Roland TB-03 Bass Line Synthesizer

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On Sale For $349.99

Roland TB-03 Bass Line Synthesizer

The Classic TB-303 Sound in the Palm of Your Hand!

The battery-powered TB-03 is a direct descendant of the famous TB-303 Bass Line Synth. The layout and controls are unchanged, so it works just like the original. It sounds like it too, thanks to Roland’s advanced ACB technology that recreates the hypnotic liquid grooves of the magic silver box. But the new TB-03 goes even further, with several enhancements not found on the original model.

The four-digit LED display makes programming easier and more accurate, while overdrive and delay effects let you unleash a twisted, tribal wall of sound to send the crowd into a frenzy. Back in the studio, the TB-03 can send control information via MIDI or its USB port, the latter of which also functions as a audio interface.

User Memory:

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




  • Bvolume 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


  • Overdrive: (Overdrive/Distortion)
  • Delay: (Tape Echo/Digital Delay/Reverb)


  • 7 segments, 4 characters (LED)
  • Pitch Mode Led
  • Normal Mode Led
  • Time Mode Led


  • 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.


  • Owner's Manual
  • DK-01 Owner's Manual
  • Alkaline battery (AA, LR6) x 4

Size and Weight:

  • Width: 308 mm/12-1/8 inches
  • Depth: 130 mm/5-1/8 inches
  • Height: 52 mm/2-1/16 inches
  • Weight: 940g/2 lbs 2 oz

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