BOSS upped the ante for digital loopers almost a decade ago with the original RC-20, and they’ve been raising the bar ever since. The latest editions to the lineup include the compact RC-3 and the dual-stereo RC-30. Both of these loopers offer serious recording time — up to three hours! A built-in rhythm guide lets you jam to real drum sounds, and a USB 2.0 port lets you import and export WAV files to and from your computer. The RC-30 also features an XLR input (great for vocal looping) and a built-in effects processor.