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To get a feel of the Band Pass mode plug in a harmonically rich sound like a chord or a 
drum  submix (a drum loop), listen to how the band pass lets you emphasize a narrow 
band of  frequencies from the sound source while cutting out the others. 
 
Increasing the resonance effectively narrows the frequency band and increases its gain  
(volume). The Band Pass can also be very useful on single sounds and it is essential in 
synthesizing drum sounds. The sounds in the classic analog drum machines of the past 
are synthesized using noise sources, oscillators, envelopes but most importantly, yes 
you guessed it right, band pass filters!
 
We hope you enjoy your stay on Tiptop Audio’s Forbidden Planet. 

BP IN

HP IN

LP IN

VOLUME

Audio Inputs: 

plug audio into one or more inputs

Filter: 

Frequency Cutoff

Attenuates

 the CV input jack

Cutoff CV control input:

Don't be shy, try plugging audio

into this jack too

Audio Out

Additional CV control

with no attenuation

Resonance Control: 

Watch out this one can get 

aggressive

Output Volume

8.

9.

http://tiptopaudio.com/forbidden-planet-analog-filter/

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