Bastl Instruments Softpop 2 Synthesizer

Bastl Softpop 2: Radical Sound Exploration in Semi-Modular Form

The Bastl Instruments Softpop 2 pushes boundaries for semi-modular synths, blending analog warmth with unconventional digital control. As a rare instrument excelling at both melody and noise, it provides a playground for experimental and traditional synthesis alike. This model is designed for those who want a hands-on interface, ultra-flexible patching, and the ability to morph simple patterns into complex soundscapes. At its core, the Softpop 2 fuses a modular analog heart with a sequencer and quantizer 'brain,' unlocking unpredictable interactions and deep creative potential. In the studio, on stage, or processing external audio, it delivers tools for sonic adventure.

Standout Features: Unique Cross-Modulation and Sequencing

What truly sets this model apart is the POP/pixel cross-modulation circuit, making subtle to radical timbral shifts possible by intermodulating oscillator and filter frequencies. Instead of just an 8-step sequencer, you get pattern chaining, scale morphing, varied playback modes, and live FX—so melodies and textures can transform instantly. Explore deep modular integration through a 37-point patchbay, the dynamic light orb, and a broad CV toolkit (sample & hold, summing, attenuverting).

Analog Sound Engine and Patchability

Every synthesist values sound quality and flexible routing. The Softpop 2’s analog signal path—with triangle-core VCO (PWM, pulse/triangle outs), multi-mode 'Infinity' filter (lowpass, bandpass, highpass), and a looping envelope—lets you sculpt classic bass, wild textures, or feedback. With the 37-point patchbay, modulation can be rerouted, feedback loops built, or external signals processed by filter and VCA.

• Oscillator: Triangle-core, triangle/pulse outputs, PWM, auto-tuning — delivers stable, diverse waveforms for wide tonal palette
• Filter: Resonant, state-variable, multi-mode (LP/BP/HP) — enables powerful timbral shaping and even self-oscillation
• Rerouting modulation and creating feedback loops is simple, thanks to a Eurorack-compatible 37-point patchbay.

Digital Control and Sequencing Power

Sequencing sits at the heart of this model’s creative appeal. You can chain patterns, morph scales, and apply FX in real time with the 8-step sequencer, which offers eight user-editable scales. Chord progressions, evolving patterns, and generative sequences are all possible on the fly. Real-time controls—slide, tempo, gate probability, step FX—make live improvisation natural. MIDI and analog sync keep everything connected, whether you use DAWs or hardware setups.

• Sequencer: 8 steps, 8 patterns per bank, 8 banks — supports chaining, scale changes, and live FX
• Quantizer: 8 user-definable scales, MIDI control — enables tonal or atonal patterning, chord sequencing
• Modern and vintage setups are easy to integrate using DIN MIDI, analog sync, and USB power.

Performance and Connectivity Benefits

Portability (USB-powered), panel-labeled controls for instant access, and the visual light orb mean Softpop 2 fits modern workflows. The external input with gain/saturation turns this instrument into an effects processor for guitar, drum machine, or synth, while CV/gate outs control other gear. You can mount it in a Eurorack, use the XY crossfader, and enjoy broad MIDI/CC support as your system evolves.

• External Input: Process audio through filter, VCA, overdrive — brings dynamic processing to any signal
• Envelope: Flexible attack-decay, looping (LFO), multiple routings — supports creative modulation shapes
• The dynamic light orb gives immediate visual feedback, enhancing live performance and patching workflow.

Who Is It For: Explorers and Modular Sound Designers

Inventors of new sounds, modular enthusiasts, and experimental musicians will find this model an inspiring platform for synthesis that pushes boundaries. It’s ideal for anyone wanting analog warmth with digital control, evolving sequences, or unconventional patching. If you love hands-on modulation, external audio processing, or crave a synth that rewards curiosity, the Softpop 2 brings uncommon features to this price tier. Use it with Eurorack or on your desktop to shape music from chaos and order alike.

Bastl & Casper: A Decade of Sonic Innovation

The Softpop 2 was developed over a decade of collaboration between Bastl Instruments and Casper Electronics, engineered by Peter Edwards and Václav Peloušek. Inspiration comes from the cult Benjolin synth, and Softpop’s design philosophy celebrates playful interaction, unpredictability, and a fearless approach to synthesis. Each detail—from cross-modulation circuits to its performance-ready sequencer—reflects a passion for musical discovery.