Hughes & Kettner SYSTEM GUITAR COMBO ATS SIXTY - Manual (Page 3)

TURF OVERDRIVE CHANNEL
Valves need to reach a specific operating temperature, which means that it
takes a few seconds after switching on before they are ready for use.
l Valves are sensitive to shock. Allow the unit to cool off for a few minutes
before moving it.
The sound characteristics of valves do lend to change with age. You should
exchange your valves occasionally; the ECC 83 tubes used in the Sixty are
amongst the most frequently used and affordable types available. In normal
use, it should only be necessary to change the valves every few years.
(5) GAIN:
Adjusts the input sensivity of the TUBE circuitry and thereby the saturation. At
lower GAIN levels, you can achieve bluesy Clean and Crunch sounds.
In the specially marked high level section an automatic MID BOOST gets effective,
perfect for modern “hot rodded” Overdrive sounds.
The GAIN control influences the overdrive characteristics as well as the volume of
the TUBE OVERDRIVE channel. To alter the level, use the VOLUME control.
The TONE CONTROLS on the TUBE OVERDRIVE channel are active in
operation, and can therefore be used to boost specific frequency ranges. This can be
very useful for producing modern “hot rodded” distortion sounds. The filter
characteristics of the two controls are chosen so as to make selection of the
distinctive “creamy” lead and riff sounds easier.
(6) VOICE:
Voice adjusts a wide range of lower mids and thus controls the overdrive
characteristic. More “Voice” will make your guitar sound more “creamy”.
(7) BITE:
Bite controls the upper harmonics and the penetration of the guitar sound.
(8) VOLUME:
VOLUME adjusts the output volume of the TUBE OVERDRIVE and thus the
volume balance between CLEAN and OVERDRIVE.
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