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Krell Current Tunnel 21
Operating the KCT Preamplifier
The KCT preamplifier is easy to install and operate. Instructions follow for on/off and
stand-by operation, and zone operating options.
IMPORTANT
Always mute or fully attenuate the preamplifier level when switching between active
sources (such as a CD player, tape monitor, or VCR).
Do not change the input connections to the preamplifier while the preamplifier is on.
Use care when setting high playback levels. Always lower the volume level at the first
sign of loudspeaker distress.
ON/OFF AND STAND-BY OPERATION
1. With the KCT plugged into the AC power source and in the stand-by mode (red
stand-by LED [2] illuminated), switch to the operational mode by pressing the front
panel power button (1) or power key (32) on the remote control. The blue power LED
(3) illuminates and there is an audible click. The KCT is ready for operation.
2. With the preamplifier output muted or the volume fully attenuated, select a source
manually through the front panel input select buttons (6) or through the input select
keys (39) on the remote control. Start playing the source. Use the level control knob
(14) or level keys (44) to set the volume to a comfortable listening level.
Note
The KCT automatically plays through the main zone until you select zone 2 operation.
3. To return the KCT to the stand-by mode, press the power button (1) or power key
(32).
Krell recommends leaving the KCT in the stand-by mode when it is not playing music.
If you wish to turn your system off:
Turn your system off if it will not be used for a long period of time.
1. Place the amplifiers in the stand-by mode.
2. Press the power button (1) or power key (32) to switch the KCT to the stand-by
mode.
3. Turn off the amplifiers using the power switch, or unplug the AC power cord.
4. Disconnect the KCT from AC power by unplugging the AC power cord from the wall.