Roland PG-300

$485.91

4.5 (7)

3 Reviews

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2 community setups

1 wishlisted

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Page last updated Jun 19, 2026

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$485.91 3 available Used

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Description

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The Roland PG-300 is a quintessential addition for any synthesizer enthusiast looking to unlock the full potential of their sound modules. Designed to seamlessly integrate with Roland's line of synthesizers, this programmer provides hands-on control over a myriad of parameters, allowing for a more intuitive and creative workflow. Its dedicated sliders and knobs offer real-time manipulation of synthesis parameters, making it an indispensable tool for those who prefer a tactile approach to sound design.

With the PG-300, you can effortlessly tweak filter cutoff, resonance, LFO, and envelope settings, among others, to craft your unique soundscapes. This programmer is especially compatible with the Roland Alpha Juno series and the MKS-50, ensuring that your vintage gear feels right at home. The MIDI connectivity further extends its compatibility, allowing it to communicate seamlessly with other MIDI-enabled devices, thus expanding its versatility in any setup.

Whether you're a seasoned sound designer or a budding synth enthusiast, the Roland PG-300 offers both simplicity and depth, making it a valuable companion in the studio or on stage.

Key Features:

Dedicated sliders and knobs for real-time control
Compatible with Roland Alpha Juno series and MKS-50
Comprehensive MIDI connectivity for enhanced versatility
Intuitive interface for easy parameter adjustments
Ideal for both studio and live performances

Product specs

Brand	Roland
Model	PG-300 Synthesizer Programmer
Finish	Black
Year	1985 - 1989
Made In	Japan
Analog / Digital	Digital
MIDI I/O	MIDI Input, MIDI Output, MIDI Through

FAQs

What is the primary function of the Roland PG-300?: The Roland PG-300 is a synthesizer programmer designed to give users hands-on control over the parameters of compatible Roland synthesizers, such as the JX-3P, JX-8P, and MKS-50.
Is the Roland PG-300 compatible with modern MIDI setups?: Yes, the Roland PG-300 features MIDI Input, Output, and Through, making it compatible with most modern MIDI setups for controlling compatible Roland synthesizers.
How does the PG-300 enhance the programming of a synthesizer?: The PG-300 provides a tactile interface with sliders and buttons for direct access to synthesizer parameters, allowing for more intuitive and efficient sound design compared to using menu-based systems.
Can the Roland PG-300 be used with digital synthesizers?: While the PG-300 is a digital device itself, it is specifically designed for use with certain Roland analog and hybrid synthesizers from the 1980s, not modern digital synthesizers.
Does the PG-300 require a power supply to operate?: Yes, the Roland PG-300 requires an external power supply to function, typically a 9V DC adapter, which is standard for many vintage Roland devices.

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Roland PG-300.

Features and functionality

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The Roland PG-300 does not store MIDI channel settings after power-off, indicating it lacks non-volatile memory for channel retention.
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The PG-300 and Alpha Juno require careful MIDI port management; using the UMC204's MIDI in and out ports effectively can improve integration.
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Setup and maintenance

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Users note the absence of an internal battery, suggesting ongoing manual MIDI channel adjustment with each use.
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Owners advise testing MIDI devices individually to ensure proper configuration, starting with PG-300 to Juno connections before setting up DAW MIDI out.
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Software and compatibility

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The PG-300 is designed without memory retention, requiring manual MIDI channel resetting when used with synths like the Alpha Juno.
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Connecting the PG-300 and Juno before opening the DAW can prevent ASIO driver errors in Ableton, highlighting setup order importance.
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A faulty cable or Juno output may cause issues with the UMC204; ensuring cable integrity can resolve connection problems.
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4.5 out of 5

Based on 3 Reviews and 7 Ratings

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redvoid

204

over 7 years ago

absolute MUST if you have an alpha Juno 1 or 2 or MKS-50

If you have one of the above instruments and do not have this programmer, you are missing out. It has a MIDI out that acts like a merge of the in and the thru port, so you can place it between your DAW or sequencer and have both notes and programming at the same time which should be the default way it stays hooked up always.

method_one

269

over 11 years ago

Slider control for your Alpha Juno

If you have an Alpha Juno or MKS-50, this will give you real-time control of parameters, and make programming a dream. Very useful...if you can find one.