Blue Lantern
Asteroid Operator VCF Filter - 23HP (2014 Black)

Be the first to review this product

Item: N13-2778

Availability: Out of stock

Free Domestic Delivery
World Wide Shipping
Asteroid Operator VCF Filter - 23HP (2014 Black)


This is a "chameleon filter" with the use of the three middle switches and Q drive knob the user can dial in a big spectrum of tones and wave shaping sounds.  This module uses blue lantern's new 18 gauge wire adapter. The adapter allows the module to use thick wire instead of the smaller gauge ribbon cable.  This adapter is compatible with all doepfer/pcb 16 pin buss boards. This guage wire will improve noise floor and will decrease module to module bleed thru..

The module uses two v2164 ic chips to make it's crazy 8 filtered outputs. It also uses an internal 5v reference regulation specific for the cutoff, rez and VCA knob controls. This will stabilize any voltage swings in your case. The front 40 pin solder points do not contain any hazardous voltages and -5v is the highest voltage.


  • 8 filter output combinations
  • Standard state variable bp, hp and lp filtering (for "classic" synth sounds)
  • State variable bp, hp and lp filtering by use of the switches
  • Dedicated linear VCA
  • Can act as a sine wave generator that can be pushed into trapezoidal shapes to sound 'tube' like
  • Has an on board sub harmonic generator with two sub frequencies you can mix to create fat chord sounds
  • 2 bi-polar modulation inputs, FM has AC/DC/Over switch, Mod has flip/flop & AC/DC switch. FM has buffered output
  • 2 octave sub generator
  • freely patchable linear vca based on the v2164 ic
  • 2 direct cv inputs
  • 8 different filter combinations: ranging from bp/hp/lp & phaser, all available simultaneously
  • 4 stage diode limiter switch, with selection of internal capacitor
  • 2 stage diode limiter switch
  • A 'pluck' hack switch
  • The cutoff range can be adjusted (500k), 
  • 1v/oct can be calibrated (1k), 
  • resonance range can be adjusted (100k) and 
  • LP floss level output can be adjusted


Questions on Asteroid Operator VCF Filter - 23HP (2014 Black)

No questions asked yet

Ask Your Own Question


  • Eurorack Module
  • +12V: 108 mA current draw
  • -12V: 96 mA current draw
  • 23 HP Wide
  • Roughly 4 cm deep

Customer Reviews

Write Your Own Review

You're reviewing: Asteroid Operator VCF Filter - 23HP (2014 Black)

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars