CharBooster is a composite overdrive 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 divided 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:
The tube model used in the saturation stage is similar to the one used in Softamp 3OD, however the modeled circuit is different. The tape model is a very simplified one. It has only the nonlinear transfer curve and dynamic frequency response modeled. Wow & flutter effects as well as phase smearing were omitted keep the CPU consumption low. It is loosely based on the Ampex ATR-102 tape recorder.
- 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:
- Enable the effect.
- Stereo mode.
- 16x oversampling.
- Check for updates.