ARP Omni Polyphonic Analog Synthesizer (Model 2483)- Serviced SN 24832768

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Additional SYNTH CITY Listings

"ARP Omni (Model 2483) fully serviced and ready for use. Missing colored slider caps -- though all sliders are functioning as expected. Nails that Joy Division synth sound!"

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Elka Synthex SN 1422

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1971 Contessa Branded Keio (Korg) Mini Pops 7 Analogue Drum Machine

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This is the first post to feature Contessa.

"1971 Contessa Branded Keio (Korg) Mini Pops 7. I have owned several of these and this one is in excellent condition (a few minor marks) and it sounds amazing. The signal is beautifully clean.

This is the UK voltage version - 220v.

It has just been fully serviced and comes with a period footswitch and a bespoke case, which has kept it in good condition all these years. I have replaced the rubber feet, as after a few decades they simply perish.

This analogue drum machine was used by Jean Michelle Jarre and Aphex Twin and has a rich and highly distinctive tone and range of patterns. It's highly versatile and can even be programmed live using the buttons (zero signal noise when you do this) and sliders (smooth as a baby's bottom).

Most of these machines survive due to the exceptional build quality but are usually scratched and bashed about. This one has very few marks on it and looks stunning. It even has the original panel for the mains cable compartment - most of which are missing. I don't think you'll find many better examples than this."

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Oberheim DMX 8-Voice Drum Machine 1981 w/ Factory MIDI

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Pic of the inside below.

"Oberheim DMX w/ rare factory MIDI. completely overhauled including new power supply, deep cleaning of all contacts and switches and sliders, fully functional and ready for studio use."

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1981 Sequential Circuits Prophet 5 Rev 2 SN 2422

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"1981 Sequential Circuits Prophet 5 Rev 2. Very Good condition but not a perfect model. One key needs a new J wire. All others keys work perfect and have great action. That is all except that the small logo in the second to last photo is slightly scratched."

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Dave Smith Instruments Tempest: 6-Voice Analog Drum Machine SN 02521

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Roland JP-8080 Ableton Trance Shifter

video upload by Akihiko Matsumoto

Ableton Trance Shifter https://akihiko-matsumoto.gumroad.com...
JP​-​8000 - 8080 Trance / Wave (Sample Pack) https://akihikomatsumoto.bandcamp.com...

Introducing UB-Xa Operating System 2 0

video upload by Behringer

Introducing UB-Xa Operating System 2.0.
Free download available at behringer.com
Download of the V2.0 will be available later today.

New firmware update 2.0 ! How the Behringer UB-Xa compares to the Oberheim OB-Xa

video upload by The Synth King

"Hi,
I´ve reconstructed a few sounds from my Oberheim OB-Xa on the Behringer UB-Xa. The UB-Xa has been limited to 8 voices in order to match with the OB-Xa. I´ve adapted the pan settings as well.

The UB-Xa uses the new firmware version 2.0. All sounds you hear in this video will be added as bonus files to my „Synth King Producer Pack“.
Enjoy the music!
Bernd"

Custom patches for Yamaha DX7 (DXtraterrestrial 1)

video upload by Benjamin Dehli

"Custom patches for the Yamaha DX7 and other DX7 compatible products.
DXtraterrestrial 1 is a collection of 32 patches containing warm and lush synth pads, crisp and bright bells and plucked sounds, digital and glitchy sounds and anything in between. These presets are designed to give you a wide range of tones for any music style. Whether you're into retro synth sounds, modern vibes or more experimental stuff.

The first part of the video is a sound example of each patch with a variable amount of echo and reverb. The seconds part of the video is the same sound examples without any effects added.

Instrument:
- Yamaha DX7

Effects:
- Fulltone Tube Tape Echo
- Chase Bliss Audio & Meris CXM 1978

Technical specification:
- Format: SysEx
- File type: .syx
- Patches: 32

Website: https://www.dehlimusikk.no/
Gumroad page: https://store.dehlimusikk.no/"

Keith McMillen Has Passed Away

Some sad news in via Keith McMillen Instruments

"It is with heavy hearts that we announce the passing of Keith McMillen.

Keith McMillen, a pioneering force in audio and music technology, passed away this week leaving behind a legacy of innovation and a profound impact on the music industry. Born July 10, 1957 in Bermuda, Keith dedicated his life to revolutionizing how live interactive music is played and experienced.

A passionate advocate for the intersection of technology and music, Keith’s academic foundation was laid at the University of Illinois, where he earned a BS in Acoustics under the mentorship of James Beauchamp. He further honed his skills in classical guitar and composition under the guidance of Herbert Brun, Scott Wyatt, and Sal Martirano. Over the years, Keith developed MAPPS, an integrated computer composition, notation, and performance system that became the bedrock of his group TrioMetrik.

Keith’s professional journey began in 1979 when he founded Zeta Music, a company that would become synonymous with the modern violin. His revolutionary electronic instrument designs set new standards in the music industry, creating a market that continues to influence musicians today.

In 1992, as Vice President at Gibson Guitars, Keith founded G-WIZ, an R&D lab where he developed ZIPI, a groundbreaking musical instrument control language that evolved into the Open Sound Control (OSC) protocol and lay the foundation for MPE and MIDI 2.0.

In 2005, Keith founded Keith McMillen Instruments, a company that quickly became known for its cutting-edge approach to musical technology using patented Smart Fabric sensors. Keith established the company to bring his innovative vision to life, and under his leadership KMI introduced groundbreaking products that combined Smart Fabric with musical artistry, including the K-Bow, QuNeo, QuNexus and K-Board Pro. These instruments, recognized for their versatility and advanced capabilities, reflected Keith’s dedication to pushing the boundaries of what was possible in music technology. His work through the company solidified his reputation as a pioneer in the field and left a lasting impact on the music industry.

In 2014, Keith founded BeBop Sensors with a mission to expand Smart Fabric applications into the fields of wearable sensors and haptics. This led to the development of several products and patents, including virtual reality gloves and insole sensors. This work inspired Keith to form Sensible Robotics, a new company where Keith focused his full attention on Making Robots Feel Better™ by using Smart Fabric to develop robotic skin.

Keith McMillen’s work exemplified a lifelong commitment to exploring how computer intelligence and user interface can enhance and expand musical performance. His passing is a great loss to the world of music and technology, but his innovations and achievements will continue to inspire and shape the future of both fields."

His instruments have been featured throughout numerous posts here on MATRIXSYNTH (271 posts to date including this one). You can find a handful of posts featuring Zeta here.