Jacks located on chassis bottom in sequence shown above
1.) External Speaker -
this is a 2-conductor, 1/4” speaker output jack. Rating is 8 ohms minimum. For full power, use an
8-ohm speaker load. Higher impedance loads will result in lower power levels to the speaker. The signal path to the internal
speakers is disconnected when using this jack.
2.) Direct (SPKR Emulated) -
this is a 3-conductor, XLR output jack for plugging into Lo-Z microphone inputs as found
on PA or recording mixers. It is intended in place of external mics or used as a built-in direct box. Great effort was made in
emulating the actual speaker sound.
3.) Effects Return -
This switching 2-conductor 1/4” line level input jack is the return from an external signal processor
such as a digital delay or EQ. By using this jack, you break the signal path between the preamp output and power amp
input.
4.) Effects Send -
this 2-conductor 1/4” line level output jack is the send to an external signal processor. It can also be
used as a preamp output and it does not break the signal path between the power amp and preamp. The front panel
volume and tone controls do affect the output of this jack. The output of the speaker is not emulated, so this is not a good
choice as a substitute for mic-ing the amp.
5.) CD/ Tape Input -
this is a 3-conductor 1/4” line level input jack that allows playback from an audio device. The volume is
controlled by the device plugged into this jack.
6.) Ext Tap FT Switch -
this 2-conductor 1/4” switching jack replaces the Toggle Tap switch on the top panel. This is a nice
feature to have, because it allows you to change the selected effect parameter in real time with your foot while playing.
Using the jack disables the top panel switch. The jack accepts a non-LED single button momentary foot-switch. This foot-
switch is not included with the amplifier. Kustom model KACFS-101M can be purchased separately. Most keyboard sustain
pedals are this type and can also be used. (NOTE: most single button foot switches used on analog instrument amplifiers
are alternate contact (the ”push on/push off” type). Using this type of switch will give unsatisfactory results but will not dam
-
age the amplifier.)
7.) Main FT Switch -
this 1/4” stereo jack connects a foot-switch to the amplifier. It uses a special circuit to decode the
3 switches through a simple stereo cable. The tip selects the Rhythm or Lead channel. The ring is multifunction for the
overdrive on/off switch and the effects active/off switch. This foot-switch is not included with the amplifier. Kustom model
KACFS-301 must be used to enjoy all the features. In an emergency, a mono single-conductor shielded instrument cable
and single button foot-switch can be used to allow switching of the channels only. In this setup, the LEDs will not be visible,
but the foot-switch will select Rhythm or Lead channels. The top panel overdrive on/off and effects active/off switches will
still function.
