Not very easy to find info on Jasper features, but based on
JasperSynth β A Do-It-Yourself Clone Vintage Synthesiser and photos it looks like an EDP Wasp clone, with these features/changes:
- external audio input
- MIDI-in (with additional MIDI PCB:
JasperMIDI PCB β JasperSynth)
- a mixer for osc1, osc2 and external in
- notch filter
- hold button
- some original components have been changed
So comparing JJC Wasp and Jasper:
- JJC Wasp has a biger, solid steel/wood enclosure and is heavier. Depending on your preferences, this can be an advantage, or you might prefer a smaller footprint of Jasper.
- JJC Wasp has these additional features: 4 CV inputs for controlling the filter and PWM, distortion and additional PWM LFO.
- Jasper has a mixer for osc1, osc2 and external in (similar to original Wasp Deluxe)
- Jasper has some different components from the original whereas JJC Wasp has original components (not 100% sure, check with the builder). Not sure if this affects the sound.
- You can get JJC Wasp fully built, while Jasper is a DIY kit. But I'm sure you can find someone to build it for you (on muffwiggler or somewhere else)
- Jasper is cheaper I think
As an owner of JJC Wasp, I think it's a great instrument and built like a tank. But I also woudn't mind a Jasper for live gigs