The Tube Amp Volume sets the output level sent from the amplier model.
This determines the overall volume of the organ, and is used to provide volume
compensation between presets. This is strictly a volume adjustment, and has
no effect on the tone of the amp.
The Bass and Treble knobs control two shelving equalizers helping to shape
the sound of the amp.
Tube Amp Bass boosts or cuts the bass frequency range and can give amplier
distortion a fuller sound.
The Tube Amp Treble setting affects the high frequency tones sent through
the amplier. This can be used to reduce the high frequencies of the output
sound, and create a more mellow output from the B4.
Cabinet Settings
The last part of the Tube Amp controls is the Cabinets panel. Here you choose
the different cabinet models available as a tonal addition to your organ sound.
Below are descriptions with some comments concerning sound character.
Please use the comments as only rough guidelines. Most of the cabinet
models can be very variable in sound depending on the settings of other B4
parameters. Feel free to experiment.
Rotator 122 Open: This cabinet has an open, direct sound and is well-suited
for everything rock.
Rotator 122 Closed: If you are looking for that typical jazz avor, use this
cabinet.
Rotator 147 Open: This one also provides very nice jazz tones. The microphones
are placed off-axis in this model and the sound is a bit softer than with the
closed 122 model.
Rotator 147 Closed: Yet another setting similar to the Rotator 122 closed.
Again, the microphones are placed off-axis and the sound character is more
on the soft side.
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