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Preamp two
This channel has been voiced primarily for overdriven tones although the overall sound
produced can be altered radically depending on where the different controls are set.
Using the BOOST fuction further increases the sonic capabilities.
Gain
This control adjusts the degree of drive in PREAMP TWO. Due to the design of the highly
responsive all valve preamp this allows adjustment of the tone from clean, through
crunch, to very dirty, adding the BOOST will then increase the sustain even further. Total
amount of gain available should be enough for even the most extreme rock styles. This
preamp is also very responsive to the players dynamics and use of the volume on the
guitar.
Level
This control sets the overall output level for PREAMP TWO and can be used to balance
the volume of the two preamps.
Treble, Middle & Bass
The TREBLE, MIDDLE and BASS controls on PREAMP TWO are also passive and
interactive, however, for this preamp the operating frequencies have been specifically set
for mainly over driven tones.
Reverb
Preamp 1, Preamp 2
These control the level of the reverb for each preamp respectively.
On the GA-30RV, and GA-60RV models the effect is produced by a six spring
ACCUTRONICS reverb tray in the cabinet.
The optional 5-way foot controller can be used to switch the reverb effect on and off.
N.B. Due to the amount of reverb available, in some extreme settings; i.e. loud, lots of
gain and lots of reverb, there may be occasions when the reverb springs start to self
oscillate, producing a low pitched tone on their own. If this should happen then it is
recommended that the gain, volume and/or reverb settings are adjusted to prevent this.
N.B. If both preamps are selected using the 5-way foot controller the reverb level will be
controlled by the PREAMP 2 control.
Master Volume
This sets the level of signal sent to the power amp and consequently the overall volume
of the amplifier.
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