Vintage TDM/RTAS, Руководство пользователя

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Treble, Middle, and Bass : These knobs are the tone control of the amplifier, but they also
control the amount of distortion. If you, for example, have too much distortion in the bass
frequencies, try turning down the
Bass knob. (Electrically speaking, the tone controls are
located before the preamp distortion.)
The tone controls behave exactly like the real thing, except when all the controls are set
fully counter clock­wise. On the real amp, the amplifier would have become silent, as if you
turned down the volume. A lot of reasons
*
made us exclude this feature, so now when you
turn the Treble , Middle and Bass knobs fully counter clock­wise, that actually corresponds
to the knobs being set to a little bit over nothing on the real amp.
Vibrato, Speed and Intensity : Turn on the vibrato (which is in fact a tremolo) by turning on
the Vibrato switch. Use Speed to control the speed of the tremolo, and Intensity to control
the amount of the tremolo effect.
*The reasons are mathematical. Physical modeling is a pretty tricky thing, and one of the
most difficult parts is when a circuit becomes almost bypassed by a short circuit, and this is what
happens when you turn down the EQ knobs to zero on the real amp. In the computer world, this
will lead to numbers that are smaller than what the computer can represent, and this leads to filter
instability. So we decided to let the EQ knobs be almost zero instead of completely zero in order to
avoid these problems. Of course we could have worked around this, but we saw no point in
interfering with an otherwise good simulation, and besides, is that really a very useful feature?
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