Krell Industries 202 用户手册

When you mix and match high-performance audio components, each with its own

ground potential, a low frequency hum may occur in one or both loudspeakers.

If this happens when you place the Evolution 202 preamplifier into your system,

follow these simple troubleshooting steps.

Check that all input and output connections are of sound construction.

With the preamplifier channel off, remove the interconnect cables, then turn the

preamplifier channel on. If the hum disappears, turn the preamplifier channel

off and reinsert one of the interconnect cables. Turn the preamplifier channel

back on. Repeat this process for each cable.

If the hum reappears with one or both interconnect cables reinserted, the cable

needs to be replaced.

If the interconnect cables are sound, you may be experiencing a ground loop.

Please contact your authorized Krell dealer, distributor, or Krell for suggestions

on how to eliminate the ground loop.