TXX-1 SPECTRON

The 20CC TXX-1 Spectron is a Eurorack format dual oscillator inspired by vintage analog multisampling instruments such as the Mellotron, Chamberlin, Optigan and others. Spectron uses a unique combination of synthesis and sampling techniques to bring the rich, dreamy sounds of these classic instruments into Eurorack for the first time - while also offering new possibilities to manipulate, warp, and mangle them into brand new textures.

More than just a simple sample player, Spectron's sounds are based on full-length recordings of every key, played on vintage instruments. These are then blended, re-pitched and cross-faded to seamlessly track any volt-per-octave CV and gate you can throw at it.

The module's right hand side offers a selection of timbre shaping controls not normally found on sample based intstruments, allowing you to apply FM, hard sync, and pulse width modulation. These are tuned to range from subtle modulations that recontextualize familiar sounds into something fresh; through radical transformations that are barely recognizable; and all the way to harsh, clangorous dementia, with continuous CV control of all points between. Each timbre CV section can individually be assigned to either voice, or to both.

Spectron also contains a built-in LFO and a built-in ASR envelope, allowing it to be used standalone as two complete synthesizer voices.

Spectron is currently still in development, with plans to ship a production version in late 2025 or early 2026. If you're interested in Spectron, sign up for email updates below. For all enquiries about Spectron or 20CC, please contact us here.

• More than 20 "tapes" recorded from vintage instruments, with the possibility of future expansion.
• Dual oscillator design: Voices A and B can operate independently or in tandem.
• Each voice has a volt-per-octave CV input to control pitch, as well as a gate/trigger input to trigger the samples' attack portion as well as the built-in envelope. The inputs of Voice A are normalled to the inputs of Voice B when nothing is plugged in to the latter.
• 3 CV-addressable timbre-shaping controls, each with dedicated attenuvertor:
1. FM - Modulate A's phase with B, or B with A's, or cross-modulate. Bell-like percussion, sub-octave overblown tones or harsh static are all there.
2. SYNC - A unique form of hard sync, this control does not sync A to B or vice versa - instead it allows direct adjustment and CV control over the sync ratio.
3. WAVETILT - A wave-shaping control similar to pulse-width modulation, this squishes the waveform left or right within a single cycle. Sometimes subtle, sometimes extreme, this control comes alive when used in tandem with the sync control.
• Timbre controls and CV inputs can be assigned to A, to B, or to both.
• Timbre control CV inputs are normalled to the built-in LFO, which has selectable basic waveshapes.
• An optional built-in ASR envelope can control the amplitude, turning Spectron into two complete synthesizer voices without the need for other modules.
• An assignable CV input allows external modulation of multiple timbre controls at once, LFO and envelope parameters, or even CV scanning through the available tapes.