This worked: 'Try tip to pin 2, ring to pin 2 (on the other XLR). Shield to Pin 1 on both. Pin 3 is open'. It's left me with two channels, which is great, but a ground hum, which is not. Someone suggested putting a capacitor in but won't this reduce the signal? Thanks a/form for that link, it's technically beyond me, but I'm sure I'll get desperate enough to have it translated by someone with a brain. Jack