Sequential Pro 3 - SEQ-3400

The Sequential Pro 3 is a powerful hybrid mono/paraphonic synthesizer that serves as the successor...

Best current price£1,895.94from eBay

All Offers

2 offers from £1,895.94

View price history by clicking the chart icon.

eBaySequential Pro 3 Multi-Filter Mono/Paraphonic Synthesiser
Free delivery in 1–3 days
£1,895.94
Visit shop

Product Information

Full details

The Sequential Pro 3 is designed for professional sound designers and electronic musicians seeking a hybrid instrument that fuses classic analog warmth with advanced wavetable digital versatility. It excels at complex, evolving textures and precise mono/paraphonic lead lines, though its deep modulation architecture and extensive menu system may present a steep learning curve for those unfamiliar with modern hybrid synthesis.

All features

Model Part NumberSEQ-3400
BrandSequential

Extended Product Information

FAQs

Is the Pro 3 a polyphonic synthesizer?

The Pro 3 is primarily a monophonic synthesizer that supports paraphonic playing, meaning it can play three notes simultaneously by sharing the available filters.

Can I load my own wavetables?

The Pro 3 includes a library of factory wavetables; however, users should check official Sequential firmware notes for updates regarding wavetable import functionality.

Does it have a built-in arpeggiator?

Yes, the Pro 3 includes a flexible, syncable arpeggiator that can be used alongside the 16-track sequencer.

How do I save my sound patches?

You can save patches directly to the user banks via the 'Write' button on the front panel.

Is the Pro 3 compatible with Eurorack?

Yes, it features dedicated CV inputs and outputs specifically designed to interface with Eurorack and other modular systems.

What is the difference between the three filters?

The Prophet-6 filter is smooth and warm, the transistor ladder provides a classic aggressive drive, and the OB-6 filter offers a cleaner, punchy state-variable response.

Troubleshooting

No sound output despite correct connections

Check that the master volume is up and verify the oscillator mix levels within the current patch.

Sequencer is not triggering

Ensure the global clock setting is set to 'Internal' or receiving a valid sync signal from your external gear.

Modulation matrix not responding

Check that the source and destination levels in the 32-slot matrix are set to a value other than zero.

Pros and Cons

Pros

  • Unmatched sonic flexibility via hybrid analog/wavetable engine
  • Versatile filter collection covering distinct vintage characters
  • Deep modulation capabilities perfect for complex sound design
  • Professional-grade integration with modular and CV gear
  • Robust and tactile build quality

Cons

  • Deep menu structures require time to master
  • Paraphonic limitations compared to full polyphonic synths
  • Premium price point reflecting its high-end build

Setup, Compatibility & Care

To integrate the Pro 3, ensure your MIDI routing is correctly configured in your DAW or external MIDI controller. For CV integration, use standard 3.5mm TS cables for connections to modular gear. Keep the unit away from direct heat sources and avoid spills, as the internal components are sensitive. Always update to the latest firmware provided by Sequential to ensure optimal performance and compatibility. Clean the chassis with a dry, soft microfiber cloth; avoid harsh solvents that could damage the finish or the screen.

Price History

DatePrice
Visit shop