SKU: 81480990788

Oberheim OB-SX

Sale price$3599.99 Regular price$3999.99
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Description

Oberheim OB-SXOberheim OB SX For Sale Refurbished, Future proofed & Improved We paid our tech to fully overhaul and future proof this unit so it would not only work like new for its next owner but to also hopefully extend its life way beyond others you may find. The following work was done, sparing no expense, and the resulting instrument is better than all others of its kind and is of course priced higher than the others to reflect the work we did to ours that

Oberheim OB-SX For Sale Refurbished, Future-proofed & Improved

We paid our tech to fully overhaul and future-proof this unit so it would not only work like new for its next owner but to also hopefully extend its life way beyond others you may find. The following work was done, sparing no expense, and the resulting instrument is better than all others of its kind and is of course priced higher than the others to reflect the work we did to ours that other sellers didn't do to theirs. Ours should tune better too. You get what you pay for. 

Disassembled and cleaned inside and out.
Dip switches replaced.
Power switch replaced.
Cleaned all pots. 
Voice mother board.
Replaced molex terminals in power section. 
Resoldered connector pins.
Replaced autotune resistors for more precision. 
Replaced VCO range trims, scaling trims.
Replaced power supply electrolytic capacitors, trimpots.
Replaced 4051s x6.
Replaced gate IC59 (4099 x1).
Adjusted power supply voltage.
Voice cards: Replaced resistors for precision tuning, trimpots, electrolytic caps.
Recalibrated VCOs, VCFs.
Replaced pitch bend and mod wheel lever pots.
Cleaned jacks.
Removed and cleaned all keys, cleaned keyboard chassis.
Removed old bushings, adjusted metal guides, replaced with new bushings.
Cleaned J-wires.
Cleaned and lubed bus bars.
Extended burn in test and several systematic tests to ensure reliability. 
See video below! 

This represents a rare opportunity to buy an OB-SX that works perfectly, tunes better than others, and will hopefully keep working perfectly long into the future. We wouldn't sell it if we didn't have another just like it in our studio collection.

For years, we avoided buying this vintage analog polysynth because it was preset-only. However, someone recently created a MIDI retrofit (not included) that plugs into the communication port on the back of it that also allows for full editing of all parameters via MIDI CC data, bringing this synth up to the legendary level of the OBX, OBXa and OB8! To us, it sounds like a cross between an OBXa and OB8, plus it's got the benefit of being smaller and lighter. Even without this retrofit, it's a great synth with knobs for some very important parameters on the front panel so you can make adjustments to customize the preset sounds. 

Here's a video of this OBSX in action:

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: 81480990788

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N. Narvais
Los Angeles, US
★★★★★ 5
Items works just as described.
great soap. Lots of suds, no lingering perfumy smell, and seems to last longer than most.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 6, 2024
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Verified Purchase
Lawrence Mills II
Cuba, US
★★★★★ 4
2 smell good, 2 not so good and it's made in China
These are interesting soaps. The inverted loofah sponge for the soap is in interesting idea. The black and green ones smell the best. They are made in China however so I'm going with a USA made one next. Dapper Yankee.
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Reviewed in the United States on August 18, 2024
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Idris Ahmed
Carnegie, US
★★★★★ 5
Great Charcoal Soap – I Really Like It!
Scent: Ocean, Scent: Ocean
I’m honestly surprised how much I like this charcoal soap. The packaging was clean and professional, and all four bars came in perfect condition. Each bar is a good size, and it feels like it will last a long time. The scent is fresh and not overpowering, and the soap gives a nice deep-clean feeling without drying out my skin. I like that it has ingredients like peppermint, sea salt, and shea butter — it actually feels refreshing after a shower. The mesh bag they include is also really useful for getting more lather and keeping the soap from melting too fast. Overall, this is a solid charcoal soap set. Good quality, good fragrance, and worth the price. I’m happy with it and will definitely keep using it!
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Reviewed in the United States on February 3, 2026
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Mary
Omaha, US
★★★★★ 5
Good soap with a few details
Scent: Lemon, Scent: Lemon
I've been using this soap for several weeks now, and it's worked well for cleaning without drying out my skin. The foam is abundant and has a natural aroma, not strong at all. I like that it includes ingredients like turmeric and shea butter because my skin feels softer. The only thing I noticed is that from the pigment, it can leave a slight yellow mark on sponges or cloths if they are not rinsed thoroughly, and the size of the stick is smaller than it looks in the photo. Overall, it is a good natural choice for those looking for a different and gentle soap for daily use.
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Reviewed in the United States on August 18, 2025
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Blake
Louisville, US
★★★★★ 3
On the fence.
Scent: Citrus
Long lasting but don’t take anything off the skin it’s great for moisturizing but not for washing anything away like deodorant it can’t handle the task, smells great during wash but not long lasting after.
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Reviewed in the United States on January 24, 2026

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