ENSONIQ MR Rack, Руководство музыканта

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Chapter 8 —Insert Effect Parameters
To access the Parameters described on this page (unless otherwise noted):
Press Effects , turn the Parameter knob to select Insert Effect , and press Enter . Turn the Parameter
knob to select the parameter , and use the Value knob to change the parameter's Setting .
ENSONIQ MR-Rack Musician’s Manual 37
LPF Cutoff 10Hz to 20.0kHz Controls the boost or cut of the low pass filter frequency applied to the
input signal.
36 Guitar Amp
Output
L
R
Right
Left
EQ
(Mid 1 )
Preamp
Gain
HPF
PostEQ
Level
2- Tap
DDL
Gate Amp
Lo
Shelf
Mid 1 Mid 2
Hi
Shelf
Speaker
LPF
T his I nse r t E ff ect r ec r eates the wa r m sound o f a tube guita r ampli f ie r . I t does this by
emulating tube disto r tion cha r acte r istics. T his e ff ect is good f o r all st r inged inst r uments.
Guita r A mp is optimized f o r “ bluesy ” type sounds.
Parameter Range Description
Pre HP Fc 10Hz to 1.50kHz Filters out the low frequencies before the preamp. The higher the value,
the less low frequencies pass through.
Pre EQ Trim Off, -49.5dB to +24dB Controls the input level to the pre-amp EQ to eliminate the possibility of
clipping boosted signals.
Pre EQ Fc 10Hz to 20.0kHz Determines the center frequency of the parametric filter before the
preamp. Higher values have a brighter sound.
Pre EQ Q 1.0 to 40.0 Determines the width of the resonant peak at the parametric filter center
frequency. While the Filter center parameter determines where (at what
frequency) this peak will occur, the Q setting controls the presence of
the peak.
Pre EQ Gain Off, -49.5dB to +24dB Adjusts the amount of boost or cut applied to the parametric filter in
front of the preamp.
Preamp Gain Off, -49.5dB to +24dB Adjusts the amount of boost or cut applied to the incoming signal. This
parameter can be thought of as the primary distortion stage (clipping).
We recommend a setting of 0 dB, since these emulations were
optimized for distortion there. Lower preamp gains will result in less
distortion, while higher preamp gains will yield clipping distortion. For
low preamp gain, it may be desirable to use low tube bias values.
Master Level Off, -49.5dB to 0.0dB This parameter controls the output level of the main amp.
Tube Bias 0 to 100 For preamp gains approximately 0 dB, this parameter controls the
emphasis of even to odd harmonics which determines the tone of the
amp; mid values emphasize even harmonics and offer a warmer
(“glowing tube”) sound, while the highest values may sound like tubes
going bad. Tube bias and preamp gain are independent parameters. For
low preamp gain, it may be desirable to use low tube bias values,
because this more closely imitates the operation of a real amplifier.
Bias Attack 50us to 10.0s Controls the time it takes for the incoming signal to get to the Amp
Tube Bias. Generally the attack should be short.
Bias Release 50us to 10.0s Sets the amount of time after the incoming signal has ceased for the amp
level to shut down. Generally these times are longer than the attack
times.
Post HP Fc 10Hz to 1.50kHz This parameter filters out the low frequencies of the main amp prior to
the speaker. The higher the value, the less low frequencies pass through.
Amp BassGain Off, -49.5dB to +24dB Sets the amount of boost or cut applied to the low shelving filter.
Amp Mid1 Fc 10Hz to 20.0kHz Sets the center of the mid frequency parametric.
Amp Mid1 Q 1.0 to 40.0 This parameter is a bandwidth control that determines the width of the
resonant peak at the center frequency band. This parameter is equal to
the cutoff frequency divided by the bandwidth. By raising the value, you
can produce a narrower bandwidth.