The GRP AA1 is the smallest GRP synthesizer you can buy at the moment, but sonically it is anything but small. Of course you have to live with some limitations, e.g. that it is a single oscillator synthesizer. But you do have a sub-oscillator and a noise source that you can fade in. The single envelope is routed to the filter cutoff frequency and can also be applied to the VCA. There are also two other options available for the VCA: Gate + Release and Hold. With its many CV inputs and outputs and the well-implemented MIDI interface, you get a small synthesizer with great potential. Yes, it has limitations, but the sound, size and price make the GRP A1 a good choice if you are looking for a analog mono synthesizer.

Let’s listen to the GRP Synthesizer A1 – a very small analog monosynth with a high-quality sound, MIDI, CV connectability – it can be used stand-alone in its very solid case, or mounted in a eurorack modular synth. It has a good size for jamming and a quality feel.

The sound is similar to the bigger GRP synths. The filter design has a lot of character and is capable of producing formant/vocal-like sounds and a liquid sounding resonance. The great sounding distortion parameter offers many more options for designing sounds. With its MIDI and CV/Gate inputs this is a synthesizer that fits in all studio or live-environments.

Learn more about the GRP Synthesizer A1: https://schneidersladen.de/en/grp-synthesizer-a1