A1
2023
The GRP A1 is a compact desktop/Eurorack monophonic analog synthesizer, the smallest instrument GRP makes. It pairs a single VCO (sawtooth, square, triangle with PWM and FM) plus sub-oscillator and noise into an 18 dB transistor-ladder lowpass filter with built-in distortion and key tracking. Two multi-wave LFOs with symmetry control and a sample-and-hold round out a bass/lead voice that runs standalone or as a Eurorack synth voice.
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We're compiling the full history of the GRP A1. Check back soon for production timeline, variants, notable users, and cultural significance.