Released in  2005, it is part of the SP family and successor to where Boss Corporation’s SP-505 sampler left off. The sampler was succeeded by the SP-555 in 2008, but was later given its own upgrade as the Roland SP-404SX Linear Wave Sampler in  2009.
Launched in 2005, it belongs to the SP family and serves as a successor to where Boss Corporation’s SP-505 sampler concluded. The sampler was replaced by the SP-555 in 2008, but later received its own upgrade as the Roland SP-404SX Linear Wave Sampler in 2009.