sanaka
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- Apr 13, 2004
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This is kinda OT but with the interest in interconnects around here I'm confident some of you will know exactly what my problem is
I have an Audio Technica AT822 stereo mic. It outputs unbalanced L/R on pins 2 & 3 of a standard XLR, pin 1 is ground. I built a cable to split this to two separate XLR's for standard unbalanced input to two channels of my mixing board. The signal routing all came out right, but there's a moderate hum which gets kinda bad when I touch the XLR connector at the mic end. With the mic unplugged from the cable, it turns to a radical loud buzz.
I made a couple other special XLR (unbalanced) cables for my mics and always tied the braided shield together with the signal ground. This time, noticing the fourth little solder tab on the XLR's, I kept the braid separate from signal ground and soldered it to those tabs on the connector shells figuring "chassis ground." Is this my problem?
I hope so because it would be easy to fix, either by tying the braid to signal G as before, or ?? A better way perhaps?
BTW the mixer has a two prong power plug, so it seems "chassis ground" might go nowhere.
I'm hoping to have it worked out today so I can use the mic for recording tonight and tomorrow. Thanks!!!!
Peace,
Sanaka
I have an Audio Technica AT822 stereo mic. It outputs unbalanced L/R on pins 2 & 3 of a standard XLR, pin 1 is ground. I built a cable to split this to two separate XLR's for standard unbalanced input to two channels of my mixing board. The signal routing all came out right, but there's a moderate hum which gets kinda bad when I touch the XLR connector at the mic end. With the mic unplugged from the cable, it turns to a radical loud buzz.
I made a couple other special XLR (unbalanced) cables for my mics and always tied the braided shield together with the signal ground. This time, noticing the fourth little solder tab on the XLR's, I kept the braid separate from signal ground and soldered it to those tabs on the connector shells figuring "chassis ground." Is this my problem?
I hope so because it would be easy to fix, either by tying the braid to signal G as before, or ?? A better way perhaps?
BTW the mixer has a two prong power plug, so it seems "chassis ground" might go nowhere.
I'm hoping to have it worked out today so I can use the mic for recording tonight and tomorrow. Thanks!!!!
Peace,
Sanaka