MATRIXSYNTH

Hohner Symphonic 30 1964 tube organ (Zep)

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via this VEMIA listing

You can find a demo of one from posted back in 2010 here.

"Rare and very interesting: this model (the Hohner Symphonic 30) was used by John Paul Jones on an early Led Zeppelin tour, and so was also probably used in his home studio for years. See the inset photo for his rig (with a Mellotron and Rhodes for company). It was bought in VEMIA years ago for 770GBP in a completely unplayable state. needing major work. Since then, the current owner has had a lot of work done, and says it is just missing one part to be 100% - more details if we can find out. We're including one internal photo from its previous sale, before the restoration was done. Packing at VEMIA: 18GBP."

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Kurzweil K2500R with all three ROMs

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via this VEMIA listing "One of Kurzweil's finest products, still relevant and producing great sounds after nearly 30 years. This one is badged RS but doesn't have the sampler in/outs. It comes from Paddy Kingsland (Radiophonic Workshop) and is in good condition.

The best thing: it includes the optional Stereo Piano, Contemporary and Orchestral ROMs, with their reference guides - as well as the massive K2500 series Performance Guide. These are very difficult to get hold of, individually - and having all three installed is a huge bonus."

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The Synthesizer 4-book Set

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via this VEMIA listing

"The Synthesizer book set - Roland This is the original first edition book set of the “Synthesizer” by Roland. Includes 4 volumes, 1- Practical Synthesis for Electronic Music Vol.1 2- Practical Synthesis for Electronic Music Vol.2 3- Multichannel Recording for Electronic Music 4- A Foundation for Electronic Music All books are in very good condition, the only minor mark is on the slip cover case.
VEMIA note: the smudge on the Foundation book cover is on the camera lens not the book. VEMIA can collect and pack: 3GBP."

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Akai MPC Key 61 Standalone Production Keyboard

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via this listing

Additional Perfect Circuit listings

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Akai MPC Key 37 Standalone Production Keyboard

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via this listing

Additional Perfect Circuit listings

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E-MU Systems Emax I w/OLED and USB Disk Drive SN 2326

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via this Reverb listing

"Just the facts:

1. This E-mu Emax is in good condition.
2. This includes the E-mu Emax itself.
2. This includes an OLED display.
5. This includes a Gotek drive from Monotanz.
6. This includes an IEC power cable.
6. The original power supply has been replaced with a new supply.
7. This does not include the original factory box and paperwork or any floppy disks.

Please take a look at the pictures. As you can see, this Emax is in good condition.

Good condition Emax! Various skiffs and scuffs here and there from 35+ years of faithful service. This Emax functions great: all the keys work, the sliders and mod wheels work, the display has been replaced with an OLED display and is much more readable, the power supply has been replaced with a modern one (much cooler), a Gotek drive is installed and replaces the floppy disk drive, and all of the ins and out work.

I am including a USB key that about 350 disks loaded on it, including the factory samples, third party samples, and some famous samples from an 80s band.

That said, this is an old keybaord. There are skiffs and skuffs on the unit. The potentiometers and digital sliders appear to be in great shape, but there might be some dust and crackles to chase after and clean out sometimes. The audio ins and outs are working without issue, but keep in mind this is a noisy sampler (relatively speaking, compared to 2025 standards). This is old technology, but old technology that sounds AMAZING. But, not noise-free as you might expect from an Elektron device.

Overall, this Emax is in really good shape, and the front panel looks great. A lot of Emaxes I see online, the front panel sticker is de-laminating and peeling off. This one is in super great shape. Take a look!

Please understand this is a well loved sampler from the 1980s."

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Studio Electronics Midi Mini with 1977 Mini Moog cards SN 1561

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via this Reverb listing

"This is a great sounding synth as you can imagine.

It has MINI MOOG cards from 1977 installed also with MIDI in/thru and rack mountable ready to go.

This synthesizer has some pretty cool history.
it used to belong to the keyboardist of 'AHA' Magne Furuholmen and it has been recently serviced by Rob Rosen of 'Rosen Sound' in Los Angeles so it is tip top and works perfectly.

SOUNDS HUGE!!!!!!

Down below [previously posted here] is a cool video explaining this killer synth on all the cool added features, it has compared to the original Mini Moog."

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Sequential Multi-Trak 61-Key 6-Voice Polyphonic Synthesizer

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via this Reverb listing

"Sequential Circuits Multi-Trak from 1985, including a 240 VAC power supply

This synthesizer was produced in relatively small numbers, making it quite rare especially in Switzerland. The Multi-Trak delivers a super fat, classic Sequential sound at a fraction of the price of its famous siblings like the Prophet-5 or Prophet T8. The basses are punchy, it’s 6-voice polyphonic, and features a great filter along with a super cool analog stereo chorus. The menu system is designed so that sounds can be edited quickly and intuitively, even without a dedicated knob for every parameter you don’t need to read the manual to use it. The Multi-Trak is my personal favorite when it comes to affordable vintage Sequential synthesizers."

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