Roll over image to zoom in

View large image

Roland TB-03 Bass Line Synthesizer


Add Your Review

  • Dawsons Delivery Delivery: FREE
Finance Available from £11.17 per month
Stock Checker v
In stock and ready to dispatch!
  • Faithful recreation of the coveted TB-303 Bass Line Synth with updated features
  • All the sound, character and user interface of the original TB-303
  • Additional functions for pattern creation, four-digit LED display, overdrive and delay effects, MIDI and fine tempo control
  • Classic Pitch, Time and Step write modes
  • Sequences will play uninterrupted even while switching between write and play modes
  • Control your vintage analogue gear & modular synths via CV/Gate outputs
  • Battery (4xAA) or USB power
Finance Options
  • More Info
    • Purchase Price
    • Deposit to Pay
    • Monthly Payments of
    • Amount of Credit
    • Total Repayable
    • Duration of Agreement Mths
    • Rate of Interest (Fixed)
    •  APR Representative
    • + Finance Information

  • Flexible finance available on orders over £250
  • Easy application online
  • Spread your payments over 12, 24 or 36 months
retail finance
More Info
Delivery & Returns

Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight, Channel Islands and the Republic of Ireland. is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland*FREE on orders over £75 £4.45 on orders under £751-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands Republic of Ireland£12.95 – any order value up to 30kg Over 30kg - please call1-3 working days
OverseasPlease call for detailsPlease call

Full delivery information

Returns Policy



The famous TB-303 Bass Line Synth has been faithfully recreated and thrust into the modern age, giving the user those unique and highly sought after hypnotic liquid grooves, a familiar layout and control set up with several enhancements not seen on the original. The TB-03 gives you an easier and more accurate programming experience thanks to 4 digit LED display and adds overdrive and delay effects to give your sound an entirely new dimension – perfect for the live arena. When it comes to creating music in the studio, users will be happy to know that TB-03 can effortlessly send control information via MIDI or USB. This USB connectivity also means the TB-03 can function as a 24-bit/96 kHz audio interface – making it a truly useful piece of kit for the discerning musician.

The authentic 303 sound you need

Through Roland’s ACB (Analog Circuit Behaviour) technology, which appears in the acclaimed AIRA series, the TB-03 faithfully recreates the hypnotic, tribal sounds of its predecessor adding a variety of new features to bring it into the modern age. With this handy unit, you have the saw and square waveforms you need to sculpt your sound as well as all the recognisable rotary control knobs that gave the 303 its unique look. Tweak tuning, resonance, cutoff, envelop mod, accent and decay quickly and easily.

New features for the modern musician

Of course, the TB-03 emulates the awesome sounds of the 303 well, but it’s the new enhancements that really make this unit shine. The extremely handy four-digit LED display is perfect for when you’re creating music live as it gives you a visual representation of what’s going on, making programming easier. The new delay, overdrive and reverb effects offer an entirely new element to the unit and can change the mood to your liking. In addition, you can also program patterns with ease thanks to a variety of updated features, including the step write, shuffle and fine tempo control functions.

Familiar TB sequencer

Those whom have already come to love the TB-303’s programming methods and capabilities will appreciate the fact the TB-03 retains the likes of the original’s Pitch and Time write modes and adds an all-new Step mode for added versatility. The LED display also helps with pattern programming, showing the user the current step in the sequence along with fine tempo values, so you know where you are at all times. You can flick between write and play modes without the pattern playback being affected and internal sequencer can be triggered externally via the trigger input. If you love the sound of the TB-303, but want an updated version that not only provides new connectivity enhancements, greater control and a more user friendly experience in a small package – the Roland TB-03 is the only option!

Model TB-03 Bass Line Synthesizer
Dimensions (H x W x D) 52 x 308 x 130 mm
Weight 940g (including batteries, excluding Boutique Dock)
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
ENV MOD knob
DECAY knob
WAVE FORM switch
MODE selector
TEMPO button
VALUE knob
RUN/STOP button
Keyboard buttons (C, C#, D, D#, E, F, F#, G, G#, A, A#, B, C)
TIME MODE button
ACCENT button
SLIDE button
BACK button
TAP button
Effects OVERDRIVE (Overdrive/Distortion)
DELAY (Tape Echo/Digital Delay/Reverb)
Indicators 7 segments, 4 characters (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 Boutique Dock: DK-01 (Silver)
Owner's Manual
DK-01 Owner's Manual
Alkaline battery (AA, LR6) x 4
Customer Reviews

Write Your Own Review

Write Your Own Review

1 1 star
2 2 star
3 3 star
4 4 star
5 5 star
Overall Rating