YOUR FREE MODULAR SYNTHESIS RIG
Blocks Base gives you the essential building blocks for modular sound design inside REAKTOR PLAYER. With 24 fundamental synthesis modules, you can create your own custom synthesizers and experiment with different synthesis techniques.
🛠 24 synthesis and utility modules
🎛 Includes oscillators, filters, ADSR envelopes, LFOs, and more
🎹 MIDI and CV connectivity for integrating external hardware
🎵 35 pre-built modular Racks to explore and modify
POWERED BY REAKTOR PLAYER
Blocks Base runs inside REAKTOR PLAYER, a free synthesis engine that also hosts a wide range of Native Instruments and third-party synths.
🎚 Patch together Blocks with intuitive color-coded cables
🎶 Experiment with additive, subtractive, and FM synthesis
🔄 Combine with third-party Blocks from Toybox, Unfiltered Audio, and more
35 MODULAR RACKS TO EXPLORE
No experience? No problem. Blocks Base includes 35 pre-built Racks to learn, play, and modify.
📚 5 tutorial Racks for beginners – Learn synthesis step by step
🔊 Creative sound design Racks – Tweak and experiment with modular sounds
🎼 Performable patches – Play with modular synthesis in real-time
SYSTEM REQUIREMENTS
📀 Mac: macOS 10.14, 10.15, 11 (latest update), Intel Core i5, 4GB RAM
💾 Windows: Windows 10 (latest Service Pack), Intel Core i5 or equivalent, 4GB RAM
🌐 Internet connection required for activation
🖥 Supported formats: Stand-alone, VST, AU, AAX
GET STARTED FOR FREE
Blocks Base is included in KOMPLETE START, the free bundle with 2,000 sounds and 6GB of instruments & effects. Download it today and start building your own modular synths!

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