What to do if Neumann Subwoofer KH 750 DSP back panel LEDs are off and no sound is heard?
If the back panel LEDs are off and no sound is heard from your Neumann KH 750 DSP Subwoofer, there are two possible reasons: * The main fuse may have blown. In this case, have the product checked by an authorized Neumann service partner. * The KH 750 DSP might be in standby mode. Try waking it up by playing some audio into it.
Why does my Neumann Subwoofer KH 750 DSP have hum or buzz with analog audio cable?
Humming or buzzing from your Neumann KH 750 DSP Subwoofer when using an analog audio cable can be due to several reasons: * A defective cable. * Bad cabling. * A ground loop in the installation. * The audio source level being too low. To resolve this, check all cabling, avoid running signal cables parallel to mains cables, use balanced cables, utilize the ground lift switch, increase the signal levels from your source, and reduce the levels on your subwoofer and loudspeakers.
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