gizm0x x0x-heart MODs Eurorack Synthesizer Voice

The gizm0x x0x-Heart MODs is a Eurorack synthesizer voice that faithfully recreates the analogue sound engine of the legendary Roland TB-303. Designed around the classic acid bass architecture, it delivers the unmistakable squelchy character of the original while adding extensive CV control for seamless integration into modern modular systems.

At its core is the iconic resonant low-pass filter, complete with adjustable resonance, resonance boost, and envelope modulation for everything from smooth basslines to aggressive acid sequences. Dedicated Accent and Slide inputs recreate the expressive performance techniques that defined the TB-303, while additional controls allow accents to dynamically influence the filter response for even greater movement and articulation.

The module offers switchable sawtooth and square waveforms, with the option to combine both simultaneously. Additional features including bass boost, external audio input with selectable mixing, CV control over decay and envelope modulation, and separate VCF and VCA outputs make the x0x-Heart MODs a versatile analogue voice that extends well beyond traditional acid bass duties.

Features

• Analogue TB-303-inspired synthesizer voice
• Classic resonant low-pass filter
• Resonance Boost switch
• Accent input with level control
• Adjustable filter modulation during accents
• Slide input for authentic pitch glide
• CV control over envelope modulation
• CV control over decay
• 1V/Oct pitch input
• Bass Boost control
• Selectable saw, square, or combined waveforms
• External audio input with selectable mix
• Dedicated VCF and VCA outputs
• Designed for Eurorack systems

Specifications

• Module Type: Analogue Synth Voice
• Format: Eurorack
• Oscillator Waveforms: Saw, Square, Saw + Square
• Pitch Input: 1V/Oct
• Filter: Resonant Low-Pass
• Audio Input: External Input with Mix Selection
• Outputs: VCF Out, VCA Out
• CV Inputs: Envelope Modulation, Decay, Accent, Slide, Pitch

Video: https://youtu.be/lgBa2d7gsPo

Product Specs

• Item Number: 43170
• Make: Gizm0x
• Model: x0x-heart MODs
• Condition: Brand New
• Finish: Black
• Categories: keyboards-and-synths ⇒ eurorack
• Function: CV Modulation Filter Oscillator Synth Voice
• Made In: Japan
• MPN: gm-x0x
• Modular Grid: Eurorack ⓘ ＋
• Dimensions*: 18 HP 45 mm deep
• Power*: 100 mA +12V 10 mA -12V 0 mA 5V

* User contributed details