DIY System80 Jove filter module with matte black and gold panel.

Item was built by an experienced builder with quality components and tested and calibrated.

The System 80 JOVE is a premium 14 HP Eurorack module that accurately recreates the unique, versatile sound of the classic 1980s Roland Jupiter-6 synthesizer filter. Built using a modern operational transconductance amplifier (OTA) core, it delivers the iconic "chirping" resonance, aggressive sweeps, and smooth frequency response of the vintage hardware in a reliable, modern format.Key Highlights

• 4 Multimode Configurations: Instantly cycle between a sharp 24 dB Low Pass, a warm 12 dB Low Pass (reminiscent of the Jupiter-8), a textured Band Pass, and a precise High Pass filter via a simple push button.
• Onboard Audio Mixer: Features two summed audio inputs—one direct and one with an integrated volume attenuator—allowing you to blend two signals right at the filter stage.
• Dual Frequency Modulation: Equipped with two frequency CV inputs, including a dedicated bipolar attenuverter for easy inversion of envelope and LFO modulation.
• Voltage-Controlled Resonance: Includes a dedicated resonance CV input to dynamically modulate the filter's feedback from subtle warmth to self-oscillation.
• Open-Source Heritage: Fully open-source hardware with publicly available schematics, making it a favorite for DIY builders and synth modders alike.