SKU: 88320890911

Sequential Circuits Pro-One

Sale price$1709.55 Regular price$1899.50
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Description

Sequential Circuits Pro-OneSequential Circuits Pro One for sale. This one's been sold but we have another available email us. Fully disassembled, cleaned inside and out, and meticulously serviced and reassembled. Working perfectly. This process was performed by an expert vintage synth tech and took nearly 12 hours. The end result is an instrument that's better than the rest and is priced accordingly. Ready to play, no excuses. Tech notes: Replaced power cable. Replaced molex

Sequential Circuits Pro-One for sale.

This one's been sold but we have another available - email us.

Fully disassembled, cleaned inside and out, and meticulously serviced and reassembled. Working perfectly. This process was performed by an expert vintage synth tech and took nearly 12 hours. The end result is an instrument that's better than the rest and is priced accordingly. Ready to play, no excuses.

Tech notes: 

Replaced power cable.
Replaced molex connector terminals (2)
Replaced capacitors T2.2/25 x4
Repaired broken standoffs, which are very common in Pro-Ones - see additional screws in front panel.
Removed bender unit and wheels, replaced terminals. 
Opened, cleaned and lubed, reassembled. 
Cleaned all switches and pots for crackle free performance.
Installed new 16p IC socket. 
Recalibrated VCA offset, D/A scale for CV, VCOs, adjusted bender, checked mod wheel, cleaned jacks.
Burn in test. Multiple systematic tests over extended period of time.
Unit works perfectly and sounds great!

This Pro-1 left the factory with the later membrane style keyboard Sequential switched over to later on in their production run. We had our tech service this keyboard and its now working perfectly, but the keys on this type of mechanism are a bit harder to play due to the mechanism design, so we removed that keyboard and replaced it with a newly designed 3rd party keyboard that feels much better. We're selling the membrane keyboard separately, but we can probably swap them out again if you'd like the original keyboard instead (if we still have it). We don't recommend it though as the new keyboard is much more pleasant to play.

We replaced the wooden sides with brand new replicas made by a third party.

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The Sequential Pro-1 is a favorite of many vintage synth enthusiasts and popular electronic musicians. It is one of our favorites too because it packs lots of features in a relatively small, lightweight synth. Thanks to its impressive modulation section, its capable of generating much more interesting sounds than most other monosynths. Some say its sound is identical to that of the Prophet-5 but, with the additional sequencer and arpeggiator, as well as the flexible modulation section, we think this synth is a bit more interesting. It's definitely got more options than most moog synths as well. Not only can it make some incredible sounds, its also a terrific effects processor since theres an audio in which routes signals through the filter. 

MODULATION SECTION
Fil Env
Osc B
LFO
OSCILLATOR A SECTION
Frequency
Octave
Saw switch
Pulse switch
Pulse width
Sync/off switch
OSCILLATOR B SECTION
Frequency
Octave
Saw switch
Triangle switch
Pulse switch
Pulse width
Lo freq/ normal switch
Kybd/off switch
LFO/CLOCK SECTION
Frequency
Saw switch
Triangle switch
Pulse switch
SEQUENCER SECTION
Seq 1/off/Seq 2 switch
Record/play switch
ARPEGGIATE SECTION
Up/off/ "up/down" switch
MIXER SECTION
Osc A
Osc B
Noise/ext
GLIDE SECTION


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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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: 88320890911

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Tim Arnette
Port Orchard, US
★★★★★ 5
Looks good feels good
Size: 13 Wide, Color: Black
I've had them 2 weeks and love them. Took a little breaking in but they feel great now.
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Reviewed in the United States on April 8, 2026
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Elizabeth Henderson
Chelsea, US
★★★★★ 4
Very narrow
Size: 10 Wide, Color: Cognac
Run narrow. For very narrow feet. Wide width fits like a regular width.
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Reviewed in the United States on February 9, 2026
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Mynx
Battle Creek, US
★★★★★ 5
Comfortable Shoes Right Out of the Box
Size: 9, Color: Black
I bought these shoes for my husband. He has a very hard time finding quality, comfortable shoes. These shoes are just as comfortable as his New Balance. He uses them as a dress shoe and wears them at least once a week. There was no break in period necessary. They were comfortable right out of the box! The only thing we didn't like was the white sole color. Once I knew he was going to keep them, I used a black sharpie marker to color the soles black. Instant amazing, comfortable dress shoes. They were well worth the cost. If you or your SO needs a comfortable pair of shoes, we highly recommend them.
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Reviewed in the United States on September 2, 2025
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B.J. G
Cuba, US
★★★★★ 3
Decent Shoes with Misleading Description (Not Leather)
Size: 12 Wide, Color: Black, Size: 12 Wide, Color: Black
I only look for leather when I’m purchasing dress shoes. Under the description “details” on this item it lists the shoe as leather upper and inner lining. A photo shows “genuine Napa leather lining”. If you keep reading (which I have now that I’ve received the shoes) it shows “faux leather” in the small print and that is not “leather”. I run a small leather business and this irks me because it’s clearly false advertising. The details also show the product is made in Brazil but when they arrived today, the shoe tag shows “Made in China” and “Man Made upper and lower”. I don’t hate the shoes. They look nice. What I know is they won’t hold up over time like leather, which is why the description should be accurate and not misleading.
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Reviewed in the United States on March 28, 2026
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Dianne
Natrona Heights, US
★★★★★ 5
Men’s oxfords
Size: 10.5, Color: Black
Good quality and perfect fit
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Reviewed in the United States on March 22, 2026

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