The Patchbay Blog

U87 & Neve 1073 getting distortion

On Nov 29, 2011, at 1:12 AM, Steven Williams wrote:

Dear Bob,
I have a Neutrik bantam patch bay NPPA-TT-SD25 and am patching a Neumann U87 through to a Neve 1073 pre-amp. I am getting distortion on some of the louder notes from the singer and a surge in the volume on these notes. When I take the patch bay out of the equation and plug the microphone straight in to the pre-amp, the problem disappears. I am turning phantom power off before plugging.
I want to use the patch bay to patch pre-amps to microphones, what am I doing wrong?

Many thanks and best regards

Steven A Williams
Studio: 020 8141 2638
Mobile: 07940 490055

On Nov 29, 2011, at 1:13 AM, Steven Williams wrote:

Hi Bob,
Can you also reply direct to my last email as well as post the answer. Thanks.
Best regards

Hey Steven,

That's interesting. Does the NPPA-TT-SD25 use a circuit-board? Are the patch cables clean?

On Nov 30, 2011, at 12:13 AM, Steven Williams wrote:

Hi Bob,
Thank you for your email. Problem has been solved. I had the lower patch half normalised and it was going to the desk's insert, although not turned on it was causing power confusion on the connection. I simply plugged in a patch chord into the lower patch hole. Many thanks.
Best regards

That would do it. Take care.


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