• Realistic recreation of the iconic TB-303 Bass Line synth 
• Retains the sound, character, and user interface of the original TB-303
• Hands-on control over expressive parameters, including cutoff, resonance, envelope mod, decay, and accent
• New features not found on the original TB-303, including four-digit LED display, overdrive and delay effects, MIDI, fine tempo control, and additional functions for pattern creation
• Programmable via classic Pitch, Time, and Step write modes
• Continue playing a sequence even while switching between write and play modes
• CV/Gate outputs for controlling vintage analog gear and modular synthesizers
• Dedicated trigger input to drive the internal sequencer
• Highly portable for mobile music making
• High-quality construction with metal front panel
• Battery-operated (4 x AA) or USB powered
• 24 bit/96 kHz stereo IN/OUT USB audio interface
• Control information can be sent and received via MIDI and USB
• Built-in powered mini-speaker for instant enjoyment
• Compatible with optional K-25m Keyboard Unit

- User Memory
Patterns: 96 (4 groups (I, II, III, IV) x 3 sections (A, B, C) x 8 patterns)
Tracks: 7

- Waveform
2 (SAW, SQUARE)

- Controllers
VOLUME knob
TUNING knob
CUT OFF FREQ knob
RESONANCE knob
ENV MOD knob
DECAY knob
ACCENT knob
OVERDRIVE knob
DELAY TIME knob
DELAY FEEDBACK knob
WAVE FORM switch
TRACK PATT. GROUP selector
MODE selector
TEMPO button
VALUE knob
PATTERN CLEAR button
RUN/STOP button
PITCH MODE button
FUNCTION button
Keyboard buttons (C, C#, D, D#, E, F, F#, G, G#, A, A#, B, C)
TIME MODE button
TRANSPOSE UP/DOWN buttons
ACCENT button
SLIDE button
BACK button
TAP button

-Effects
OVERDRIVE (Overdrive/Distortion)
DELAY (Tape Echo/Digital Delay/Reverb)

- Indicators
7 segments, 4 characters (LED)
PITCH MODE LED
NORMAL MODE LED
TIME MODE LED

- Connectors
TRIGGER IN jack: Mono miniature phone type
CV OUTPUT jack: Mono miniature phone type
GATE OUTPUT jack: Mono miniature phone type
PHONES jack: Stereo miniature phone type
OUTPUT jack: Stereo miniature phone type
MIX IN jack: Stereo miniature phone type
MIDI (IN, OUT) connectors
USB port: Micro-B type (Audio, MIDI)

- Power Supply
Rechargeable Ni-MH battery (AA, HR6) x 4
Alkaline battery (AA, LR6) x 4
USB bus power

- Current Draw
500 mA (USB bus power)

- Expected battery life under continuous use
Rechargeable Ni-MH battery: Approx. 5 hours
* This can vary depending on the specifications of the batteries, capacity of the batteries, and the conditions of use.

- Dimensions
308 (W) x 130 (D) x 52 (H) mm
12-1/8 (W) x 5-1/8 (D) x 2-1/16 (H) inches

- Weight (including batteries, excluding Boutique Dock)
940 g
2 lbs 2 oz

- Accessories
Boutique Dock: DK-01 (Silver)
Owner's Manual
DK-01 Owner's Manual
Leaflet "USING THE UNIT SAFELY"
Alkaline battery (AA, LR6) x 4