Moog stage ii 사용자 가이드

Finally, the OVERLOAD parameter allows you to set the amount of signal clipping from none to soft to hard 
clipping as the amount is increased.  The results you get with OVERLOAD will depend on the settings of 
the oscillator waves and levels, and the filter cutoff and the filter resonance settings in addition to Overload 
amount.  Overload is not the same distortion you’d get from a fuzz box – it must be played with to get the 
best results. It can be quite subtly applied to add just a touch of ‘bite’, or aggressively applied to add a jagged 
edginess to the sound.

Filter Section controls:

Cutoff:
When the CUTOFF switch is selected, the analog edit control is used to adjust the filter cutoff frequency. 
The cutoff frequency is adjustable from about 20 Hz to 16 Khz.

  

As the edit control is rotated clockwise, the 

cutoff frequency is increased, allowing more of the signal harmonics to pass through the filter.

Resonance:  
When the RESONANCE switch is selected, the analog edit control is used to adjust the filter resonance. 
Resonance causes feedback in the filter circuit, adding harmonic emphasis at the cutoff frequency.  When the 
Resonance control is all the way down, the lowpass filter acts basically as a tone control, rolling off the high 
end of the signal as the Cutoff control is turned down.  As Resonance is increased, the filter begins to form a 
peak at the cutoff frequency.  This emphasizes harmonics near the cutoff frequency, and can result in a ‘wah-
wah’ effect when resonance is set fairly high and the filter cutoff is varied.  As the resonance is turned up the 
peak increases in strength until it begins to self-oscillate – creating a sine wave with the same frequency as 
the cutoff frequency.   
 
Keyboard Control Amount (KB AMOUNT):
When the KB AMOUNT switch is selected, the analog edit control is used to adjust the amount of post-
glide keyboard voltage that is routed to the filter cutoff frequency.  When the edit control is rotated fully 
clockwise, the filter cutoff follows the key played on the keyboard.  A higher key will cause a higher cutoff 
frequency. This allows a sound to retain its brightness as it is played higher on the keyboard.  

Envelope Generator Amount (EGR AMNT):
When the EGR AMNT switch is selected, the analog edit control adjusts the amount of the Filter Envelope 
Generator output that affects the filter cutoff.  The Envelope Generator Amount is bi-polar, as indicated by 
the legend on the panel, so the amount is 0 when the edit control dial is at the 12 o’clock position.  Rotat-
ing the control CW from that point adds a positive EG amount to the filter cutoff, while rotating the control 
CCW from that point adds a negative amount to the filter cutoff.

Overload:
When the OVERLOAD switch is selected, the analog edit control adjusts the amount of pre-filter and post-
filter clipping.  Overload can be used to warm up sounds and give them a distinctive tonal edge.  Advancing 
the edit control increases the amount of clipping from the subtle warmth of soft clipping to the ‘growl’ pro-
vided by the beginnings of hard clipping.  When set to 100%, Overload adds a volume boost of about +6dB.

Additional CV control:  
The FILTER jack on the side-panel is a CV input for external control of the filter cutoff parameter.  The jack 
accepts -5 to +5 volts, or an expression pedal like the EP-2.  A voltage applied to this jack is added to the 
setting of the filter cutoff control.  A one-volt change in the control voltage will change the cutoff frequency 
of the filter by about one octave.