Perfect for solo entertainers and home hobbyists alike, the BK-3 Backing Keyboard brings a new level of performance to entry-level auto-accompaniment instruments. Featuring a wide range of quality onboard sounds and rhythms, song playback via USB memory, built-in speakers, and more, this portable, self-contained keyboard puts the power of a full ensemble under your fingertips. From one-person shows to social gatherings to personal practice, the BK-3 brings endless hours enjoyment for playing all musical styles.
- Portable, self-contained keyboard with built-in sound system
- High-quality sounds, rhythms, and Music Assistants
- Comfortable, intuitive user interface
- Compatible with music rhythms from Roland’s BK, E, G, and VA series
- Play a variety of backing formats (SMF, MP3, WAV, and rhythms) and record performances with optional USB memory
- Roland Wireless Connect capability for cable-free communication with iPhone and iPad; free iOS apps available for music sharing, lyrics display, and more
- Available in black or white finish
Features
Wide Range of Sounds and Rhythms Onboard
The BK-3 is filled with sounds and rhythms covering an extensive range of music genres from around the world, including Eastern Europe, Latin America, and Asia. There are over 850 tones and 50 drum kits built in, providing a universe of voices for melody playing and accompaniment. Compatibility with GM2, GS, and XG Lite formats ensures high-quality playback with Standard MIDI Files.
Play Backing Tracks and Rhythms via USB Memory
The BK-3 can play a variety of external backing formats from optional USB memory, including WAV and MP3 audio, SMF, and Roland rhythms (BK, E, G, and VA series). Playback tempo and song key can easily be adjusted to suit your vocal range or performing needs, even with audio files. In addition, a Center Cancel function reduces the volume of vocals in commercial WAV/MP3 songs, ideal for karaoke singing and minus-one playing.
Easy Audio Recording
A dedicated front-panel button makes it simple to record audio directly to USB memory, allowing you to capture full-ensemble BK-3 performances any time you wish for self-evaluation and sharing with friends and family. Your recordings are saved as CD-quality WAV data, making it easy to transfer them to your computer for burning audio CDs.
Specifications
| Keyboard | Keyboard type: 61 keys (velocity sensitive) Keyboard Modes: Whole, Split, Dual |
| Display type | 132 x 64 dots, Graphic monochrome LCD (with backlit) |
| SOUND GENERATOR | |
| Max. Polyphony | 128 voices (GM2/GS/XGlite compatible) |
| Sounds | 851 tones; 53 Drum Sets |
| Multitimbral parts | 2 keyboard parts (UPP, LWR) + 16 song parts |
| Master Tuning | 415.3 to 466.2 Hz |
| Key Control (Transpose) | –6 to +5 in semitones (for audio/MIDI data) |
| Tempo change | 20 to 250 BPM for SMF and rhythms 75 to 125 % for mp3 and WAV files |
| EFFECTS | |
| Real Time parts (UPP, LWR) | Reverb and Chorus: depending on Rhythm/SMF Reverb Chorus Macro 1 Mfx (84 Mfx Editable Macro) (selectable via Tone Part Mfx) EQ |
| Rhythms/SMF section | Reverb: 8 types Chorus: 8 types 2 Mfx (84 Mfx Editable Macro) EQ |
| BACKING SECTION | |
| Rhythms | 250 in 5 “Rhythm” families (localized rhythms for specific areas are included in the WORLD 1 and WORLD 2 families) |
| Real-time player | Rhythms (STL), SMF (Format 0/1), KAR, mp3, WAV |
| Key Control | –6 to +5 in semitones (for rhythm, smf, mp3/wav) |
| Tempo Change | 20 to 250 BPM for SMF and rhythms |
| Time Stretch | 75 to 125 % for mp3 and WAV |
| One Touch memories | 4 suitable tones for each rhythm (Programmable) |
| Rhythm and SMF Makeup Tools | Instrument-oriented editing |
| Track Mute | for Rhythms/SMF |
| Center Cancel | for mp3/WAV |
| AUDIO RECORDING | |
| Media | USB Flash memory. |
| Save format | Audio files: WAV (44.1 kHz, 16-bit linear) |
| METRONOME | |
| Time Signature | 1 to 32/16, 1 to 32/8, 1 to 32/4, 1 to 32/2 |
| Mode | Always, Play |
| Count In | Off, 1 bar, 2 bar |
| PERFORMANCE MEMORIES | |
| Performance Lists | Unlimited number (storage on USB memory) Over 500 “Music Assistant” memories (internal memory) 5 “Factory Song” memories (internal memory) |
| Performance memories per List | Max. 999 |
| OTHER | |
| Search function | Quick location of Rhythms and Songs on the connected USB memory |
| Demo | Yes |
| Lyrics on Internal Display | SMF, mp3/WAV |
| Panel Controls | Volume Knob Balance (Backing/Keyboard) Buttons |
| Connectors | Phone/Output Jack: 1/4” phone type (TRS connector) USB COMPUTER port (Type B, reception and transmission of MIDI data) USB MEMORY port (Type A, data storage devices) MIDI IN, MIDI OUT (Visual Control function) Foot Pedal jack: PEDAL HOLD/SWITCH (assignable) |
| Speakers | 2 x 10 cm |
| Rated power output | 2 x 7.5 W |
| Power supply | AC adaptor |
| Power consumption | 1,200 mA |
| Auto Off function | Off, 10 min, 30 min, 240 min. |
| Accessories | Owner’s Manual AC adaptor Power cord (for connecting the AC adaptor) Music rest. |
| Options (sold separately) | USB flash memory (M-UF-series) Wireless USB Adaptor (WNA1100-RL) Pedal Switch: DP-series Footswitch: BOSS FS-5U |
| SIZE AND WEIGHT (EXCLUDEING AC ADAPTOR AND MUSIC REST) | |
| Width | 1044 mm 41-1/8 inches |
| Depth | 317 mm 12-1/2 inches |
| Height | 129 mm 5-1/8 inches |
| Weight | 7.5 kg 16 lbs. 9 oz. |
| SIZE AND WEIGHT (INCLUDING MUSIC REST) | |
| Width | 1044 mm 41-1/8 inches |
| Depth | 408 mm 16-1/8 inches |
| Height | 318 mm 12-9/16 inches |
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