Ashdown Engineering Head Of Doom GEEZER BUTLER Bedienungsanleitung Seite 4

HEAD OF DOOM USER GUIDE:
INPUT - There is a single instrument input provided linked to
a PASSIVE/ACTIVE selector switch. The Passive input (switch
out) is high sensitivity and also high impedance to suit the
output from PASSIVE basses. The Active input (switch in) is
low sensitivity and lower impedance to suit the output from
ACTIVE basses.
INPUT CONTROL - The INPUT control sets the signal level
through the preamp in conjunction with the INPUT LEVEL VU
Meter. This is adjusted to give a reading of 0VU on the meter
for average playing dynamics with occasional peaks into the
red region. Please note that the setting of this may have to be
re-adjusted after modification of the EQ controls.
PUSH FLAT / SHAPE - With this button in its OUT position a
fixed E.Q. is superimposed on the preamp to give a bright but
punchy character to the sound. Pushing this button IN returns
the preamp to a Flat frequency response. This function may
also be controlled from a footswitch. For the footswitch to
operate this button must be in its OUT position.
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DOOM - This routes the signal either through a clean Solid
State amplification section (control on zero) or through
a Dual Triode Tube amplification/overdrive section in
order to add either tonal character i.e. warmth with the
control set at 9 o'clock, a slight edge in the sound at 12
0'clock through to an increasing degree of Tube distortion/
overdrive as the control is advanced to maximum.
A Mix of these two amplification sections can be achieved
with this control.
N.B. The degree of tube distortion provided by this control
will also depend on the setting of the INPUT control.
DOOM IN/OUT - This push button switches the valve drive
section IN or OUT. This function may also be controlled from
the Ashdown 4 way footswitch. For the footswitch to operate
this button must be in its OUT position.
E.Q. IN / OUT - This push button switches the Equalisation
section IN or OUT i.e. the Bass, Middle and Treble controls
plus the two sets of sliders placed between each of these.