Kanade Sound Design is a guitar and bass brand produced by Altero Custom Guitars, a workshop based in Otsu, Shiga Prefecture, Japan. The brand draws on Altero's experience in repair and custom instrument work to offer handmade electric guitars and basses made with domestically sourced tonewoods and hand-finished components.

The lineup centers on several original series. Guitars include the KTM, a Telecaster-style bridge and electronics mounted in a Jazzmaster-size offset body, along with the KTL, KTT, and Amico series. Basses are offered in the KPB and KPJ series, with additional limited-run models such as the KTM-AS ikkyu Edition and KTT Black Korina. Instruments are typically sold through Japanese retailers including Ishibashi, Kurosawa, and various regional guitar shops, with secondary-market availability through Reverb.

The brand's stated approach emphasizes careful material selection and hand finishing as an alternative to mass-produced instruments, with each guitar serialized and built in small numbers at the Shiga workshop.

Kanade Sound Design has 9 products cataloged on Equipboard, including Solid Body Electric Guitars, Electric Basses, and Semi-Hollowbody Electric Guitars. Their gear is featured by 1 artist, with the strongest followings in Rock. Notable users include Tricot.