SKU: 41675430426

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

Sale price$449.55 Regular price$499.50
Save 10%

Pay in installments of $124.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 19 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Albert Manuel
New York, US
★★★★★ 5
Favorite turtleneck
I'm a big guy- 5'6", about 385, and I ordered the 4x. It fits perfectly. I love the soft material and fabric, and it's slimming without being uncomfortable. The quality of the material is top notch, and I haven't noticed any piling yet. It also looks great with all of my dress and casual wear, with either khakis or slacks. I wear this under my overcoat for outside, and with a base layer underneath it for inside. Definitely a great value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
L
Verified Purchase
Long time Amazonian
Boise, US
★★★★★ 3
Too thin, neck portion too hard to position to sport the classic turtleneck look.
Color: White, Size: Medium
Too thin. The neck won't hold a clean look, the neck portion bunches and double/triple folds and I can't get that cool turtleneck look with it that I had with my first white turtleneck that I loved so much I wore it out. This one doesn't measure up. If you just want this kind of shirt to wear in warm weather it's good for that because it's very thin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
A
Verified Purchase
anon
Massapequa, US
★★★★★ 5
Great base shirt
Color: Red, Size: Small
Super soft. Great slim fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
M
Verified Purchase
Mark Mitchell
Dallas, US
★★★★★ 5
Surprised by what a great sweater this turned out to be!
Size: Large, Color: Navy
I purchased three of these, various colors. I'm 6'1" /160 lbs. (long and lean) and a large is a great fit without being too loose or bulky. Holds its shape nicely for about 5-6 wearings before it starts to stretch out—particularly the turtleneck. I totally ignored the washing instructions and machine-washed (front-loader) all three sweaters with other items in cold water, regular HE liquid detergent, rapid-spin dry, then dried them in the dryer on delicate, lowest temperature setting for 30 minutes. They came out 98% dry and perfectly re-shaped with no shrinkage. The sweater is supple and soft, and warm and comfortable to about 60°F, after which it's a little warm (for me.) I cannot think of any reason to not purchase one: great fit, great look, great comfort, great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2023
D
Verified Purchase
DFS
Lake Worth, US
★★★★★ 5
Love this Sweater!
Size: Medium, Color: Black
Had my doubts, but this sweater is great! The color is great, follow the care instructions, and this sweater will not let you down. Feels great, fits great, no shrinkage, and looks excellent. Does it pill? Yes, expect it, but I also bought the BEAUTURAL Fabric Shaver and Lint Remover, Sweater Defuzzer with 2-Speeds. And it works beautifully not only on this sweater when needed, but also on my winter beanies and other clothes, which now look like new. My advice then. Buy the de-piller and buy this Sweater. I have purchased six, and I love these sweaters, especially now that I know how to best care for and keep them like new.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 4, 2025

recommand products