SKU: 81480990788

Oberheim OB-SX

Sale price$3599.99 Regular price$3999.99
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

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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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4.3 ★★★★★
Based on 13 reviews
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Verified Purchase
ROBERT LASHLEY
Waukegan, US
★★★★★ 5
Best Dressed in the building!
Size: XX-Large, Color: Black With Golden
Love this tux, got it for my daughters wedding. Good material and fits great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
T
Verified Purchase
Trina2Cute
Los Angeles, US
★★★★★ 1
Poor Quality
This suit was for my nephews school dance. The look is great however, its not of good quality. The material is cheap and looks as though it should be a costume. When my nephew tried it on it looked baggy. I returned the suit but have yet to receive a refund.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2024
C
Verified Purchase
Che
Pawtucket, US
★★★★★ 5
My son usually wears a Xl in men's clothing, suggests to go up 1 size to be safe
Size: XX-Large, Color: Navy With Blue, Size: XX-Large, Color: Navy With Blue
My son and I picked this suit out for his prom night coming up in May 2026. He trird it on and it fits, looks, and feels great on him!!! Color was spot on to what we wanted.. And how the picture looks is how it exactly came. He ordered a XXL, is 5'9" and weighs 235lbs
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Reviewed in the United States on February 4, 2026
R
Verified Purchase
rose
Louisville, US
★★★★★ 5
Awesome Suit!!
I purchased this suit for my boyfriend to wear to a party. I ordered an XL, he is 6'6" and 230lbs, initially the fit was fantastic and looks amazing but after wearing it and moving around in it for about 30 minutes, the pants started to slip down. The fabric has quite a bit of spandex in it and tends to stretch out after wearing for a little bit, it fits great right after it has been dried but then stretches out again. I ended up taking in the waist a little bit so the pants stay up, a large would likely have been a better fit. But he always looks amazing when he wears it and gets lots of compliments on the fun pattern. Definitely worth it!
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Reviewed in the United States on December 7, 2024
J
Verified Purchase
jayymerk
Port Orchard, US
★★★★★ 5
Great suit!
Size: X-Large, Color: Navy With Blue
I was pleasantly surprised by the quality of this Mage Male dress suit. The material feels very soft with a velvet-like texture that makes the entire outfit pop without being over the top. This suit is perfect for prom, weddings, or any event where you want to elevate your look a bit. Sizing was accurate for me, so make sure you follow the size chart closely. I recommend picking up an inexpensive tape measure here on Amazon to double-check your measurements — it makes a difference. For the price, this suit is absolutely worth it and I’d buy it again.
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Reviewed in the United States on December 3, 2025

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