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Ensoniq VFX-SD

$190.00 Price Tier: Budget

4.0 (10)

1 Critic Review

2 Reviews

This product is Vintage or Discontinued

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2 community setups

5 wishlisted

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Page last updated Jun 14, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 14, 2026.

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Reviews

Price

4.0 (3)

$190.00 4 available Used

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Average Price: $190

Budget/Beginner

$500

$1501+

Price Tier

In the Synthesizers category, Ensoniq VFX-SD is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Standard

High-end

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Description

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The Ensoniq VFX Synth was initially released as a performance type synthesizer in 1989. It was soon followed by the release of the VFX-SD, which included some updated waveforms (drum waves), a 24-track sequencer and a floppy drive. Both models were equipped with the Ensoniq Signal Processing (ESP) chip for 24-bit effects. The VFX-SD also included two AUX outs, which allowed for a total of 4 outputs from the synth for more routing flexibility. The initial models were 21-voice polyphony, and in latter models of the VFX-SD (I/II) and the SD-1, the polyphony was 32.1

Product specs

Brand	Ensoniq
Model	VFX SD Music Production Synthesizer
Finish	Black
Year	1989
Made In	United States
Categories	Digital Synthesizers, Keyboard Synths
Analog / Digital	Digital
Key Size	Full Size
Keyboard Action	Semi-Weighted
MIDI I/O	MIDI Input, MIDI Output, MIDI Through
Number of Keys	61 Keys
Polyphony	21 Voices

FAQs

Is the Ensoniq VFX-SD suitable for live performances?: Yes, the Ensoniq VFX-SD is well-suited for live performances, thanks to its semi-weighted 61-key keyboard and robust MIDI capabilities, allowing for expressive play and integration with other gear.
What type of synthesis does the Ensoniq VFX-SD use?: The Ensoniq VFX-SD utilizes digital synthesis, offering a wide range of sounds with its 21-voice polyphony and multiple waveforms for creative sound design.
Does the Ensoniq VFX-SD support MIDI connectivity?: Yes, the Ensoniq VFX-SD features MIDI Input, Output, and Through, allowing seamless integration with other MIDI-compatible devices and software.
How many keys does the Ensoniq VFX-SD have, and what is their action type?: The Ensoniq VFX-SD has 61 full-size keys with semi-weighted action, providing a responsive and dynamic playing experience.
Can the Ensoniq VFX-SD be used for music production?: Absolutely, the Ensoniq VFX-SD is designed for music production, offering a variety of sounds and editing capabilities to create complex compositions.

Videos

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tritonrecordings

Synth Stuff Ep. 37 - Ensoniq VFX-SD

tritonrecordings

Ensoniq VFX SD demo by Synthdude

Synthdude

ENSONIQ VFX-SD DEMO // SOUND DESIGN

Warm Natural

Ensoniq VFX-SD - Demo - Polyphonic Aftertouch - Sounds Only

Earmonkey Music

Ensoniq VFX SD Synthesizer Workstation

Hank Coffey

Ensoniq VFX SD demo

Panu M Savolainen

Ensoniq VFX SD (sound demonstration)

Keyboards - review - repair

Ensoniq VFX SD (sound demonstration) HiQ sound

Keyboards - review - repair

Reviews

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PROS

Can layer 6 patches in one preset for complex sounds
Built-in sequencer and internal effects enhance music production
Floppy disk feature for saving patches adds convenience
Poly aftertouch offers expressive playability
User interface is highly praised for ease of use
Great for crafting digital pads with a unique character

CONS

Lacks the immense routing capabilities of its predecessors
Missing analog filters; filters are non-resonant
Programming can be complex and unintuitive
No basic preset available, making starting from scratch difficult

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Ensoniq VFX-SD.

User experience

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The keyboard feel is highly regarded, making it a preferred choice as a main controller for many users due to its playability.
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Use cases and applications

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The "ORGANIZER" patch can be used to test voice stealing; it utilizes 2 voices per note, useful for determining hardware capabilities.
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The synth is often used for live recordings straight to cassette, utilizing looping envelopes without the sequencer for creating evolving soundscapes.
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Different attack lengths for voices and varying LFO rates create movement and complexity, making it unique compared to other polysynths.
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The transwave engine can create rich, warm sounds by using envelopes to modulate wave positions, detuning voices, and adding pitch modulation.
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Setup and maintenance

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Owners experience battery failures over time, highlighting the need for regular internal battery maintenance to preserve functionality.
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Some users experience issues with dry and hard aftertouch bushings, which need replacement to fully utilize the polyphonic aftertouch feature.
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Features and functionality

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The SD-1’s 1MB "classic piano" patch is a notable sound feature, distinct from the VFX’s default patches.
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The VFX-SD boot screen displaying "Ensoniq SD-1" indicates the presence of the SD-1 motherboard upgrade, leading to potential 32-voice polyphony.
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The VFX-SD's All-Waves mode allows setting a starting wave, determining the length of waveforms to cycle through, and choosing forward or reverse playback.
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The VFX-SD's sequencer is highly praised for its complexity, but a noted limitation is the inability to edit sounds while the sequencer is running.
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Polyphonic aftertouch on the VFX-SD enhances expressiveness, especially when paired with compatible MIDI gear like DSI/Sequential synths.
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Its effects unit, particularly the reverb and chorus, is praised for high quality, adding warmth and depth to the digital sound.
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Comparisons

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The late VFX-SD models with SD-1 internals allow you to run either the VFX or SD-1 operating system, impacting voice count (21 voices on VFX OS, 32 on SD-1 OS).
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Build quality

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Some users report aftertouch inconsistency, such as a specific key going directly to maximum pressure, affecting playability.
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Mods and upgrades

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A specific modification includes building a knob pedal for the Pedal/CV input, enhancing real-time control during performances.
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Owners have modified the patch select buttons by soldering them to a jack, allowing for a custom foot switch setup to switch patches hands-free.
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Software and compatibility

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Compatible with Oberheim and CS-80 emulation software synths, which can utilize its polyphonic aftertouch for expressive performance.
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Critic Reviews

Ensoniq VFX-SD (MT Dec 89)

muzines.co.uk

With the Ensoniq VFX-SD, Ensoniq expands on their acclaimed VFX synthesizer by turning it into a full-fledged workstation, complete with a 24-track sequencer and drum sounds. The VFX-SD retains the original's sound quality while adding practical features like a disk drive and additional audio outputs. The sequencer is a standout, offering extensive editing capabilities that rival software solutions. However, the addition of drum sounds comes at the cost of some samples, and the price is notably higher. Despite these trade-offs, the VFX-SD impresses with its innovative features and sound, making it a compelling option for musicians seeking an all-in-one solution.

positive

Full Review