Mattoverse Solar Sound solar sound The first two channels are

The first two channels are buffered high-impedance inputs for use with guitar/bass and the 2nd two channels are unbuffered low impedance inputs for use with line output devices like synths

The AirTrash is soft-touch relay true bypass and the Swell Echo is hardwire true bypass and they can both be turned on individually

While there are certainly new and absolutely insane tones to be discovered running them in tandem

see the demo videos below (the circuit is the same regardless of enclosure size except the CV Gate Rate Sync feature is not standard on the new smaller model):

Mattoverse Solar Sound solar sound The first two channels areThe Solar Sound is a beautiful and uniquely impractical solar powered effect pedal from Mattoverse Electronics. Consisting of a simple transistor based gain circuit that has been finely tuned to take full advantage of the low current and voltage provided by the solar panel, it provides everything from starved and choked gain tones, to light overdrive, and smooth distortion. It was designed for and works best when powered from a natural light source,