CharBooster is a composite overdrive vst effect tailored specifically to be used as booster in front of any virtual amplifier model.
It essentially consists of a pre-emphasis filter section designed to provide a variation of voicings for your instrument followed by a saturation circuit that excites the signal with harmonics while still being as transparent as possible. The UI is not trying to look like a hardware stomp box but rather has a range of meters and scopes to provide an insight on what is going on with your signal.
The effect’s controls are broken down into 3 sections:
Amount – sets the amount of the filtering applied.
Character – selects one of the pre-configured filters:
– Shrill – boosts the top frequencies enhancing the presence of the signal
– Bright – boosts the high frequencies adding clarity and brightness
– Tight – rolls-off the low end to reduce the muddiness of the high-gain amps
– Flat – bypass of the filtering stage
– Fat – boosts the middle frequencies for the best high-gain tone
– Warm – rolls-off the high frequencies (good for taming single-coil pickups)
Harmonics – sets the amount of the harmonics introduced by this stage.
Mode – selects the configuration of the stages:
– Off – bypass the saturation stage
– Tube – pre-amp stage based on a single 12AX7 triode
– Tape – simple magnetic tape model
– T-n-T – tube preamp followed by the tape model
Level – sets the output gain of the booster from -6dB to +24dB.
On the top of the effect’s window there are 5 more buttons (from left to right):
Enable the effect.
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The tube model used in the saturation stage is similar to the one used in Softamp 3OD, however the modeled circuit is different.