Practice in style with the flagship of the Dr. Beat Metronome line.FeaturesPractice in style with the flagship of the Dr. Beat Metronome line. The new DB-90 is loaded with quality sounds and drum patterns to make your practice sessions less mundane and more musical. There’s a Rhythm Coach function with an onboard mic, a reference-tone function for tuning, an Instrument input, MIDI input, and other handy tools to make learning fun and effective. The most advanced metronome available Trigger input to access unique Rhythm Coach exercises MIDI in for syncing to external sequencer tempos PCM sounds with “drum machine†style patterns 50 memories Human-voice count Better Beats, Better PracticeThe Note Mixing function allows you to instantly create a variety of beats by adjusting the levels of five different note values. Front-panel sliders, buttons, and a large rotary dial provide instant, hands-on access to edit parameters. Select four different click sounds, including a human voice-counting sound that will help you know your place in the bar. The DB-90 is also equipped with realistic PCM drum patterns, for developing your accuracy and rhythmic feel effectively.Plug Into Rhythm CoachExpand your rhythmic horizons with Rhythm Coach. This innovative follow-along feature has four training modes to help build your accuracy, speed, and endurance. With the DB-90’s onboard microphone, you can use the Rhythm Coach functions with acoustic drums, or plug a Roland V-Pad into the Trigger input. Play along, and chart your progress.Many UsesDrummers can connect to the DB-90 via Roland V-Pads or the internal microphone. Guitarist and bassist can directly plug into the DB-90 without any other gear required, and monitor via connected headphones — practically any type of instrumentalist can benefit from the DB-90’s features. And for those who wish to sync to an external sequencer for more elaborate accompaniment, they can do so with the DB-90’s MIDI input. This stage-oriented feature is especially useful for drummers.Specs Metronome Tempo: 30-250 (Accuracy: ±0.1%)BEAT: (BEAT1) 1–9, (BEAT2) OFF/1–9PATTERN: 8-BEAT x 4, 16-BEAT x 3, SHUFFLE x 3, FUNK x 2, JAZZ x 2, BLUES, TECHNO, HOUSE, COUNTRY, REGGAE, CLAVE 3-2, CLAVE 2-3, SALSA, RUMBA, BOSSA NOVA, SAMBA, WALTZ, TANGO, MAMBO, CHACHACHA, MARCH (30 kinds) RHYTHM COACH Time Check, Quiet Count, Gradual Up/Down, Step Up/Down Reference Tone Reference Pitch: A4=438 Hz-445 Hz (1 Hz steps)Reference Tone Range: C2-B6 (5 octave, 12 semitone) Memory Metronome: 50Reference Tone: 10 Auto Power Off function Turns unit off after 60 min Indicators LCD Display, Tempo Indicator LED x 2 Connectors TRIG IN jackSTART/STOP jackMEMORY UP/DOWN jackMIDI IN connectorPHONES jack x 2 (Stereo 1/4" phone type, Stereo miniature phone type)INPUT jackAC ADAPTOR jack Power Supply DC-9V: Dry Battery (6LR61/9V, 6AM6/9V) or AC adaptor (PSA series) Current Draw 85 mA (max.) Accessories Dry BatterySoft caseOwner’s Manual Size and Weight ( incl. battery ) Width 122 mm 4-13/16 inches Depth 164 mm 6-1/2 inches Height 38 mm 1-1/2 inches Weight 0.5 kg 1 lbs. *The specifications are subject to change without notice. AssetsSupportBOSS forges into 2008 with an awe-inspiring lineup of effects, digital studios, and accessories." >BOSS Product Catalog 2008 DB-90 Q&A DB-90 Manual (PDF) V-Drums Catalog 2011 Vol. 1 BOSS Product Catalog 2011