Overloud Gem Comp76 FET Compressor and Limiter Plug-In - Manual (Page 21)

OVERLOUD GEMS SCULPTUBE
SCULPTUBE
The SCULPTUBE is a processor which adds valve-produced harmonics.
It creates an authentic tube coloration which ranges from slightly warmed-up tones to heavy
distortions thanks to its hyper-realistic tube warming and distortion simulation.
You can use the SCULPTUBE in many di ff erent ways. Three good examples are: Warm-Up, Distort
and Excite, which you can obtain as follows:
WARM-UP - With mild Drive settings you can recreate an authentic analog coloration on individual
tracks or mixes.
DISTORT - The SCULPTUBE can be used to overdrive the input and reproduce di ff erent kinds of tube
distortions, including Triode and Pentode responses.
EXCITE - Thanks to its built-in EQ and parallel processor you can revive the tracks by adding natural
harmonics to the high-end.
OVERDRIVE - Adds 20dB of extra gain to the distortion valve. When switched o ff the processor pro-
duces a gentle saturation: if switched on, highly distorted tones can be obtained.
DRIVE - Controls the amount of gain added to the input signal.
LINK - When LINK is switched on, the DRIVE and BIAS knobs are linked together. In fact, raising the
BIAS current the SCULPTUBE valve reduces its own gain, so it makes sense to compensate this lack
of gain by raising the DRIVE knob at the same time.
BIAS - Controls the amount of current through the tubes. At lower currents the tubes are under-
biased and the sound is inclined to be thinner and breaks up easily. At medium current settings
the
SCULPTUBE distorts least, and this is the typical setting for just warming up a sound. At higher
currents the tubes are over-fed and the tone becomes quite fat and harmonically rich.
DISTORTION TYPE P0 (Triode) - Reproduces the typical musical e ff ect obtained with triode valves, with
very rich 2nd harmonic distortion. Good for warming up a sound.
DISTORTION TYPE P1 (Pentode) - Pentode type distortion, with prevailing odd harmonics, which make
the sound more aggressive while retaining the valve character.
DISTORTION TYPE P2 (Special) - Is obtained with a pretty unusual way of con fi guring pentode valve,
which gives an extra octave at higher bias kind of response.
HIGH PASS - Controls a high pass (low cut) fi lter after the distortion valve. If set to OFF , the high pass
fi lter is bypassed. If set to 1KHz or 4KHz, it cuts the frequencies under the speci fi ed frequency
with a 6dB/oct rollo ff . This fi lter can be used to keep just the harmonic content generated by the
valve and con fi gure the processor as an exciter by mixing these harmonics with the Direct tone.
LOW PASS - Controls a low pass (high cut) fi lter after the distortion valve. If set to OFF , the low pass
fi lter is bypassed. If set to 9KHz or 6KHz, it cuts the frequencies over the speci fi ed frequency with
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