TB-03 | Bass Line - Roland

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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.

• 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
• 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

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TB-03

• Features
• Specs
• Articles
• Accessories
• Downloads
• Support

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Video Library

• Roland Boutique Start - TB-03 Bass Line Tutorial

  This video is a short tutorial on the Roland Boutique TB-03 Bass Line.

• Roland Boutique — The Next Chapter

Authentic 303 Sound and Behavior via Roland’s ACB Technology

You know when you hear a TB-303—a hypnotic, tribal sound that works best in dark, crowded rooms with big sound systems. Using the same ACB (Analog Circuit Behavior) technology from the acclaimed AIRA series, the TB-03 accurately emulates the expressive, slippery sound of its older brother, and even adds a few surprises. Saw and square waveforms are available, along with all of the rotary control knobs that help shape the 303’s unique character, including tuning, cutoff, resonance, envelop mod, decay, and accent.

New Features Not Found in the Original

The TB-03 includes several enhancements over the original TB-303. Firstly, the four-digit LED display makes programming easier and more detailed, since you now have a visual representation of the value being edited. Then there are a variety of overdrive, delay, and reverb effects that dramatically change the mood and tone of the TB-03, going from smooth to spiky to squealing. Programming patterns is also easier thanks to newly added functions that include step write, shuffle, and fine tempo control. Finally, the inclusion of MIDI and USB ports mean that the TB-03 can send and receive control information and connect easily to computer-based DAWs.

Classic TB Sequencer with Enhanced Functions

If you’re familiar with the TB-303’s programming method, then you’ll feel right at home with the TB-03. The original Pitch and Time write modes are included, along with an all-new Step mode. Pattern programming is also enhanced by the LED display, which shows the current step in the sequence as well as showing fine tempo values (such as 125.5 BPM). The internal sequencer can be triggered externally via the trigger input, and you can even switch between write and play modes without stopping pattern playback, opening up new possibilities for live performance.

Connect with External gear

The TB-03 includes MIDI IN/OUT ports and USB, allowing control information to be exchanged with other instruments and devices. This turns the TB-03 into a versatile controller, especially as you can use the CV/Gate output to control external analog gear and modular synthesizers. This level of control works both ways, thanks to the trigger input that lets external gear drive the TB-03’s internal sequencer. Once connected to a PC or Mac, both audio and MIDI data can be sent through the USB port.

Battery or USB Bus Power

Some of the best music is made away from the studio, so the Roland Boutique series runs on 4 x AA batteries, ready for when inspiration strikes. Alternatively, the TB-03 can run on USB bus power.

USB Audio Interface for Direct Recording to Your DAW

Via its USB port, the TB-03 functions as a high-quality audio interface, providing a simple and reliable way of recording directly to your DAW application. You can keep your favorite settings and sequencer patterns safe too via the USB data backup function.

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Specifications User Memory Patterns: 96 (4 groups (I, II, III, IV) x 3 sections (A, B, C) x 8 patterns) Tracks: 7 Waveform (SAW, SQUARE) Controllers 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 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. Accessories Owner's Manual DK-01 Owner's Manual Leaflet "USING THE UNIT SAFELY" 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 940 g 2 lbs 2 oz

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Video Library

• Roland Boutique Start - TB-03 Bass Line Tutorial

  This video is a short tutorial on the Roland Boutique TB-03 Bass Line.

• Roland Boutique — The Next Chapter

A Few Minutes with Mareux

The enigmatic artist reveals how he creates his noir masterpieces and how the element of chance contributed to his runaway viral success.Read more…

A Few Minutes with Hannah Holland

Following the release of the soundtrack to Bruce LaBruce's film The Visitor, Hannah Holland examines the path from club kid to DJ to music producer.Read more…

Scene Report: Reykjavik’s Live Electronic Performers

A group of eclectic Icelandic artists offer unique perspectives on electronic music performance, their home country, and more.Read more…

Sequencing Secrets: Advanced Trigger Tricks

Dig deep into what's possible with triggers inputs and learn to create evolving sequences that become more than the sum of their parts.Read more…

TB-03 Quick StartStep-By-Step Instructions

These Quick Start Videos contain step-by-step instructions that will quickly introduce you to the TB-03’s top features.Read more…

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Downloads

• Updates & Drivers

Updates & Drivers

• TB-03 System Program ( Ver.1.07 )

• TB-03 Driver Ver.1.0.1 for Windows 10/11

• TB-03 Driver Ver.1.0.0 for Windows

• TB-03 Driver Ver.1.0.8 for macOS Sonoma 14.x / Sequoia 15.x

• TB-03 Driver Ver.1.0.7 for macOS Monterey 12.x / Ventura 13.x

• TB-03 Driver Ver.1.0.6 for macOS 11

  Compatible with Apple Mac series (Intel-based). Compatible with Apple Silicon Mac (using the M1 chip).

• TB-03 Driver Ver.1.0.5 for macOS 10.15

• TB-03 Driver Ver.1.0.4 for macOS 10.13 / 10.14

• TB-03 Driver Ver.1.0.3 for macOS / OS X

Support

• Owner’s Manuals
• Support Documents

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

Owner’s Manuals

• TB-03 Owner's Manual

• TB-03 Owner's Manual (Español)

• TB-03 MIDI Implementation Chart

• Functionality Added to the TB-03 (Ver.1.04)

Support Documents

• TB-03 Video Manual

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