The Filternator

Is it a filter? Is it a resonator? Is it a filter bank? Yes- the new Filternator module is all of the above…with a difference. When developing the module and hearing how it treated signals, it was obviously filtering, but with high resonant peaks that were stronger than the incoming signal, at which point it was resonating up a storm. So what to call it? It’s resonating as much as it’s filtering, so we called it the Filternator!

It’s simplicity itself to use: plug your audio in the input, and the output goes to whatever you like down your signal chain. Use the wet/dry mix knob to control the amount of “filternated” signal you’d like to hear. Then comes the fun part: chose a mode, and start messing around with the switches. There’s a choice of three switches for the capacitors, and three switches for the coils used in the circuit. They can be used in any combination to set the filter frequencies and resonant peaks. If you like, automate the mix control with an external CV source.

The one thing you don’t do is power it up…except for the external control voltage for the wet/dry mix, it’s completely passive! But unlike other passive filters, this design doesn’t drag down your signal level with resistors in the circuit, because there aren’t any. By using inductors instead, the signal doesn’t get attenuated as it does in a standard passive filter. Instead, it will actually boost signal levels as it nears the resonance peak.

Talk about skiff friendly, not only does it not take any power, but it’s nice and slim, just 12mm deep behind the (nice and thick aluminum) faceplate.

Specs: 30mm wide (6HP), 12mm deep. Power requirements: none, CV input unipolar 0 to +5V. Range of cutoff frequency: approx. 296Hz to 3.4KHz according to switch settings. High pass/Low pass switch.

Here are a few no-talking demo videos:

Here’s the user guide, it’s pretty simple:

Price: $90.00 for one, or $160.00 for two, shipping included to continental US and Canada.

Please contact us for international shipping rates.

To order a stereo pair, use the buttons below.