The Roland/Boss Dr. Sample SP-303 is a digital sampler from Roland based upon the Roland MS-1 Digital Sampler & Boss SP-202 Dr. Sample. The SP-303 was revamped and redesigned in 2005 and released as the SP-404.
The SP-303 itself provides up to three minutes and twelve seconds of sampling. The sample time can be expanded by the use of SmartMedia cards (8MB-64MB supported). The SP-303 features twenty-six internal effects that can be applied to samples and external sources as well. It also has a built-in sequencer.
While the SP-303 Dr. Sample may lack some of the features seen on other hip hop production samplers such as the Ensoniq ASR-10 and the Akai MPC it also has many unique features. It has been used live and in the studio by artists such as Animal Collective, Panda Bear, Four Tet, Madlib and J Dilla. The SP-303 has a pattern sequencer, where loops and patterns can be programmed.
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