Altar is a 3-pole state variable discrete filter.

Its discrete core is a brand new design made of modern discrete transistors. The filter can morph continuously from Bandpass to Lowpass to Highpass via CV.

By changing the input gain the character of the filter can go from very clean and vocal to a more distorted acidic sound.

Technical details

Eurorack 3U module
12HP wide
33.5mm deep (including connector)
Max power consumption: +12V: 37mA | -12V: 32mA | +5V: 0mA

2 inputs, In I with variable gain, In II with fixed gain
1 output, state variable with the Color setting
Voltage controlled Resonance
Voltage controlled Colour