There is more than one artist with this name 1: Colorsound is an experimental/ instrumental Band.
In 1994, Matt Tow (founder of The Lovetones) recorded a solo album entitled You’re Only As Good As Your Sound under the moniker of Colorsound, which was picked up by Summershine Records in Australia. The following year it was released in the US on Sub Pop. He has since released a further 4 albums in this guise. These releases are typically instrumental and far more experimental than Matthew's other projects.