This is used to compensate for the differing levels of output on both modern
and vintage guitars, and their varying styles of pickups and on board
electronics fitted. The trim level control should be adjusted so that the
saturation l.e.d. blinks occasionally when a note is struck firmly. It is per-
fectly ok to drive the trim level harder so the saturation l.e.d. comes on more
frequently if the want a slightly rough edge to your sound. Note the trim
level is not a volume control and must be driven to achieve correct gain
structure and tonality.
This indicates the correct drive level for the preamplifier and should be set
up as described in the trim level. It is perfectly normal to have the saturation
l.e.d. flashing occasionally.
Adjusts the amount of low frequency either cut or boosted. Increases the
amount of low frequency present, and also broadens the bandwidth giving
the bottom end a wider feel.
Adjusts the amount of lower midrange present.
Broadens the overall midrange by changing the bandwidth and band
shape. Gives the feeling of a much thicker mid spectrum. Also increases the
harmonic mid content.
Changes the centre frequency of the low mid control.
Works primarily in the upper mids and lower highs.
Works in the upper highs to create a real transparency in the overall sound.
In essence functions in a similar fashion to a presence control on a full valve
amp.
Boosts the top end for those who like it extremely bright.
Adjusts stage level only. Both D.I. output and effects send are un affected
by this control. The volume control should be turned down prior to switching
the unit either on ,off, or in or out of standby.
Mutes the outputs including the D.I. whilst leaving the heaters on in the
valves for instant start-up. Note: the red L.E.D. will illuminate when the
amplifier is in the standby mode. When the switch is in the out position the
amplifier is in standby, when pressed in the amplifier is in normal operation
mode.
Line level output to drive professional effects units. Standard mono 6.3MM
jack plugs are used. Some pedal type effects may be best used between
your guitar and the amplifier input, depending on the quality of the effect
unit.
The output of your effects unit plugs in here.
trim level
saturation l.e.d.
bass control
low mid control
mid image
mid shift
hi mid control
high control
bright
volume
standby
effects send
effects return
Labsystems VP300S front panel controls
