Logjam is a UK-based manufacturer known for its innovative foot-stomp percussion pedals. These pedals are designed to produce rhythmic, bass drum-like sounds, ideal for acoustic and folk musicians who need a portable and unique way to enhance their live performances. The Logarhythm and its successor, the Prolog, offer different sensing areas that capture foot taps to create a range of tonal qualities. The Prolog, in particular, features a more compact design, with a slightly higher voicing and a focus on more specific sounds. These stomp boxes are made with solid wood and are equipped with a non-slip gauze underside to prevent slipping during use.

Logjam pedals are typically used in acoustic performances where traditional drums are impractical, but they can also work for a variety of musical genres that benefit from percussive, foot-operated rhythm sounds. Their products, such as the Logarhythm Mk4 and Prolog, have become popular among musicians for their versatility and ease of use. These stomp boxes are particularly praised for their ability to create a strong low-end tone, though some users note that they should be handled carefully in larger PA settings to avoid excessive bass.