ADA MB-1 owners manual version 2
The Contour parameters select a contour curve. These contour curves affect the basic tone
color of your sound.
The Overdrive parameter in the Tube Pre-amp section affects the amount of distortion you
get. The tonal character of the Overdrive is controlled by the amount of input level drive, and
your choice of contour curves.
The Master Level parameters let you adjust the overall level of the Pre-amp sections and
also the mix between Tube and Solid State tones -- either or both may be used at the same
time.
Compressor Section
The Compressor section adjusts the signal level to keep it relatively consistent above a
Threshold level. What this gives you is control over your dynamics. The Compressor makes
a loud attack softer and a sustained note louder even as it decays. The overall effect is to
keep the signal level constant. This can be useful in the studio when you don 't want to
overdrive a mixing board with too much signal.
The Compression Ratio parameter controls how much an input signal will affect the compressor output. For
example, a ratio of 4 to 1 means that if the input signal changes from 1 to 4, the output will change from 1 to
1.25. Higher levels of compression "squeeze" the signal more.
The Compression Threshold parameter sets the level at which compression
begins. Signals below that level pass through the compressor with no change in
level. Signals above that level are compressed at a ratio set by the Compression
Ratio parameter.
The Compressor Gain parameter sets the output level of the Compressor. Once the signal
has been compressed it can no longer reach its full input level. The Compressor Gain
parameter allows you to set the maximum signal level you want going into the following
sections.
Five Band Equalizer Section
The equalizer section of the MB-1 provides 5 bands of equalization. The equalizer allows you
to shape your tone by cutting or boosting the amount of sound in each band by up to 14 dB.
The 1..0 and Hi band sections are shelving equalizers. This means that their low and high
pass frequencies are fixed - only the cut and boost of these sections are adjustable. The 1..0
Mid, Mid, and Hi Mid are semiparametric equalizers. This means that you can adjust their
center frequency as well as the amount of cut or boost.
The LO band EQ section passes frequencies below 50 Hz. The LO Mid EQ section may
be adjusted for a center frequency between 54 Hz and 166 Hz. The Mid EQ section
may be adjusted for a center frequency between 170 Hz and 545 Hz. The Hi Mid EQ
section may be adjusted for a center frequency between 570 Hz and 1680 Hz. The Hi
band EQ section passes frequencies above 1800 Hz.
By adjusting the cut and boost and the center frequencies of the EQ section you can
emphasize a particular range of tones for just the sound you want.
Chorus Section
The Chorus section is an analog chorus which provides a rich, full swept comb filter effect.
The amount of chorusing is controlled by the Depth parameter, while the sweep rate is
controlled by the Rate parameter.
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