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.

 

Shipping Notes
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Exchange/Return Notes
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SKU: 91138124675

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4.2 ★★★★★
Based on 13 reviews
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Verified Purchase
jmb02129
Belleville, US
★★★★★ 5
Fantastic Boots!
Size: 8.5, Color: Redwood/Gum 10
Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!
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Reviewed in the United States on April 11, 2026
P
Verified Purchase
Paige
Carnegie, US
★★★★★ 5
Definitely worth the price
Size: 6.5, Color: Black/Black
Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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Reviewed in the United States on January 3, 2026
K
Verified Purchase
Kimberly
Houston, US
★★★★★ 5
Snagged a deal
Size: 7, Color: Redwood/Gum 10
I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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Reviewed in the United States on April 8, 2026
A
Verified Purchase
ashlynnk
Charlottesville, US
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
A
Verified Purchase
Abby B
Battle Creek, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026

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