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  • DR01S

    Boss DR-01S Rhythm Partner Organic Grooves for Unplugged Musicians

    5 In Stock

    Introducing the DR-01S Rhythm Partner, the world’s first virtual percussionist designed specifically for acoustic musicians. Unlike the rhythm machines used by electronic musicians and DJs, the DR-01S is packed with organic percussion sounds and simple, versatile grooves that tastefully complement the unplugged experience. It’s an ideal companion for acoustic guitar and vocals, and just as powerful with ukulele, violin, piano, and other types of acoustic instruments.

    The friendly interface on the DR-01S makes it easy to cater beats and variations to suit any style, while the onboard speaker provides high-quality sound that blends perfectly with acoustic instruments. And with battery-powered operation, you can take your rhythm partner everywhere you go. Whether playing solo or with friends, the inspiring DR-01S brings a new level of enjoyment to all your acoustic music sessions.


    • Great-sounding, easy-to-use rhythm box designed for acoustic musicians
    • Filled with simple, tasteful grooves to support and enhance unplugged music styles
    • Convenient all-in-one design with high-quality integrated sound system
    • User-friendly interface for selecting instrument types and grooves, adjusting volume and tempo, and more
    • Seven simultaneous instrument categories include everything from tambourines, shakers, and congas to full drum set, sound effects, standard metronome, and many other sounds
    • Dedicated patterns in each instrument category, with the ability to layer patterns from all categories together in real time
    • Save 50 favourite rhythm combinations for quick recall
    • Control various functions and trigger sounds hands-free with optional foot-switches
    • Line out for connecting to an acoustic guitar amp or larger sound system
    • Aux input enables use as a speaker for a smartphone or other audio player
    • Powered by six AA-size batteries or included AC adapter
    The Perfect Rhythm Partner for Unplugged Music

    One of the great joys of acoustic music is that it’s simple and uncomplicated—you just grab your instrument and start playing. The DR-01S flows seamlessly with that relaxed unplugged vibe, offering a friendly panel interface, all-in-one design, and tasteful, understated grooves that enhance any acoustic music style without getting in the way. Via dedicated buttons, you can call up all sorts of beats and variations, layer up to seven instruments together to create your own unique rhythms, and save up to 50 favorites for later recall. Volume, tempo, and time signature can be adjusted with just a few touches, and it’s easy to add a count-in before the rhythm starts. You can even fade out grooves to create polished endings for your songs.

    Expressive Percussion Instruments and Grooves

    The DR-01S takes full advantage of the acclaimed rhythm machine and sound development history of BOSS and its parent company Roland. A large variety of authentic acoustic percussion sounds are on board, including shakers, maracas, tambourines, congas, bongos, bells, cajon, and many more. There’s even a full drum kit with acoustic and electronic sounds, perfect for when you want to rock up your acoustic jams. Every instrument category includes lots of expressive grooves created by acoustic percussionists, giving you a wide range of organic backing for any unplugged style.

    Impressive Sound in a Compact Design

    With its integrated audio system, the DR-01S produces warm, full sound that blends right in with the natural tones of your acoustic instruments. BOSS’s advanced approach combines an innovative cabinet design, custom speaker, and a high-efficiency amplifier to deliver impressive sound in a highly portable package. And when you want to take your rhythm partner to the stage, just connect the line out into your acoustic amp or PA system.

    Hands-Free Control with Optional Footswitches

    While you can access all DR-01S functions from the front panel, it’s often handy to perform some operations while keeping both hands on your instrument. And by connecting one or two optional footswitches, you can. There are a variety of assignable functions to choose from, including start/stop, tempo up/down, tap tempo, pattern variation, and many more. It’s also possible to trigger nearly any DR-01S percussion sound by foot, great for manually tapping out beats as you play.

    Maximum Polyphony
    24 voices
    Quarter note = 40--300
    Time Signature
    3/4, 4/4, 6/8
    Hand clap
    Sound effects
    Number of Favorite
    Rated Power Output
    7 W
    10 cm (4 inches)
    7 segments, 3 characters (LED)
    DA Conversion
    24 bits
    Nominal Input Level
    AUX IN: -20 dBu
    Input Impedance
    AUX IN: 22 k ohms
    Nominal Output Level
    LINE OUT: -10 dBu
    Output Impedance
    LINE OUT: 1 k ohm
    Recommended Load Impedance
    LINE OUT: 10 k ohms or greater
    AUX IN jack: Stereo miniature phone type
    LINE OUT jack: Stereo miniature phone type
    CTL 1, 2 jack: 1/4-inch TRS phone type
    DC IN jack
    Power Supply
    Alkaline battery (AA, LR6) x 6 (sold separately)
    AC adaptor
    Current Draw
    330 mA
    Expected battery life under continuous use
    Alkaline: Approx. 10 hours
    *These figures will vary depending on the actual conditions of use.
    Owner's manual
    AC adaptor (PSB-1U + AC Cord Set)
    Options (sold separately)
    Footswitch: FS-5U
    Dual Footswitch: FS-6, FS-7
    AC adaptor (PSB-1U)

    *When purchasing an AC adaptor, be sure to specify the adaptor (from the list that follows) that is designed for the region in which it will be used, and the voltage supplied there.
    Size and Weight
    210 mm
    8-5/16 inches
    143 mm
    5-11/16 inches
    127 mm
    5 inches
    900 g
    2 lbs
    *0 dBu = 0.775 Vrms
    *The specifications are subject to change without notice.