Studio Electronics 3003 Filter

The Studio Electronics 3003 Filter is a classic analog filter designed by Studio Electronics. It is a 24dB/octave low-pass filter with resonance and cutoff frequency controls. It has been used by many artists, including Aphex Twin, The Prodigy, and Orbital.

The filter works by allowing only frequencies below the cutoff frequency to pass through, while attenuating frequencies above the cutoff frequency. The resonance control allows the user to boost the frequencies around the cutoff frequency, creating a more pronounced effect. The filter also has a dedicated envelope follower input, allowing it to be used as an envelope-controlled filter. This allows the filter to be used to create dynamic filter sweeps and other effects.