Boomstar Modular 4075 Filter

The 4075 filter is a discrete, voltage controlled, 24/db/oct cascaded trans-conductance low-pass filter, that features six pairs of hand-matched transistors. In its lowest FREQUENCY setting, it shaves off higher frequency harmonics; its RESONANCE or “Q” circuit pushes those harmonics past the self-oscillation boiling point, projecting a thumpy, thrashing squeal with explosive low to mid-range power and depth.

The 4075 is the most requested of the Boomstar filter models. It weaves dreams with “glidey” 70s basslines, and is a natural for leads. Aggressive and articulate, this fresh ARP can snap punishing kick drum sounds out as well as color with bright, edgy, string tones for essential arpeggiation.

Potentiometer Potential
Three attenuverter and four attenuation pots control the FREQUENCY, RESONANCE, FREQ CV 1, RESO CV, FREQ CV 2, INPUT and OUTPUT, delivering smooth, detailed and complex expression.

Switch it Up
Classic Minimoog FULL and HALF strength filter frequency keyboard/voltage tracking for rounder low end with brilliant highs.

Patch it Up
Seven patch points: 1 V/O, FREQ CV 1, FREQ CV 2, RESO CV, INPUT and 2x OUTPUT direct the deepest manipulation.