DR-01S

Rhythm Partner

DR-01S

Organic Grooves for Unplugged Musicians

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.

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.

Specifications
Maximum Polyphony
24 voices
Tempo
Quarter note = 40--300
Time Signature
3/4, 4/4, 6/8
Tones
Shaker
Maracas
Bell
Whistle
Tambourine
Pandeiro
Claves
Cowbell
Triangle
Guiro
Bongo
Hand clap
Paila
Conga
Cajon
Drums
Metronome
Sound effects
Number of Favorite
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
Connectors
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.
Accessories
Owner's manual
Leaflet "USING THE UNIT SAFELY"
AC adaptor
Options (sold separately)
Footswitch: FS-5U
Dual Footswitch: FS-6, FS-7
Size and Weight
Width
210 mm
8-5/16 inches
Depth
143 mm
5-11/16 inches
Height
127 mm
5 inches
Weight
900 g
2 lbs
* 0 dBu = 0.775 Vrms

Downloads

Support

If you have questions about operating your BOSS product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.