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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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4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 4
Better Than Most, But Still No Match for My Super Chewer
This is a decent chew. It’s made of a softer rubber material and has little to no odor, which I appreciate. It’s been about a week, and while it’s still technically in one piece, it’s starting to show some cracks and tiny puncture holes.
Now, keep in mind, my 100-lb pit mix Scooby Doo is a full on chew and destroy hound. If it can be chewed, he’ll find a way to shred it to bits. This toy held up longer than a lot of others but still didn’t make the “indestructible” cut in our house. He likes it, but it’s not his top pick, probably why it’s still alive.
Overall, it’s a good toy for the price. Probably not for extreme power chewers like Scoob, but it’ll hold up fine for most dogs and give you a little peace and quiet for a while. Do give it a try, Scooby Doo is a chewer in a class of his own, the fact that this has held up past a one 15 minute session is amazing in itself.
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Reviewed in the United States on November 5, 2025
★★★★★ 5
Absolutely thrilled with this
Great price
Great find
It is heavy but my pup is easily able to carry it around.
Perfect for smearing treats on and freezing - keeps him busy for ages - especially with the ridges -
thrilled with this
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Reviewed in the United States on December 5, 2025
★★★★★ 5
Multifunctional dog toy, fetch, chew, dental health
This toy feels like soft rubber, unlike the super hard plastic
Size wise, it would be a good toy to toss and play fetch with. My Aussiedoodle took to it right away. It has numerous nubs that are great for dental health. I use it, as well as other toys with nubs, to offer to my pups with a bit of
smeared on it, to help with their dental health.
🤗 Thank you so much for taking the time to read this review, have a FANTASTIC day!!😊
5★
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Reviewed in the United States on December 27, 2025
★★★★★ 2
Not for aggressive chewers.
Size: Large
Our dog is a 50lb Pit mix. This toy lasted about a week before he took a hole knuckle off. Happy he did not swallow it.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Perfect Chew Toy, Not Too Soft Or Hard
I've been looking for new chew toys for my 2.5 year old German Shepherd that are durable enough to withstand her chewing, yet aren't so tough or hard that she dislikes it and won't chew or play with it at all. I'm so glad I got this large bone chew toy for her because the rubber is just the right amount of toughness without being too hard. She also loves the bacon smell. Another good thing about this is that there are 80 round nubs that stick out of the bone and are flexible to help clean the teeth. You can even put dog toothpaste on them to really help clean their teeth. This is perfect for my dog because she doesn't like toothbrushes or finger wipes. She also loves to play catch with this toy and since it's made of rubber I can throw it & it just bounces around. This is her new favorite toy and she loves it so much that when my Lab tries to play with her or take it away, she does a little warning growl telling her to stay away. She has only ever done that before with her favorite stuffed animal. All of their other toys they usually share, but I'm going to have to buy another one for my Lab. There is a warniìng that says "Not for aggressive dogs." I definitely recommend this chew toy for medium and large dogs that are big chewers, but not agressive. This toy is a good value for the money and will entice your dog with the bacon scent, keep them occupied chewing or playing, & also help with their dental hygiene.
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Reviewed in the United States on October 18, 2025