input on the cdj? or will an XLR to 1/4" jack have enough power for the mic (mic is a shure SM58 btw)
I'm struggling to find any useful technical data on the DDJ-RB, but it appears that the mic input socket on that device is an unbalanced TS plug probably intended for the old-fashioned idea of 'high-impedance' dynamic mics.
An XLR to TS 1/4-inch jack cable is exactly what you need -- you certainly don't need a computer style interface.
However, the SM58 has a pretty low output level and isn't intended to drive a high-impedance input like this directly. Consequently, you may struggle to get enough level from the mic, even with the rear panel gain control turned right up.
If that's the case, the solution is to invest in a mic transformer like the Shure A85F which will boost the signal level by around 24dB. It will cost around $20/£25. It's an entirely passive device, so needs no power and is designed specifically for this kind of application. Note: you'll also need an XLR-XLR cable to connect the mic to the transformer.http://www.shure.com/americas/products/accessories/microphones/microphone-problem-solvers/a85f-line-matching-transformer