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Description
Oberheim Matrix-12Oberheim Matrix 12 for sale. Meticulously overhauled by the most critical professionals around. Our tech did the following work to this unit to make it better than the rest promote longevity: Power supply capacitors replaced. Battery replaced. Patches reloaded. Cleaned all switch contacts. Cleaned unit inside and out. Installed new encoders to prevent the usual glitchiness one often experiences with original 40 year old encoders (changed ceramic caps
Oberheim Matrix-12 for sale. Meticulously overhauled by the most critical professionals around.
Our tech did the following work to this unit to make it better than the rest / promote longevity:
Power supply capacitors replaced.
Battery replaced.
Patches reloaded.
Cleaned all switch contacts.
Cleaned unit inside and out.
Installed new encoders to prevent the usual glitchiness one often experiences with original 40 year old encoders (changed ceramic caps in circuit for compatibility).
Cleaned key contacts and PCB.
Cleaned sensor.
Replaced pitch and mod lever potentiometers with new ones since the originals are often problematic these days.
Multiple systematic burn in tests to ensure stability.
OS ROM 1.1, voice 1.6.
Here are a couple videos of this unit in action:
Those who know the Oberheim Xpander know it's one of the most fabulous analog synths ever made. When it came out, it was one of the first synths that offered the flexibility of a modular synth in a more up to date MIDI capable package. What made it so special was that most of the parameters could be modulated by a number of sources. The Matrix-12 is like having 2 Oberheim Xpanders with a keyboard. So, naturally, the Matrix-12 is going to kick twice as much a$$. :) It's multitimbral and 12 voice polyphonic, twice that of the Xpander. It's got oscillator sync and frequency modulation which many synths from that time didn't have. We feel its filters are its greatest strength - there are many modes to choose from - different types of lowpass, highpass, bandpass, notch, etc... And lots of envelope generators and LFOs, tracking generators, ramp generators, etc.. Thanks to all its options, this is a great synth for the serious synthesist. Or, if you failed physics, use the preset sounds. This model sounds great without being overpowering (unless you want it to).
Famous users of the Xpander and Matrix-12 include: Michael Brecker (RIP) (We own his Xpander and Matrix-12), Vince Clarke of Erasure (Vince actually sold us one of his 2 Xpanders), Trent Reznor of Nine Inch Nails, Herbie Hancock, Steve Roach, Larry Fast, Nitzer Ebb, Scritti Politti, Van Halen and many, many other serious synth musicians. This is one of our favorite synths and is highly recommended.
Shipping Notes
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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.
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4.3 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Very Modern Handsome Suit
Color: Grey, Size: 7 Years, Color: Grey, Size: 7 Years
This is an incredibly sharp looking suit for the little guy. Great price and features, too. I made a mistake in sizing up instead of down and first one was too sloppy on him and would need alterations. He is thin and very thin in the waist. There is a lot of adjustment with buttons in waistband and coat hides the bunching. This shirt and coat will easily take a fuller body than slim I believe. He loves posing in it and feels very classy. Best purchase for a formal suit that will last longer than most kids clothes size wise. Felt bad about returning but careful folding and packing got it good as new.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Quality
Color: Black, Size: 7 Years, Color: Black, Size: 7 Years
Excellent quality, My son looks incredible
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Reviewed in the United States on June 5, 2026
★★★★★ 4
Sharp Looking Kids Suit With One Missing Piece
Color: Navy, Size: 7 Years, Color: Navy, Size: 7 Years
I ordered this suit for my 6yo son in a size 7 so he would have a little room to grow and get more wear out of it, and sizing is perfect. He did not need it for any specific occasion, he just wanted a suit because apparently kindergarteners sometimes wake up and decide they are businessmen now.
Let me start with the positives because there are a lot of them. This is a very well made suit. The jacket, pants, and dress shirt are all surprisingly nice quality. The fabric does not feel cheap or flimsy at all. The jacket has good structure, the buttons are well attached, the seams are clean, and all the little details like the collar and pockets look great. It honestly looks like a proper little formal suit.
The pants are nicely made as well and pair perfectly with the jacket. The white dress shirt underneath is also good quality and completes the whole look. Overall, it is a really sharp outfit and would absolutely work for special occasions like weddings, recitals, formal events, church, or family photos.
Now for the reason I am deducting one star. The listing specifically shows and mentions that this set includes a bow tie. That was actually the main reason I chose this particular suit over others. Some options only had a standard tie or no tie at all, but my son specifically wanted a bow tie.
Unfortunately, the bow tie was not included with mine.
That was definitely disappointing because it was one of the main selling points for me when choosing this set. Now I have to go find a separate bow tie that matches, which I was hoping to avoid.
That said, I do want to be clear that this issue does not take away from the actual quality of the suit itself. The suit is genuinely very well made and looks fantastic on him. If your child needs a suit for a wedding, formal event, recital, or something similar, this would absolutely work.
My son mostly just wanted a suit because he thinks it is cool, so now he has one and can show up to school looking like the smallest CEO in kindergarten.
Overall, this is a very nice quality suit set. I just wish the bow tie that was advertised had actually been included.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Good for the price
Color: Black, Size: 10 Years
Great suit for the price and it includes the shirt which It was a great surprise
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Reviewed in the United States on May 27, 2026
★★★★★ 5
One size smaller is perfect!
Color: Navy, Size: 10 Years
This suit fit perfect but I did order one size smaller than my grandson normally wears. It is very well made and he can't wait to wear it in the wedding.
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Reviewed in the United States on March 19, 2026
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