Front Panel Functions - Koch Little Gristle Operating Instructions Manual

Thank you for choosing the LITTLE GRISTLE from KOCH. You now own a "state-of-the-art" all-tube
Single Ended full Class-A guitar amplifier of the highest quality. The LITTLE GRISTLE has been
designed and built by people who - from their own experience as musicians - take guitar sound and
quality very seriously. That is why this product was designed and built with the utmost care in order to
meet all professional standards. Our goal was not only to design an amp which sounds fantastic and is
easy to operate, but also to build it in such a way that it will serve you loyally for many years to come.
Please take your time to read this manual carefully before you switch on the LITTLE GRISTLE.
Thanks and lots of success with your new LITTLE GRISTLE !
CAUTION:
* BEFORE PUTTING INTO OPERATION READ THESE OPERATING INSTRUCTIONS
CAREFULLY.
* NO USER SERVICEABLE PARTS INSIDE.
* REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.
WARNING:
* TO REDUCE THE RISKS OF ELECTRICAL SHOCK, DO NOT REMOVE THE
COVER.
* TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT EXPOSE
AMPLIFIER TO RAIN OR MOISTURE.
* THIS APPARATUS MUST BE EARTHED.
* TUBES ARE HOT. DO NOT TOUCH DURING OPERATION.

FRONT PANEL FUNCTIONS

[1] INPUT: Input for all types of instruments, e.g.
guitars with single-coil, humbucker or active pickups.
[2] EXTRA: Increases the gain for adding extra
overdrive and distortion.
[3] GRISTLE: A Clean sound is achieved at lower
settings (1 to 4), at higher settings (4 to 10) overdrive
occurs which will produce more sustain and real
power amp distortion.
[4] TONE: Classic passive tone control for adding or
cutting high frequencies
[5] MORE: Controls the overall volume level.
[6] REVERB: Controls the amount of the Spring
Reverb signal mixed with the original dry signal.
[7] CAB FILTER ON/OFF: Activates or de-activates
the special speaker simulating filter [8] for direct
recording purposes.
[8] REC/PA:
This jack is an unbalanced mono output suitable for
recording or PA. Its signal is derived from the speaker
output. This signal is shaped by a special filter that
simulates the typical recording characteristic of a
microphone placed in front of a guitar speaker.
The output signal is at line level (-10 dBV).
E N G L I S H
[9] STANDBY SWITCH: Allows the LITTLE
GRISTLE to be placed in Standby, Low Power or Full
Power mode.
In Standby mode the tubes remain hot, but the
amplifier is not operational.
In Low Power mode the power amp delivers only 1/3
of the indicated power (4 Watt).
In Full Power mode the power amp delivers the
indicated power (12 Watt)
[10] POWER SWITCH: Turns AC power On (red
LAMP on) and Off (red LAMP off). When the switch is
Off the amplifier is completely shut down.
NOTE: When switching the amplifier On, leave the
Standby switch [9] in the "Standby" position for 5-10
seconds thus allowing the tubes to heat up before
switching to Low or Full Power mode.