Akai MPC X Standalone Sampler + Workstation + Sequencer

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via this listing

Additional Perfect Circuit listings

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Welcome to the Future

video upload by synthjunk

"Original Composition created with an Arturia Microfreak synthesizer and a MPC2500 for the drum track. Eurorack modules providing some visual background.
From my album named Overtone which is available on Bandcamp,
Spotify and other streaming sites.
Thanks for checking this out."

Akai EWI3030m Digital PCM Synthesizer SN A9415-00813

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via this Reverb listing

Note the seller has additional units listed.

"The Akai EWI3030m is a digital PCM sound module designed specifically for use with Akai’s Electronic Wind Instruments — a family of cutting-edge controllers that have set the standard for expressive wind synthesis since 1987.

Whether you're an experienced wind player or exploring wind synthesis for the first time, the EWI3030m delivers a rich, dynamic playing experience. It features high-quality sampled waveforms and responsive real-time control, capturing every subtle nuance of your performance. Unlike many modern MIDI controllers that rely on quantized steps, the EWI system uses smooth, analog-style control voltages, allowing for seamless transitions in dynamics, filter sweeps, and articulation.

The EWI3030m offers:

Two sampled sound sources (digital oscillators) with 75 high-quality waveforms

Digital filtering, LFO, envelope shaping, and glide for deep sound design
Built-in reverb for added depth

128 fully programmable presets
Footswitch input for switching program chains hands-free

Audio input for EWI-controlled processing of external instruments

MIDI OUT to trigger other sound modules

Designed for expressive performance, the EWI3030m is a powerful tool whether you’re scoring, performing live, or exploring new sonic textures."

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Akai EWI3020M Analog Monophonic Synthesizer SN 19915-00149

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via this Reverb listing, also on eBay

Note the seller has additional units listed.

"CEM Chip Power – Oberheim Xpander DNA – MIDI Capable

Step into vintage analog glory with the Akai EWI3020M, a rack-mounted monophonic synthesizer designed to pair with the EWI3020 wind controller—but just as capable when triggered via standard MIDI! Yes, it can be used without the wind controller, making it an incredible analog voice module for any MIDI-capable setup.

At its heart lies a Curtis CEM3394 voice chip—the same chip found in the legendary Oberheim Xpander—delivering warm, punchy, and expressive tones. Originally launched in the late '80s, the EWI3020M was part of Akai’s bold foray into wind synthesis, but its standalone capabilities and exceptional tone make it a sleeper hit for analog synth enthusiasts and modular-minded players alike.

Key Features:

Monophonic analog signal path with dual VCOs, VCF, VCA, LFO, and dual EGs
CEM3394 voice chip for rich, vintage sound
Wide modulation matrix: 7 sources, 10 destinations
50 patch slots (factory + user)
Waveforms include Triangle, Saw, Square, and Sync modes
Full MIDI In/Out for use with keyboards, sequencers, or DAWs
Rackmount format – a studio-friendly synth module with stage potential
Whether you're breathing life into it with a wind controller or sequencing it via MIDI, the EWI3020M is a versatile, expressive, and highly underrated gem in the analog world."

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Akai S900 MIDI Digital Sampler (1986) /// SERVICED + UPGRADED

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via this Reverb listing

Pics of the inside below.

"The power cable is the original (rare).
The floppy reader has been removed, and replaced by a new Gotek just for the sale, coming from CPmagneticmedia UK (80 €). It is just perfectly fitting, and solid.

Gotek is a game changer. I decided to replace because the floppy reader was not always responsive.
Now you have 4 user banks of 500 slots each + the possibility to organize your data on 16 Go USB key + some installed Akai Libraries + last version system and a screen to read your file names.

See the complete manual online, here is a short list of features I am enthusiastic:

12 bits sampling 7.5-40kHz.

analog low-pass filter
3U format rack
backlight screen
super easy navigation ansy edit
individual transposing + general tuning
velocity sensitive + aftertouch behavior
MIDI in (16) / out
8 voices polyphony and separate outputs
According AKAI themselves, the S900 is their first professional sampler. I confirm the engineering and build quality is superior to other models I owned (S700, S1000 and S1100)."

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Akai S1000 MIDI Stereo Digital Sampler (1988) /// SERVICED w/SCSI Card + Floppies

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via this Reverb listing

Pic of the inside below.

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Custom Black AKAI MPC 60 MKII Roger Linn

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via this eBay listing

This one was spotted and sent in via
M Me.

"The sampler has been completely refurbished. The casing has been painted black. All tact switches have been replaced, the old LCD with a new LED and pad sensors. Additionally, I have installed the Gotek FDD emulator (32GB Sandisk pendrive included), the latest Vimana 3.15B OS, max RAM memory and multivoltage power supply. This means that it does not need step up or step down converters to work! The voltage switches automatically depending on the place in the world. It accepts AC voltage from 65 to 265V. This is probably the only such version in the world. I was going to replace the LCD window, as it has a few scratches, but I'll leave that to the new owner. The glass is available on eBay, and replacement is easy (double-sided tape). Insured shipment."

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Akai S612 with Expansions

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via this eBay listing

"Akai S-612 (US model, including voltage converter). It was serviced just last year (faders were cleaned) and works perfectly. It has two additional special features:

1. The XD-280 Disk Emulator, which can be used to run an HxC Gotek floppy disk emulator (this one with an OLED and rotary encoder). A USB stick with a sound library is included.

2. The FDM Filter Defeat Module. The blue button on the front left next to the display allows you to deactivate the anti-aliasing filter in various ways. This can make the S-612 sound like an E-MU SP1200, with a very crunchy sound."

Oto Bisquit + Vintage Sequential Circuits Prophet VS Vector Synth + Oto Bam Reverb - MikeSynth

video upload by Mikus Pilatus

"Simple sequence - simple effect but effective ."

Akai AX80 w/ Anvil Case

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via this Reverb listing

Pics of the inside below.

"This synth has some cosmetic wear in the expected places (shown in pictures), showing its age; but all features function as they should for a normal working unit. The keyboard includes a rock solid Anvil case made to the measurements of the AX-80 to keep it safe and sound to and from gigs.

The synth has recently been serviced and checked to ensure proper functionality as per the Akai Service manual.

Fresh 3 volt memory battery installed, all 8 voice output levels calibrated via trim pots, 6 new keys and return springs installed, keyboard contacts cleaned, power supply voltages inspected, all PCB solder joints inspected (any cold/cracked joints resoldered), all ribbon cable connections cleaned and secured, all hardware tightened snug, and a general cleaning inside and out.

All voice chips are the original CEM3372 ICs with matching lot (8425) and type (B) designations. CPU ROM (IC4) is the factory D2764 D chip, noted program version I

8 Voices w/ 2 DCOs and 1 Sub Oscillator per voice"

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Beautiful Noises . Oto Bisquit + Sequential Circuits Prophet VS Vector synth. Chilled House Music

video upload by Mikus Pilatus

"Oto Bisquit doing bit crunching
Sequential Circuits Prophet VS on pads
Oto Bam on reverb
Akai MPC1000 on drums

Love that crunch

Sounds like something from the Tron soundtrack or BladeRunner V3"

Akai MFC-42 Analog Filter Rack Unit

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via this Reverb listing

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[1982 Roland Juno-6] Ambient pads with chorus effect

video upload by Fading Capture

"Gear used :

1982 Roland Juno-6
Empress Echosystem
Akai 4000DS (playing drone)"

Retro-Futuristic Beat | Late Night Session with EP-133 & MPK Mini

video upload by ativica

🎹 MIDI Controller: Akai MPK Mini
🥁 Drum Machine: Teenage Engineering EP-133
🎛 Virtual Instruments: Arturia Analog Lab, LABS by Spitfire Audio

🎵 Spotify https://tinyurl.com/zr3vu2n2

909 sequencing Vintage Akai S1000 sampler + recycle - 90’s house music style - MikeSynth

video upload by Mikus Pilatus

"Watch me fumble one handed as I try to jam with the RE-909 sequencing the Akai S1000 over midi. Some samples I cut up in recycle (love you down)"

That time Sequential Circuits made FX - Rare SCI Pro FX Modular FX unit - Dub Techno - MikeSynth

video upload by Mikus Pilatus

"Medium demo of the distortion , phaser , delay.

Rather special unit and incredibly rare."

Synthwave Served – 30-Minute Instrumental Playlist | Chill & Retro Vibes

video upload by Nativica

"🍝 Bon Appétit for Your Ears!
Playlist for creative work, night drives, and deep reflections.
Gear: Korg Minilogue XD, Korg Volca Bass, Teenage Engineering EP-133, Akai MPK Mini

00:00 - Track 1
03:32 - Track 2
07:37 - Track 3
11:16 - Track 4
16:03 - Track 5
21:09 - Track 6
26:37 - Track 7

🎵 Spotify https://tinyurl.com/zr3vu2n2"

Akai S1000 deep haul repair.

video upload by Really Nice Audio

"Join me down the gunky rabbit hole that is the Akai S1000.
What secrets are hidden in the dark corners?

Music by Moverz
Played on Akai MPC's

#synth #sampler #samplers #repair #akai #hiphop"

Inside an Akai S1000.

One Synth One Sound & One Synth One Song Demos by Eyepatch Entertainment

video upload by Eyepatch Entertainment

"Synthesizers making one sound or more with the press of a key. Now with added full tracks!"

131 demos as of this post. You can use the player controls to skip around. There are some rare (as in not often featured) synths like the Midia Musicbox below. Also see Eyepatch Entertainment Synth Studio Tour - May 2018, and 64 FREE PATCHES - Korg Poly61 vitange synthesizer

Midia Musicbox MQ-100 - One Synth One Sound

video upload by Eyepatch Entertainment

Also see

Karl Marx Stadt live at SUPERBOOTH24

video upload by Superbooth Berlin

"Karl Marx Stadt aka Walter Schulze performs live at the SB24 Seebühne.

Karl Marx Stadt (Walter Schulze)
https://linktr.ee/karlmarxstadt

SUPERBOOTH BERLIN
https://www.superbooth.com/en/"