The 3003 filter is a voltage controlled, discrete analogue 18 db/oct ladder low-pass filter, employing hand-matched transistors.
The 3003’s RESONANCE circuit at max will sing out more than the TB’s signature chirping in a fun, bubbly, if washy, poorer relation, Mini “clone-ish" way; use it tastefully, or throw moderation to the wind for overwhelming chirp force. The 3003 filter has the most gentle sonic touch of its partners in the Boomstar fold, but nevertheless is quite capable of shaping precise, very dynamic tone. Whether or not this STUDIO ELECTRONICS filter is filling its traditional baseline boxing niche, driving a harsh, liquid, acid-like tone, a softer more rubber-bandy SH-101-ish presence, or out of the bass range
altogether, leading the way, all is within easy reach of this surprisingly warm and versatile VCF.
The 3003 can be distinctly vocal at times, especially when one is willing to put grittier, more distorted desires aside.
The 5089 filter is a voltage controlled, discrete analogue, 24 db/oct transistor ladder, low-pass filter, employing hand-matched transistors. The ladder low-pass filter—a subtractive analogue sound synthesis foundation—in its lowest FREQUENCY setting removes, or cuts off higher frequency harmonics; its RESONANCE or Q circuit emphasizes those harmonics to the point of “squealy,” giddy self-oscillation, tracking the keyboard in its FULL setting quite nicely if seeking an alternative sine wave.
The 5089 has the roundest, slickest tone of all the Boomstar’s filters. Go easy on it, and round, creamy buttery flavours wrap the oscillators in earthy warmth; smash it and a meaty, satisfying overdrive, and a maximum harvest of vintage 1960s and 1970s organic-sounding, second-order harmonic distortion fill the plate. Every setting is balanced and bountiful. Looking for
traditional R ’n B baselines and leads? Focus here on the rich saturation of this benchmark filter and its symmetrical cascades of generation-stretching timbres. All BOOMSTAR MODULAR filters are hand-built in the U. S.