Noise/Hum
•Check the signal cable between the mixer and the subwoofer. Make sure all connections are secure. These problems usually produce crackling noises or hum.
•If you are using two or more SRM1801 powered subwoofers, try plugging them all into the same AC outlet panel or outlet strip. The purpose for this is to connect them all to the same earth ground point and reduce the possibility of creating a ground loop.
•If connecting an unbalanced output to the
SRM1801 balanced input, make sure the shield is connected to the unbalanced ground and to pin 1 of the XLR.
Repair
For warranty service, refer to the warranty information on page 18.
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