BOSS DR-01S Rhythm Partner Drum Machine - Long & McQuade Music Educator Site
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BOSS DR-01S Rhythm Partner Drum Machine

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The Boss Rhythm Partner is 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 favorite rhythm combinations for quick recall

  • Control various functions and trigger sounds hands-free with optional footswitches

  • 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


Maximum Polyphony: 24 voices
Tempo: Quarter note = 40--300
Time Signature: 3/4, 4/4, 6/8
• Shaker
• Maracas
• Bell
• Whistle
• Tambourine
• Pandeiro
• Claves
• Cowbell
• Triangle
• Guiro
• Bongo
• Hand clap
• Paila
• Conga
• Cajon
• Drums
• Metronome
• Sound effects
Number of Favourite: 50
Rated Power Output: 7 W
Speaker: 10 cm (4 inches)
Display: 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: Approx. 10 hours
Accessories: Owner's manual, Leaflet "USING THE UNIT SAFELY", AC adaptor
Dimensions (W x D x H): 8.3 x 5.6 x 5.0" / 21.0 x 14.3 x 12.7 cm
Weight: 900 g / 2 lbs

Awesome Drum Machine!2 of 2 customers found this review helpful

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Product ExperienceI own it
Closest StoreCharlottetown, Prince Edward Island
Not your standard Drum Machine, but unique all the same! Sounds very close to the real thing, the only thing that would make it better would be the capability of adding fills by foot-switch. I'd still recommend this fine piece of gear though! (Did I mention that it's "fun" to use?)
Posted by Fenson on Jan 29, 2020
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