| Want to understand this as well.
Could you elaborate on how your cables are connected? I would probably make cables as this:
First channel
tip of 1/8 goes to pin 2 of XLR
ground of 1/8 goes to pin1 and 3 of XLR
Second channel
middle ring of 1/8 goes to pin 2 of XLR
ground of 1/8 goes to pin 1 and 3 of XLR.
Sometimes it may be better to connect to pin 1 of only one of the XLR-s as it does create a (very small but still) loop. Very rarely it is better to not connect pin 1 at all, generally when both units share a ground connection some other place. This would also be the option to use if you cannot control phantom power separately.
Note that cables connected like this should not have phantom power on -- they shortcircuit pin 1 and 3 (nothing will be destroyed, but the power supply might sag in voltage, not that it should but things are not always up to spec). There is no free lunches really, the only way to avoid the problem is to have transformers in the cable.
// Gunnar |