RD-H30+ for Windows

Name: RD-H30+
Rating: 4.4 (5 reviews)
Author: d-lusion interactive media

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Used RD-H30+ for Windows?

Editors’ Review

Download.com staffFebruary 26, 2026

Rubberduck is a PC software synthesizer designed for creating acid and techno music. It emulates the classic Roland TB-303 with a variety of sound-shaping tools.

Top Recommended Alternative

EaseUS VoiceWave

Trial version

Pros
- Standalone software synthesizer
- 5 standard oscillators
- Dual oscillator model with morphing
- Real-time resonant filters
- 256-note step sequencer
Cons
- Emulation of a single classic synthesizer
- Limited oscillator types beyond standard
- No mention of built-in effects

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Full Specifications

GENERAL

Release: November 15, 2005

Latest update: February 26, 2026

Version: 2.12

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows NT
Windows 10
Windows XP
Windows 95
Windows 2000
Windows 98

Additional Requirements: Windows 95/98/NT/2000/XP

POPULARITY

Total Downloads: 18,396

Downloads Last Week: 1

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Last Updated

User Reviews

4.4/5

5 User Votes

wahoooo!
kenfusionJanuary 10, 2008
Pros
it works, and sounds great
Cons
love to have this as a plugin for Fruity loops.
Summary
For hardcore musicians, but can`t overshadow commercial soft.
Radio FelisMarch 17, 2007
Pros
100% free, no BS. Fast and stable. Complicated, but good results. A lot of freedom in creating your own instruments by combining two of eight simple waves. Standard set of effects plus modulation and two mixing decks. Suitable for a lot of electronic genres. Can be used for live sessions.
Cons
Very complicated interface. Weird note input system (keyboard only - not good if you don`t have a MIDI keyboard). No polyphony apart from mixing decks. No direct export to WAV (only real-time recording). Online help only. Can`t find any skins. Many easier-to-use, cheap commercial products out there.
Summary
Straightfoward, innovative and free!
DJ BakaApril 26, 2006
Pros
It's loaded with premade loops that are easy to mod to your likings, and programming your own music is very simple and requires little to learn. You can record your music and save it in .wav format, and you can even add two sound files to your mix (for me, drums and bass). How cool is that? This is going to come in handy for my next single!
Cons
When you choose to load a file, it should take you directly to the premade ones, so that you don't have to go digging around in program files. Also, the loops you add don't always loop correctly, but if you try again, most of the time they do. That's all.
Summary
Preatty good, build talent.
DarkTenchuMarch 19, 2006
Pros
Very cool instrment if u like techno. It is a fun way to pass time and to make ryhme.
Cons
It takes skill. which i dont have.
Summary
kicks ass, 303 forever!
makjaveliFebruary 5, 2006
Pros
+unique sound <p>+oldschool <p>+free
Cons
-none
Summary

Developer’s Description

By d-lusion interactive media

Create synthesized acid and techno music with features based on Roland TB-303.

Rubberduck is a virtual acid and techno software-synthesizer for your PC. Its whole concept is based on the legendary cult synthesizer Roland TB-303. Features include Standalone software synthesizer, 5 standard oscillators, dual oscillator model including morphing, real time resonant filters, great user interface and skin support, frequency and volume envelopes, and 256 notes step sequencer.

RD-H30+ for Windows

Editors’ Review

Top Recommended Alternative

EaseUS VoiceWave

Pros

Cons