The Protostar is the evolution of the Super FatMan envelope filter with even more pro level features. Built in LFO, 4 filter modes, full CV patch bay, and expression/CB input, this is the most powerful/versatile envelope filter on the planet. Also includes an end of chain compressor and dry wet mix for parallel filtering/compression effects!
Attack - How fast the envelope will react
to the incoming signal. Controls both
attack and release.
Threshold - How sensitive the envelope is to the
Env Amt - Attenuverter that controls how much
the envelope will affect the frequency of
the filter, either negatively or positively.
Resonance - Synonomous with feedback or Q,
this is a boost of the frequencies around the
Freq - Also known as cutoff, this knob’s
position dictates the resting place of the
LFO Rate - Make the LFO go faster or slower
with this knob.
LFO Amt - How much the LFO will affect the
Compression - End of chain compressor squashes
the wet signal to suppress unwanted honks, and
Dry / Wet - Amount of unaffected vs. affected signal
coming through the output.
Sidechain - Direct input to the envelope follower.
Normalled to the input, use this to have the
envelope follow an external source.
Exp Out - Output for the expression pedal
input. Exp isn’t connected to any control
internally and must be patched.
- Env Out - Always sending +5V until the
envelope is triggered, bringing the voltage
down to 0V and back.
+ Env Out - Sends a CV signal following the
envelope. Signal is 0V to +5V.
LFO Out - Constantly sends the triangle
wave LFO CV signal, reacts to LFO rate knob.
LFO Rate - CV input for control over LFO rate.
Sensitivity adjustable with internal trim pot.
LFO Amt - CV input for control over LFO amt.
Freq - CV Input for control over cutoff frequency.
Feedback - CV input for control over resonance.
Expression Input (back panel) - Plug a TRS
cable from any expression pedal into this, patch
the exp out to what you want to contol, and
9VDC, Boss Style Center Negative, 400mA. 1A supply reccomended. Do not exceed 9V.
1A supply recommended.
Internal Bipolar 12V power supply.
0-5V nominal CV range. All inputs/outputs protected.
LFO CV sensitivity and Compressor Gain adjustable
Relay true Bypass.
4.9" x 3.9" x 2.4" maximum dimensions.
Expression Pedal: 10k - 1M pot. TRS connection.
Patch Points - Mono or Stereo cable. Signals are mono.