I have recently bought a Behringer Eurorack MX 1604A, and would like to be able to link it (and my various
instruments) into my Edirol/Roland UA-30 USB audio box.

As far as I can tell, the only outputs from the mixer seem to be 1/4" jack cables, but the UA-30 does offer stereo phono in and out ports, and I was hoping that there may be a simple way of creating a stereo in and out connection using these.

There are a pair of phono inputs and a pair of phono outputs on the mixer, marked 2-track 'Tape in' and 'Tape out' that aren't part of the main mixer outputs, but connecting them to my UA-30 doesn't seem to do anything

(i don't think this is particularly important, but I'll mention it anyway - I'm using the UA-30 with logic silver 4.8 via the ASIO driver that I purchased from www.usbaudio.com. The UA-30 operates perfectly well if I record, for instance, a microphone, through it, so I know that there's nothing wrong with it)

I'd be very grateful for any assistance

the phono I/O are Tape I/O, you can assign them to monitor or main with the buttons named 2TK (for 2 tracks) up the alt 3/4 fader (which must be controlling it, see manual), near it the 2TK to mix button… self explains (well I hope so)

I looked on the edirol… I see line I/O stereo and a jack for guitar and mic. Use the Line to connect to your berhinger, the guitar/mic In has not the right level so perfect for a mic, but for a mixer Out of line level… hum

For connection, use the jack outs of the behrhinger and the line ins of the AU 30. you'll need a 2 jack mono (tip=signal/jacket=earth) to 2 RCA cable (pin=signal/jacket=earth).

Isn't that a beautiful world we have?