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The Vamp four is an all-purpose four channel valve instrument line
pre-amplifier/direct input device that has a multitude of uses in either a live or
recording situation.
When using the VAMP four as a front end the sound is full , rich and
can be of high harmonic content of which the amount can be completely
varied by the appropriate controls.Nasty peaks are smoothed out without the
loss of top register frequencies and the lower frequencies sound tight and
wide.
Instruments such as bass or guitar sound like they have an organic
glow that tames transients and glues the bottom end for a solid musical
foundation.Synthersizers and keyboards like Fender Rhodes can be driven
into subtle distortion that can loosely resemble tape saturation or a powered
amp and speaker.Drum machines or live drum tracks can be sculpted to
crunch and pump.With the right pad/gain settings and EQ the VAMP four can
take any signal and turn it into a musical delicacy with heaps of character .
The same can also be said of the VAMP four when it’s used as an
audio processor for pre-recorded tracks or as a mastering device. Digitally
recorded tracks fed through the VAMP four seem to sparkle with presence
compared to their un-treated counterparts.Signals sound more focused and
can be either polished with clarity or driven with some subtle distortion
or colour.
Features include high impedance input ,variable gain/pad control , two
band switched passive EQ , variable output level and an electronically fully
balanced buffer that feeds an XLR balanced output and a 6.5mm TRS
balanced phono output that can be used un-balanced as well. All signal path
circuitry is Class A discrete and the only integrated circuits or chips involved
are in the LED driver circuit.
Unlike cheap designs , the valves are run on a proper High Tension
voltage rail with a filtered DC filament.The circuit is based on the Sebatron
designs of AXIS and VMP series preamps.
Whatever the situation , be it live or recording , the VAMP four is an
impressive creative tool.
1/ Introduction