SKU: 91138124675

Oberheim Matrix-12

Sale price$7874.55 Regular price$8749.50
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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.

 

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Exchange/Return Notes
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SKU: 91138124675

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Dennis L
Alexandria, US
★★★★★ 5
Once you put them on, you will know you made the right decision
Size: 38, Color: Medium Tint Denim
Absolutely perfect in every way. Staring either the very reasonable price, the true to size fit, and quality. Hip pockets are deep, and can come in handy. Most don’t know that Wrangler actually started in 1904 as a company called Blue Bell, and later renamed Wrangler. Well established and a long history of top quality clothing. Although you may find another company selling for a bit less, that’s what you’ll get……Less !!?
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Reviewed in the United States on May 2, 2026
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Erik
Houston, US
★★★★★ 5
Good shorts but they run big
Size: 38, Color: Dusty Olive
I've been losing weight and picked these up in my new size (38). It turns out these are cut for a generous American midsection, and have an elastic fit in the waist, so you can (and probably should!) safely go down a size. I got mine in 34 instead and they fit great.
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Reviewed in the United States on May 22, 2026
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MB
Fort Morgan, US
★★★★★ 5
Great fit, functional, most comfortable shorts!
Size: 30, Color: Anthracite Camo
These are my go-to shorts, I now have five pair in different camo colors! I suggest one waist size smaller than you normally wear, (I buy a 30 instead of a 32, because they stretch and would be too sloppy if I purchased my regular size). The large open slotted pocket on the left, behind the Velcro flap pocket, is perfect for a normal sized cell phone. Plenty of utility pockets for EDC. Since these stretch slightly to accommodate movement and sitting, they are extremely comfortable. Also, my wife says they are good looking on me, so that gets an extra star!
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Reviewed in the United States on March 24, 2026
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garym
Alexandria, US
★★★★★ 5
great shorts
Size: 38, Color: Gunmetal
excellent shorts. slightly loose around the waist, which i prefer. inseam is perfect just above the knee. light weight and roomy. wash well.
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Reviewed in the United States on May 24, 2026
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Sara
Bozeman, US
★★★★★ 5
The perfect throw-on athletic dress (with built-in shorts!)
Size: Small, Color: Navy Blue
I’ve been loving this athletic dress—it’s one of those pieces that’s both functional and cute, which is hard to find. The fabric is lightweight, breathable, and slightly stretchy, so it’s comfortable whether you’re running errands, going for a walk, or just chasing kids around all day. The built-in shorts are a huge plus. They stay in place well and make it feel more secure than a regular dress, especially on busy days. I also appreciate the pockets—they’re actually usable and don’t feel bulky. The fit is relaxed and flowy, which I personally like because it’s easy and flattering without clinging. The straps are adjustable, so you can customize the fit a bit depending on your height or preference. I’d say it runs true to size for a looser fit. If you want it more fitted, you could size down, but I like the casual, sporty look as is. Overall, this is a great everyday summer staple—super easy to style with sneakers or sandals, and perfect for travel or on-the-go days. I’ll definitely be getting more colors!
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Reviewed in the United States on April 24, 2026

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