I bought this because I admire Hikaru Yamamoto. I've used it a few times in the studio. There are no marks from double-sided tape. -- Features: This is a studio-quality compressor that excels at soft compression, which doesn't damage the nuances of the performance, and supports a wide range from soft to hard compression. ■ Compressor ■ Controls: compression, level, gain, treble, bass ■ Specifications ・ Connections: Input, Output, DC9V In ・ Included: Instruction manual ・ Dimensions: Width (W) 119 mm, Depth (D) 98 mm, Height (H) 62 mm ・ Weight: Approximately 355g