PRESONUS VXP User Manual page 8

Ø IDSS Control. The VXP offers a very high quality transformer
and features an IDSS control (this control adjusts the drain
current on the input FET amplifier altering the even harmonic
levels of the signal being passed) with an adjustment range of
0% to 100%. The 0% position passes a pure signal. As the
control is rotated to the 100% position, the signal's even
harmonic series is boosted giving the signal "warmth" very much
like a vacuum tube or similar to the sound of analog tape
saturation. This remarkable effect gives you the sound of a tube
without the headache of uneven performance often encountered
with vacuum tube devices ("no tube to pick-up RF or to age
and become "microphonic").
Ø LED Meter. LED metering provides an accurate reading of
the input level and a fast reference of presence of signal.
v Smart Compressor with Pre-Sets. The VXP is equipped with a
Smart Compressor with 16 Pre-Sets designed especially for
processing voice.
Ø 16 Pre-Set Compression Curves. The Compressor section
of the VXP has 16 pre-sets with varying degrees of
compression ranging from multiple settings graded and labeled
"Light", "Medium" and "Heavy". These easy-to-use preset
parameters were derived from pro audio engineers with years
of recording experience to provide VXP owners with a wide
variety of "studio tested and proven" compression settings
uniquely suited for virtually any singing style or vocal
application.
Ø In / Out. The In/Out switch lets you compare the compressed
sound quickly to the uncompressed sound.
v Expander. The VXP's Expander section utilizes a concentric
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