Prolude Amplification KO750, Руководство пользователя

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5—8
5 Controls and functions
5.1 The front panel
5.1.1 Active
Input jack for active instruments.
5.1.2 Passive
Input jack for passive instruments
Note:
There is no significant difference between the two inputs other than the input impedance and sensitivity. The
passive instruments and the preamplifierless piezo pickups „prefer” the Passive input, because of its higher
impedance and sensitivity.
5.1.3 Gain
This controls the overall signal level of the preamplifier section. Various instruments produce different signal
levels. The Gain control helps you to set these to the ideal signal level for the preamplifier section.
The two colour / green – red / LED – placed right from the Gain knob - is your feed back to set best signal
level.
The Gain setting is OK, if the LED is blinking between green and red. It is OK to go red when you make a
powerful plucking.
Note:
The setting described above is not a rule. Adding more Gain will not cause any problem. In such a case you
get a larger signal level with some drive. In some situations this can sound good. At this point you have to
consider the power handling of your speakers, because the overdriven sound strains them more.
If you set the Gain too low the preamp section will not send enough signal to the power stage and the output
power may be not enough and may also detain the proper functioning the Compressor.
5.1.4 Bright
Boosts the highs adding brightness to your sound.
5.1.5 Shape
Mildly boosts the lows and highs whilst cutting the mids. You can switch on this function also with the first
button of the Footswitch. In this case, however, the button on the front panel has to be in inactive position.
5.1.6 Boost
Activates the Boost channel.
The Drive knob controls the signal level in the distortion section, while the Tone gives a possibility to control
the overall color of the distorted signal.
If you turn left from the center position then get a deep rich warmer sound and moderate mids, or turn right to
get dominant mids.
The Level is intended to set the Boost channel's volume.