Photo of DinSync RE-303 and more gear in a synths

Photo of DinSync RE-303 and more gear in a studio

DinSync RE-303

4.5 (6)

3 Reviews

Find out who is using DinSync RE-303

8 community setups

0 wishlisted

15 saved

Page last updated Jun 04, 2026

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Description

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Unleash your creativity with the DinSync RE-303, a meticulously crafted analog synthesizer that pays homage to the iconic Roland TB-303. This synthesizer is a passion project for those who adore the classic acid house sound and want to recreate the legendary bass lines that defined a generation. The RE-303 is not merely a replica; it's built with precision to mirror the original circuitry, offering a genuine analog experience that digital emulations simply can't match.

At the heart of the RE-303 is its authentic analog signal path, ensuring that every note you play resonates with the warmth and character of the original 303. Its interface is as intuitive as it is iconic, with classic knobs and switches that allow for real-time manipulation of your sound. Whether you're a seasoned producer or a budding enthusiast, the RE-303's simplicity and power make it an essential tool in any setup.

Crafted by DinSync, this synthesizer not only delivers the sought-after acid sound but also comes with a robust build quality, ensuring it can withstand the demands of both studio and live performances. The RE-303 is a testament to the enduring appeal of analog synthesis, offering musicians a tactile and engaging way to explore sound.

Key Features:

Authentic analog circuitry for genuine sound reproduction
Classic interface with knobs and switches for intuitive control
Faithful recreation of the iconic TB-303 bass synthesizer
Robust build quality suitable for studio and live environments
Designed for musicians looking to capture the classic acid house sound

Videos

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Vault Wax

Acid Pattern Writing Fundamentals with the RE-303, a Din Sync replica of the Roland TB-303, by Beyun

Vault Wax

RE-303 Demo

KlangGenerator

Din Sync RE-303 Sound Demo (no talking)

Bonedo Synthesizers

Din Sync RE-303

DeathByDinSync

TB 303 VS RE 303 ( CAN YOU FEEL THE DIFFERENCE ? )

Rick Loza

Avalon Bassline vs RE-303

brawfx

DinSync RE-303 into T-Rex Replicator

phono1337

Din Sync RE 303 superbooth19 by Rock oN

RockoNCompany

Reviews

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PROS

Best sounding 303 machine next to original TB-303
Customizable with full metal case options
Contains "945p" transistors for distinct sound calibration
DIY project allows for personal assembly and customization
Compatible with both aluminium and plastic cases
Faithful to TB303 parts for an authentic experience
Supports MIDI in/out and DIN in/out for connectivity
Facilitates repair of original TB303 with compatible parts
Can interchange CPUs between TB303 and RE-303 for flexibility

CONS

Requires DIY assembly, not suitable for all users
Being a replica, may not fully capture the original's essence for purists

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about DinSync RE-303.

Features and functionality

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The RE-303 with Pixie CPU initially lacked complete MIDI control but now supports it in beta, allowing Remote Mode with firmware version 1.4.3.
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The Sonic Potions CPU allows pattern storage on the CPU itself, eliminating the need for continuous battery presence.
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Sonic Potions CPU adds functionality like real-time programming, LED chases, and a randomize feature, previously done through battery removal.
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Owners report the RE-303's Sonic Potions CPU as a significant upgrade, with MIDI inclusion and enhanced pattern management over the original TB-303 setup.
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Software and compatibility

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Users have reported MIDI implementation bugs in the RE-303's beta stage, anticipated to improve with future firmware updates.
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Comparisons

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A user who owned both the RE-303 and TB-303 noted the RE-303's performance as comparable to the original TB-303.
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The RE-303's Sonic Potions CPU offers extended functions compared to the Social Entropy QuickSilver 303, which is no longer in production.
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User experience

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A former owner sold their RE-303, citing redundancy due to already owning a TB-303, highlighting satisfaction with the RE-303's authenticity.
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Persistence and a willingness to learn are crucial for beginners attempting this project, with community resources like forums and groups recommended for support.
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Build quality

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The build requires precision with very tight soldering, challenging for beginners and prone to issues due to complex assembly and poor documentation.
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Value and pricing

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Beyond the kit, expect to invest several hundred dollars on rare parts, knobs, cases, a CPU, BA662 or clone, and essential electronics tools.
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Setup and maintenance

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Essential tools include a high-quality soldering iron, desoldering tool/braid, multimeter, and ideally an oscilloscope for successful assembly and troubleshooting.
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Use cases and applications

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The RE-303 project is recommended as a post-study endeavor due to its complexity and the financial investment required.
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Mods and upgrades

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Adding CV inputs for pitch, gate, filter cutoff, and more can significantly enhance the RE-303's versatility and performance.
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4.5 out of 5

Based on 3 Reviews and 6 Ratings

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accentbuster

111

over 6 years ago

Best TB-303 clone is actually a replica ...

This one is in my ears the best sounding 303 machine that is not the original TB-303. Mine was built by Andreas Kump aka "Kumptronics" in Austria and has a special full metal case with blue coverplate. It has the "945p" transistors inside and is calibrated "rough".

arthurelectric

641

almost 9 years ago

I have the version with a TT303 case, so I can use it with batteries instead the ALU case.

The DinSync is a DIY project to build your own TB303. There aluminium cases and plastic case like the TT303 (MK1) case Please note this is a replica not a clone. Al parts are the same as TB303. The RE-303 (CPU) supports MIDI in- en MIDI out and have also the DIN in/out. When your own TB303 is broken you can repair it with DInSync parts. Even you can use the TB303 CPU when you have one or when your TB303 CPU is broken you can use the RE-303 CPU including MIDI.