SKU: 41675430426

Ensoniq SD-1 90's Polyphonic Digital Additive Synthesiser & Sequencer - 100V

Sale price$449.55 Regular price$499.50
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Description

Ensoniq SD-1 90's Polyphonic Digital Additive Synthesiser & Sequencer - 100VEnsoniq SD 1 90's Polyphonic Digital Additive Synthesiser & Sequencer 100V The SD 1 was released in 1990. It is an interesting digital synthesiser as it uses additive synthesis and waveform modulation to create sound, a kind of wavetable synthesis. This places the SD 1 among unique synthesisers such as the PPG Wave and Waldorf Microwave series. The SD 1 can create all sorts of acoustic, electric, digital, and analog like sounds. Its piano sound has

Ensoniq SD-1 90's Polyphonic Digital Additive Synthesiser & Sequencer - 100V

The SD-1 was released in 1990. It is an interesting digital synthesiser as it uses additive synthesis and waveform modulation to create sound, a kind of wavetable synthesis. This places the SD-1 among unique synthesisers such as the PPG Wave and Waldorf Microwave series. 

The SD-1 can create all sorts of acoustic, electric, digital, and analog-like sounds. Its piano sound has over 1 MB of 16-bit waveforms to give it a full and rich realistic tone not found in other digital synthesisers of the time.

The SD-1 has 21 voices of polyphony and a single patch can contain up to 6 of the 168 waves in its ROM memory that can be combined and layered. Advanced and analog-like synth parameters including its dual multi-mode digital filters, three 11-stage envelopes, LFO, and 15 modulation sources allow you to further shape and morph your sounds. There's even a dual effects processor with reverb, chorus, flanging and delay.

The SD-1 has a professional quality on-board sequencer making it a complete all-in-one music production workstation. This is a 24-track sequencer with 25,000 note capacity and it holds up to 60 sequences and 20 songs. 

Condition:

  • This unit has been used.

  • This SD-1 has had a major service. All issues and faulty components were replaced. It has since been tested and we can confirm it is fully functional and sounding great!

  • Unfortunately the floppy disk drive is not working, however is not necessary to use the synthesiser or save or move sounds or sequences as it also has MIDI. This could be swapped out by a synth savvy person with a more modern USB or SD card emulator. 

  • The cosmetic condition of this unit is good. It shows some general wear from use and age like some text and paint finish which was worn off the front. The text is for the inputs and outputs on the back which is still clear on the back of the unit. It does not detract from use or functions of the machine. Please see photos for further details. 
    |
  • It looks like they keys were lacquered with a clear, shiny coat in the past. Please see all photos for further details.

  • This SD-1 has had a brand new memory battery installed. 

  • Please be aware this unit is 100V. This means it MUST be used with a step-down transformer, not a travel adaptor. If you are unsure about this please let us know. We have some great, compatible step-downs for sale here: https://www.ebay.com.au/itm/173909299338 They are designed in Australia for use in Australia and can be run 24/7.

  • If you purchase from outside Australia you may need a step-down transformer to use this unit. Please contact us if you need any help sourcing the correct product. 

  • This sale is for the unit only. No other parts, cables or accessories are included unless mentioned above. 
Specifications:

Polyphony - 21 voices 

Oscillators - 1 to 6 per voice. Wavetable has 168 waveforms (multi-sampled acoustic instruments, sustained waveforms, harmonic and inharmonic structures) 3.5 MB ROM.

LFO - 1 LFO

Filter - dual multi-mode digital filters

Envelopes - 3 11-stage envelopes

Sequencer - 25,000 note capacity (expandable to 75,000), 60 patterns, 20 songs

Effects - 24-bit Dual VLSI Multi-Effects: reverb, chorus, flanging, and delay

Keyboard - 61 keys (velocity and polyphonic aftertouch)

Memory - 180 Patches, 60 Performances

Control - MIDI (12-parts)

Date Produced - 1990

Postage:

If you are in a remote area you may incur extra fees. 

International import tax, duty, vat, custom fees or any other charges are not covered by us, nor included in the shipping fees. These are the responsibility of the buyer.

Return Policy:

Returns will only be accepted for manufacture defects / faulty items. Please contact us if you have any problems with your purchase and we will strive to work it out with you.

Please contact us with any enquiries, and check our other listings for more pro audio and accessories. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41675430426

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4.8 ★★★★★
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A
A. Nelson
Phoenix, US
★★★★★ 3
Likeable characters, but only 75% complete story
Format: Kindle
I really liked the characters introduced, but the author didn’t fully conceptualize everything. We know Lila works long hours, but despite being a college graduate we never learn anything about what she does, where she works, how much she gets paid, etc. For an omega who seemed to be able to support herself, that seemed an unusual oversight. We learn absolutely nothing about what she wants in life, either. Is she just surviving the post-college life struggle or working up to her dream job? Fiona the flamingo had more detail than some of the main characters, but she was 10/10 as good as Wendy for a side character. — spoilers ahead —- Separately, some of the plot details were contradictory, or just missing. On one page Lila and Larry were together for 18 months, on another it was 4 years. When did she even move in with him? What did she do while he was gaming? How long were she and Wendy friends for Lila to trust her like that but not know much about her? And why didn’t Lila’s alphas sue Larry to reduce Lila’s debt? Shopping seemed a weird choice pamper her without knowing more about Lila’s debt and plans to reduce it. And her alphas never even ask anything about her job, but she’s The One. Such a frustrating relationship plot hole. We never even learn anything about the alphas’ families or what they want in life either. I wish the author had written about 30 more pages fleshing out the details and showing how the alphas were just as in love with Lila’s personality as they were with her scent and body. Loved the concept, but I still feel like I read 3/4 of a book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
K
kat
Carnegie, US
★★★★★ 3
It's mid
Format: Kindle
There's a cute story there. The guys are sweet, but... I don't know. It's very vanilla. Not just the mediocre spicy scenes, but the whole story. It's just ok.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
K
keke
Battle Creek, US
★★★★★ 5
Short, cute, straight to the point
Format: Kindle
This is the type of fast pace stories I love to read. I felt nothing felt incomplete. Everything went together. Loved the men loved the best friend and the Fmc. Definitely would recommend this book.
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Reviewed in the United States on January 26, 2026
R
R. Jones
Phoenix, US
★★★★★ 4
Fun, Steamy, and Just Enough Depth
Format: Kindle
I liked this book — it was cute, short, and exactly what I expected from a quick Omegaverse read. While it doesn’t dive too deeply into character development, there was enough personality and backstory sprinkled in to keep the relationships believable and engaging, especially given the length. What I really appreciated was that the focus stayed on the main characters and their connection. The heat, the banter, and the romance were front and center without getting bogged down in unnecessary drama. It made for an easy, enjoyable read that flowed smoothly from start to finish. I’m looking forward to the next book in the series. There was a teaser blurb at the end, but it isn’t up on Amazon yet — hopefully it’ll be posted soon so I can add it to my wish list.
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Reviewed in the United States on September 14, 2025
N
Verified Purchase
N McKinney
Los Angeles, US
★★★★★ 3
Good But
Format: Kindle
A little disjointed at times, at least to me. This was about Lila (omega woman) and Harrison, Wesley and River (alpha males). The main characters were likeable, as was Lila's friend, Wendy. Lila finally wised up and left the alpha she had been with for a couple of years because he was an a-hole, who treated and used her horribly. She knew some, if not all, of the guys from college if I remember correctly. The guys had been looking for an omega to bond with for some time. When Lila saw Harrison again, the other two guys were out on a date with another omega but Harrison refused to go because he didn't like her. He saw Lila again and knew she was the omega they had been searching for. However, it wasn't easy for them to convince Lila of that because of the way her ex-alpha treated her. The sex was hot. There was one inconsistency. I could almost swear that when Lila first saw Harrison again, she told her best friend, Wendy, that Harrison was the lead for his pack. Then later on when she's spending time with River, she thinks he is the pack's lead. Maybe I read something incorrectly. All in all, a good story.
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Reviewed in the United States on March 13, 2026

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