Step into the world of modular synthesis with the Grp Synthesizer A1, a compact yet powerful semi-modular analog synthesizer designed for both beginners and seasoned sound sculptors. This desktop wonder allows you to explore the rich and warm textures of subtractive synthesis without the need for a towering rack of modules. At its heart, the A1 features a genuine analog VCO, offering a palette of triangle, sawtooth, and square waveforms complemented by a sub-oscillator. This creates a robust foundation for crafting anything from smooth bass lines to shimmering leads.

The integrated 18dB/Oct lowpass filter can be driven into self-oscillation for those who crave intense sonic exploration. With two versatile LFOs, you can shape your sound with precision, while the ADSR envelope generator adds dynamic expression. The A1 stands out with its internal MIDI-CV interface, making it a breeze to integrate with your existing MIDI setup or favorite sequencer.

Although the A1 is pre-patched for immediate gratification, its semi-modular design invites experimentation. Use the patch points to explore new soundscapes by re-routing signals internally or incorporating other modular gear. Whether you're aiming for classic analog warmth or avant-garde sound design, the Grp Synthesizer A1 is your gateway to endless creativity.

Key Features:

• Analog semi-modular synthesizer
• Fully-analog signal path
• Onboard MIDI-CV converter with Glide and Pitch Bend controls
• Analog VCO with triangle, sawtooth, and square waveforms
• Sub-oscillator and noise generator
• 18dB/oct lowpass filter with resonance, distortion, and note tracking
• Two LFOs with shapable triangle/sawtooth and pulse waveforms
• Sample and hold on LFO 1
• ADSR envelope generator may be routed to VCO pitch, VCF cutoff, and VCA CV input
• Six patch point inputs, including external 1V/Oct, Gate, and External audio input
• Main and headphones output
• MIDI DIN input on the rear
• USB-C powered

Owner's manual