Magnificent 5U / MU modular

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"All modules are in basically good working condition. On a few of them you can slowly notice that they have not been used for a long time, but this should easily disappear again with regular use. One or two jacks are a bit stiff.
I am the first owner. Listed from top to bottom and then the rack on the right (not in the main photo, but full of amazing modules).

ModularGrid Rack 1: https://modulargrid.net/d/racks/view/3056577 Dimensions (W × H × D) approx.: 143.5 × 25 × 22 cm Dedicated power supply (from MoonModular), completely independent. Synthesizers.com Q118 Instrument Interface Synthesizers.com Q125 Signal Processor Synthesizers.com Q105 Slew Limiter Club of the Knobs C 994 Multiples Synthesizers.com Q106 Oscillator (VCO) Synthesizers.com Q106 Oscillator (VCO) Synthesizers.com Q113 8-Channel Mixer Synthesizers.com Q106A Oscillator (VCO) Synthetic Sound Labs The Matrix Algorithmic Composer – Model 1660 Corsynth C103 Frequency Divider Multiplier Synthetic Sound Labs VC Envelope Generator – Model 1230 Synthesizers.com Q107 State Variable Filter (VCF) Synthesizers.com Q162 Filter Mixer for Q107 Synthesizers.com Q109 Envelope Generator Club of the Knobs C 905A Voltage Controlled Low Pass Filter Club of the Knobs C 911 Envelope Generator Club of the Knobs C 902 Voltage Controlled Amplifier Club of the Knobs C 905 Reverberation Unit

ModularGrid Rack 2: https://modulargrid.net/d/racks/view/3056596 Dimensions (W × H × D) approx.: 143.5 × 25 × 22 cm Dedicated power supply (from MoonModular), completely independent. Synthesizers.com Q124 Multiples Moon Modular 563 v1 4-Track/8-Step Trigger Sequencer Moon Modular 528 Sample and Hold Moon Modular 524 Quad Low Frequency Oscillator Moon Modular 524A Quad Low Frequency Oscillator Assistant Synthetic Sound Labs 5-Pulser / Dual Analog XOR – Model 1710 Club of the Knobs C 962B Sequential Switch (bidirectional) Club of the Knobs C 995 Attenuators Synthetic Sound Labs Double Deka VCO - Model 1130 Synthesizers.com Q115 Spring Reverb (Modified with 2 Tanks) Club of the Knobs C 911P v1 Pentaphonic VC Polyphonic Envelope Generator STG Soundlabs Digital Attenuators Synthesizers.com Q109 Envelope Generator Club of the Knobs C 906A Low Pass Gate Club of the Knobs C 906A Low Pass Gate Club of the Knobs C 911 Envelope Generator Club of the Knobs C 902 Voltage Controlled Amplifier Club of the Knobs C 994 Multiples

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Signal Flow Podcast Ep2: Our favourite sequencers, under-the-radar modules & more

video upload by Signal Sounds

Chapters:
00:00 Intro
03:37 News roundup
07:13 Favourite sequencers
23:21 Under-the-radar modules
32:32 Current trends in Eurorack

"In this episode, Tom and Luke discuss their favourite sequencers, share some favourite under-the-radar brands and modules, and chat about some of the current trends in Eurorack, from multi-algorithmic digital powerhouses to manufacturer-specific ecosystems.

Thanks to everyone who commented on episode one! You can get in touch with questions, feedback and suggestions via signalflow@signalsounds.com

Some of the gear discussed:
https://signalsounds.com/xaoc-devices...
https://www.signalsounds.com/dannysou...
https://www.signalsounds.com/new-syst...
https://www.signalsounds.com/make-noi...
https://www.signalsounds.com/noise-en...
https://www.signalsounds.com/making-s...
https://signalsounds.com/fancyyyyy-sy...
https://alteredstatemachines.net/aris..."

The Unperson’s Rings video:

Mutable Instruments Rings is still one of the BEST modules!!

video upload by The Unperson

"Rings by Mutable Instruments is one of the few modules on my 'Never Sell' list. It will always be fun, always sound good, and always have new sounds to discover, and that is the sign of a very well designed module. Join me for 20 minutes of sound and discovery!

Please consider supporting my channel by checking out my patreon: / theunperson

#rings #mutableinstruments #eurorack

0:00 - Intro
1:35 - Overview
3:16 - Drone
7:23 - FM Synthesis!
11:51 - External Audio In
15:02 - Hidden Mode Overview
16:48 - Final Jam!"

SEQUENTIAL TRIGON-6 POLYPHONIC ANALOGUE SYNTH (DESKTOP)

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via this listing

Additional Signal Sounds listings

"We say...
A pre-owned Sequential Trigon-6 in very good condition. It comes with original packaging and power cable

Manufacturer's description
Experience the Power of Three Oscillators and a Ladder Filter with the Trigon-6 Module

The Sequential Trigon-6 desktop module delivers the same massive sound and hands-on sonic control as the Trigon-6 Keyboard. It features the same pure analog signal path with discrete oscillators and filters, and the same high-quality digital effects. It also has the same intuitive layout with full-sized knobs and switches that make it quick and easy to shape new sounds.

The Trigon-6 module sounds huge — just like the keyboard, because it is the same six voice polyphonic instrument, just in a smaller form factor. And if you want even more polyphony, you can use the poly chain feature to link any two Trigon-6s for a stunning twelve-voice synth!

A Sound That is Bold and Familiar

The Trigon-6 is Sequential’s polyphonic take on the classic, thick and creamy, 3-oscillator-plus-ladder-filter analog sound that defined the dawn of the synth era. It’s a sound that bridges genres and styles — now refined and redefined with Sequential’s own modern imprint.

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OBERHEIM OB-X8 POLYPHONIC ANALOGUE SYNTHESISER (DESKTOP)

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via this listing

Additional Signal Sounds listings

"We say...
A pre-owned Oberheim OB-X8 (Desktop) in very good condition. It comes with original packaging and power cable.

Manufacturer's description
NEW functionality now available with OB-X8 OS v2.0 featuring:

Instant binaural mode pans individual voices hard left and right for true stereo operation
Simultaneously selectable waveshapes for each oscillator extends timbral variety
New 4-Pole low pass filter type with fuller bass at high resonance
New VCO 1 and 2 level LFO modulation destinations for independent timbral mixing
Arpeggiator clock sync now has selectable note division values for expanded rhythmic control
Twice the Split and Double memory locations, including program storage directly in the new banks for 512 more stored sounds
Separate MIDI channels for lower/upper split bi-timbral operation
Poly chain for up to 32 voices with 4 connected instruments
MPE for new levels of expressiveness

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Modern Sounds Pluto - Ambient Soundscapes

video uploads by The Pedalboard Orchestra

"A collection of long ambient tracks based on the Modern Sounds Pluto Semimodular Synthesizer and various effets pedal setups."

Playlist:

1. Modern Sounds Pluto Synthesizer – Ambient Demo & Sound Exploration

These are my first "ten minutes" (okay, the video turned out a few minutes longer 😉) with the Modern Sounds Pluto semimodular synthesizer.
🎧Headphones recommended for the full sonic experience.

In this small setup Pluto is accompanied by three pedals, the Strymon El Capistan v1, the Chase Bliss/Goodhertz Lossy and the Eventide Space in ModEchoVerb algorithm, all in stereo.
Pluto, this tiny little box, is such a fascinating and inspiring instrument. You can get a million and more of sounds out of it.
I love how the filter of Lossy changes the overall mood of the sounds.

All sounds and video footage by The Pedalboard Orchestra.

(Disclaimer: This is a non sponsored video. All equipment is self-purchased.)

#modernsoundspluto #ambientdrone #ambientsoundscapes #ambientmusic #meditationmusic #modernsoundspluto #semimodular #strymonelcapistan #chaseblisslossy #eventidespace

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Roland System 700 SN 550082

Note: links to listings are affiliate links for which the site may be compensated.

via this Vemia listing

Click the auction link on top when you get there for additional listings.

"This is a unique opportunity to buy a monster synth, that is also a piece of synth pop history. Two cabinets plus the original keyboard, all lids, interconnection cables and original manual included. The first cabinet is a Roland System-700 Lab is one of the rarest and most sought-after modular synthesizers ever built.
Introduced in 1976 as part of Roland’s legendary System-700 series, the Lab version was designed as a compact, self-contained modular laboratory for advanced sound design, research, and education — but with the same discrete analog circuitry, massive sound, and build quality as the full studio system.

This one was owned by Bill Vorn, keyboardist of the synth-pop band Rational Youth, used in the following albums dated 1981 to 1983 : Rational Youth, Saturdays in Silesia, City of Night and I want to see the light, as reported in the certification signed by Bill Vorn himself, provided in the item. The second one is another original SYS 700 one, connected and internally cabled to the main one by means of the original cable, with the super rare modules that you see in the picture: an additional, multimode filter, the great output module and… a professionally custom module with a perfect ARP 2600 VCF clone… plus other stuff.

All the best Sys 700 modules, featuring the iconic vintage Roland tone — warm and incredibly dynamic — and offers an extraordinary range of sonic possibilities thanks to its flexible patch architecture. Perfect for collectors, professional studios, or synth enthusiasts looking for a centerpiece instrument with historical and musical significance. The system sports a comprehensive modular architecture with 3 oscillators, 2 filters, 2 VCAs, 6 envelopes (!), mixer, phaser, spring reverb (HUGE) and …utilities.

Legendary System-700 sound — powerful basses, evolving textures, experimental tones. What to say more? Fully functional and in very good cosmetic condition with minor signs of use. You will never find another in such condition. Last call…"

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SEQUENTIAL OB-6 SYNTHESIZER

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via this listing

Additional Signal Sounds listings

We say...
A pre-owned Sequential OB-6 Desktop in very good condition. It has a few dings to the wooden side cheeks. The outer packaging is slightly worn but original and it comes with the power supply and manual

Manufacturer's description
Classic Oberheim Sound — Made Portable
The OB-6® desktop module is just as powerful and easy to use as its counterpart, the OB-6 Keyboard. The module has all of the same controls as the keyboard version and provides the same immediacy and ease of use. As with the OB-6 Keyboard, all parameters are at your fingertips, with full-sized knobs and switches and a comfortable, intuitive layout.

How does it sound? Massive — just like the keyboard, because on the inside, it’s exactly the same. The same analog signal path with discrete VCOs and VCFs. The same high-quality digital effects. The same classic Oberheim sound that has been earning raves from musicians around the world.

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ELEKTRON OCTATRACK MK2 SEQUENCER & SAMPLER

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via this listing

Additional Signal Sounds listings

We say...
A pre-owned Elektron Octatrack MK2 in very good condition. It appears to have been originally sold as a b-stock unit. It has all original packaging and accessories.

Manufacturer's description
With the Octatrack MKII, discovering the perfect sample is only the beginning. Twist it, distort it, and carve it into something that is truly yours. Dynamic in name and nature: this is the ultimate sampler for recording sessions, creative kick-starts, and improvisational performances. A stereo sampler, looper, arranger, mixing and effects hub, workstation, performance instrument: you name it. Its power scales and evolves with you during your musical journey.

The Octatrack MKII redefines how you transform your sounds, as well as how you interact and play with them. It is a stereo sampler, processor, and live looper with a powerful sequencer and workstation workflow on top. Choose between several custom machines – static, flex, thru, neighbor, pickup – to suit your sample recording, manipulation, and effects processing needs for each of the eight tracks.

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ELEKTRON MODEL:CYCLES SIX TRACK FM GROOVEBOX

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via this listing

Additional Signal Sounds listings

"We say...
A pre-owned Elektron Model:Cycles in very good condition. It has no original packaging but comes with its USB cable and power supply

Manufacturer's description

Scale angles dense and jagged, glide over plains vast and fluid or sink into mists of dissonance. To model is to shape the formless. Model:Cycles is a six-track FM-based groovebox that brings exploring into the heart of sound sculpting. With six unique machines in one lightweight unit, you can effortlessly mold rhythm and melody across the digital spectrum using instant, tactile controls. Exploration made attainable.

The six machines of the digital FM engine cover both percussive and melodic synths, allowing you to make full, varied compositions. The four core synth controls put the tools of sound sculpting right in front of you, altering the behavior of each machine differently and letting you push them to the limit. Every sound has a start, where will you take it?

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ROLAND TR8S DESKTOP DRUM MACHINE

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via this listing

Additional Signal Sounds listings

"We say...
A pre-owned Roland TR8S in good condition. It comes with original packaging and power supply

Manufacturer's description
Born of the most famous and influential drum machines ever made, the TR-8S combines the best of its Roland heritage with modern production techniques and comprehensive sound design. The result? The most complete drum machine to date—a forward-thinking, performance-tuned instrument unlike any other. Build your dream kit from the most iconic drum sounds of all time, otherworldly FM sounds, and the finest selection of samples from our vast library—or go even further by importing your own custom samples. Tap, tune, and tweak with hands-on controls and production tools that make your patterns move and groove. And why keep this kind of percussive power confined to the studio?

The TR-8S comes loaded with the largest, most authentic collection of iconic Roland drum machines available. The powerful processor gives our next-generation ACB models a whole new level of detail and nuance with that classic boom, snap, and sizzle. Enrich the core drums with a spectrum of futuristic and editable FM sounds, plus preset and custom samples for unique hybrid and layered kits. Then enhance them all with specialized effects to inject professional sound design into the TR formula."

Shakmat Ballista Blast : Demo

video upload by Shakmat

"The Ballista Blast is a compact hybrid synthesizer voice built to hit hard, move fast, and cover a serious amount of ground in just 12hp.

It blends digital sound engines with a proper analog processing chain, so you can go from squelchy basslines to glassy textures, from smooth harmonic tones to wild, chaotic mayhem, without being stuck with a single ammunition type.

To keep things alive, the Ballista Blast includes a built-in envelope, an assignable random source, and a velocity input, all routable to nearly any parameter, so even the simplest patch can feel animated and performance-ready.

Because good shots deserve a save button, Ballista Blast stores 256 presets, with Select Bus support for quick recall in a system built for action.

CHAPTERS
---------------------------------------------------
0:00 Sound Excerpts
2:02 Architecture
2:38 Controls
4:35 Main Synthesis Menus & Engines
10:31 Classic Engine
14:00 Wavetable Engine
18:05 FM Engine
24:53 Integrated Envelope
29:28 Randomizer
32:10 Velocity
34:12 Memory
37:20 SD Card
38:42 Global Options"

Shakmat Ballista Blast Expander : Demo

video upload by Shakmat

"The Ballista Blast Expander adds a flexible modulation source to enhance your Ballista Blast. The main module is fully CV controllable and gives CV access to almost any parameter but what if you can have a dedicated modulation source assignable with configurable depth to the key parameters of the Ballista Blast ? What if those modulation settings can be stored and recalled with your favorite presets ? This is what this expander has to offer.

Did we say you can have two expanders per Ballista Blast ? Two expanders, two times more modulation, twice the fun.

CHAPTERS
---------------------------------------------------
0:00 Intro
0:50 Installation
2:58 Menu
6:28 Destination"

POLYEND TRACKER MINI PORTABLE AUDIO WORKSTATION

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via this listing

Additional Signal Sounds listings

"A pre-owned Polyend Tracker Mini in very good condition. It comes with original packaging and accessories.

Manufacturer's description
Discover the ultimate portable music workstation with the Tracker Mini. Designed for seamless composition, sampling, sound design, and performance, this device offers an expanded 16-track sequencer alongside unique synth and drum machine engines for unparalleled flexibility. With support for 14 stereo tracks of USB Audio and USB MIDI, it's perfect for multi-track recording into a DAW or hybrid setups. Enjoy up to eight hours of battery life for on-the-go creativity, and keep your Tracker Mini safe with the included travel case. Whether in the studio or outdoors, the Tracker Mini empowers musicians to create, mix, master, and export their music effortlessly.

Synths and Drum Machines:
The Tracker Mini excels with four advanced synth engines and a new drum machine synth, focusing on superior sound quality. The intuitive Synth Patch Editor speeds up patch creation and customization, offering a vast range of sounds. From lush pads and intricate arpeggios to powerful basses and robust electronic drums, the Tracker Mini is a synth powerhouse that meets all your creative needs. Dive into ACD for iconic monosynth recreations, FAT for rich analog warmth, VAP for complex polysynth designs, and WTFM for unique FM synthesis. The PERC drum instrument covers everything from classic 808s and 909s to experimental glitch effects.

Studio in Your Hands:
The Tracker Mini provides everything required to produce an album. Start with an included sample pack or explore over 250 synth presets. Record your own sounds, convert samples to instruments, and resample synth engines. Control external devices seamlessly, whether crafting simple beats or complex compositions. Mix, master, and export your songs with ease, making the Tracker Mini an all-in-one solution for any musician. Compatible with projects from the original Tracker, you can begin a song in the studio and finish it on the go, ensuring flexibility and convenience in your music production process.

Breathe Life into Your Tracks:
Transform your surroundings into a musical canvas with the Tracker Mini’s high-quality microphone and onboard battery, offering up to eight hours of playtime. Capture sonic memories from a camping trip or your morning commute to create unique sample packs and drum kits. This portable device inspires creativity beyond the studio, enabling you to store, manipulate, and draw inspiration from real-world sounds. The Tracker Mini ensures that wherever inspiration strikes, you're equipped to turn those moments into music."

BASTL INSTRUMENTS MICROGRANNY MONOLITH DESKTOP GRANULAR SAMPLER

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via this listing

Additional Signal Sounds listings

"A pre-owned Bastl Instruments Microgranny Monolith in very good condition. It comes with original packaging and accessories.

Manufacturer's description
Granny’s back with a brand new lid: our classic desktop granular sampler gets a facelift, bringing her into the modern age with enough usability upgrades to last another lifetime, rehomed in sleek black PCB-material to help it look the part amongst the latest in the Bastl range.

The Microgranny 2.0 that you know and love is still there under the facelift: lo-fi sound full of character packed into a hands-on monophonic desktop sampler that is a joy to experiment with. Plug in your microSD card loaded with 8-bit samples, or record them live through the in-built mic or line input, and jump into play with 6 samples right under your fingers, or instantly recall up to 60 saved presets.

Playability is paramount
The two-tier menu lets you dart between editing grain size or warping the playback speed, and the new-look tactile knobs grant better control than the previous model. The hazy plastic case is gone, and the PCB case’s sharper text makes the modes under the new and improved buttons more enticing – delve into Randomized mode, Legato playback, or the Instant Loop function to extend the virtually limitless possibilities of the surface controls yet further.

MIDI Control? Yep: play specific grains with keys, control the CC values remotely, even clock-sync loops and grains. Take your Granny for a walk in the park with the battery power, or run it through a wired 9V supply."

How "Kalimba of Doom" was made

video upload by HAINBACH

"I recently made a little 20 second clip showing the "Kalimba of Doom" patch I had setup on my TTSH and resonators. This gathered over 850000 views across platforms, and many questions came in about how I made this. So here is the sound design how to. Check out my Patreon for the sample pack: / hainbach"

00:00 Intro
01:48 History & Inside Look
04:18 Sample instrument
05:08 Function Overview
12:38 Chiptune Break
13:42 What makes it good?
17:15 The Future of TI?

Kalimba of Doom

video upload by HAINBACH

Stereo VCFQ | Serge Modular | Episode 10

video upload by Cinematic Laboratory

"Serge Modular made the legendary VCFQ stereo. While having three inputs and six outputs, the AGC (Auto Gain Correction) and Notch out had to go. In normal operations, it's a true VCFQ which you can use in both mono and stereo patches. The AUX input can have dramatic results when self patched as feedback. I'll be using the VHIKK X in this video as the primary source, a source that doesn't need an extra filter to sound good. In fact, this creates the challenge of which module dominates which. In general, it's always the module that cuts the other one's frequency range. Finally, I'll use my mono VCFQ and the ST-VCFQ to process the X's L/R channels independently. Now the fun begins :)."

Xenodrive and DB-01 twins (no talk)

video upload by Richard DeHove

"Why does the Xenodrive not want to let me go? I've had all sorts of good intentions for other content and other devices, stuff that I'm really impatient to show, yet here are we are with the Xenodrive again. I suspect it's down to two things: First that I've cycled through loads of dirt pedals and effects and rarely found one that has more than a single good sound. The Darkglass B3K for example has a brilliant effect on synths, but despite having four knobs and two buttons, it only has one sound. The Xeno has loads of flavors to explore. Second reason I am fixated on this device is that it's finally given me the 'punk synth' sound I've always wanted. Which is largely what we have in this video.

I originally had a big blabfest at the start of this video talking about the Xenodrive in detail but on sudden impulse I cut it all out. I think I was mesmerized by the Xeno and it was giving me instructions. I must exert my free will while I can. If my next video features the Xeno, send help.

Routing here is the MIDI out from the master DB-01 (left) to the rightside DB-01. The master DB-01 has an 8-step random-generated pattern, the leftside DB-01 is empty. Audio goes from each DB-01 to the Xeno left and right. As usual there is absolutely no other processing.

Many thanks to my kind patrons who keep this channel ad-free" My website: https://richarddehove.com/"

Sequential Circuits Studio 440 SN 00582

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via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Probably one of the best examples of the classic Studio 440 anywhere.
Sampler/sequencer/drum machine from Sequential Circuits, circa 1987. S/N 582. The present owner bought this from Wine Country in 2007. It has version 2.30 (SCSI) operating system by Pointsource, 512K RAM, 12-bit sampling, up to 35 seconds sample time (at 16kHz, max rate is 44kHz), 50,000 note sequencer capacity, 8-note polyphonic, stereo audio outputs as well as individual track outputs 1 to 8. And, of course, it has MIDI – very easy to sequence up other synthesizers.

Quite a lot of functionality in a single box and easy to operate. The Studio 440 is fairly rare (about 600 made through 1986, ’87) and considered one of the pioneering forerunners to the later MPC units of the nineties.

This unit is in excellent condition – the cosmetics are very good, with tiny scratches around some of the edges of the enclosure. The main panel paintwork, graphics, knobs and switches are like new. No known issues operationally. Disks load fine, sound configuration, sampling, sequencing and audio all good, menus look normal. Display backlight is good, all hardware good. An easy instrument to get to know and operate, and sounds pretty good for a 12-bit sampler. Includes original manual (NOS from Wine Country), some service data, a number of sample disks, head protector disk (this will have to be ejected following transit) and a survival kit consisting of 8 spare touch pads (unused), two NOS pots, one switch module, one I-624 voice chip. The mains connection is standard IEC socket. The buyer will have to acquire their own mains cord that suits their country and change the internal voltage setting if necessary (explained in the manual. The present setting is 230V).

Weighs 10kg. Unit measures approximately 60x30x16cm (including manual, disks and spare parts). Packaged up, will be maybe 10% larger and heavier. The item is located in New Zealand. Examples of approximate door to door air-freight shipping costs, including insurance, at the time of writing, are: UK/Europe, 300GPB/Euros. USA, $500USD (US tariffs may change at short notice). Australia, $250AUD. Costs to be confirmed upon sale. Importing customs charges and tax are buyers responsibility. You're welcome to find alternative shipping at your expense and risk."

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Experimenting With Electronic Music by Robert Brown & Mark Olsen

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via this eBay listing

"Published the very same year electro-industrial pioneers Kraftwerk released their breakthrough album 'Autobahn,' here's a wonderful, rare book covering virtually everything you ever wanted to know about music synthesis and reproduction. Within its pages is an overview of the history of electronic music, from RCA's tube-based Mark I to modern solid-state synthesizers, with photos of the Minimoog and the Moog Sonic Six, as well as the Tonus ARP 2500, 2600, and Soloist consoles. For you tinkerers out there, the book also contains numerous construction projects, including two (2) separate transistorized theremins complete with detailed alignment instructions. All projects come ready-to-build with full schematics and parts lists.

Small crease in corner of cover and first few pages are lightly dog-eared/chipped with tape repairs. Apart from some age-toning and a little cover wear, the book is in very good condition. Softcover, 180 pages. Copyright 1974. This item ships WORLDWIDE

Contents include:

Musical Electronics

History - Mechanical Tone Generation - Electronic Tone Generation - The Music Synthesizer

Sound and the Electronic Signal

Sound - Harmonic Motion - The Sine Wave - Additive Synthesis - Square Wave - Sawtooth Wave - Beat Notes - The Envelope - White Sound - Using the Complex Wave

The Instruments

Mechanical Tone Generators (string, wind, and percussive) - Experimenting

Microphone and Pickup Applications

Principles - Ceramic and Crystal Applications - Homemade Ceramic - Homemade Percussion - Dynamic Microphones - Magnetic Pickups - Homemade Magnetic Pickup - Condenser - Impedance

Building a Small Electric Organ

Tone Generation - General Construction - Tremolo Modulator - Mixer - Homemade Keyboards - Combining the Stages

The Electronic Modifiers

Tremolo Circuit - Envelope Control Circuit - Trigger Circuit - Attack Envelope Generator Circuit - Photoelectric Modulator - Reverberation - Chime Device - "Fuzz" Circuit - Sustain Circuit

Electronic Tone Generators

Multi-waveform Generator - Pink Noise Circuit - Two Theremin Projects - Automatic Percussion Circuit - The Almost Nightingale - Mini-Organ

Odds and Ends

Two-Channel Mixer - Three-Channel Mixer - Voice Selector - Variable Bandpass Amplifier - Active High-Pass Filter - Resonant Filter - Tube Filter - Tape and Echo"

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Moog Opus 3 — "New Old Stock" Sliders, Switches, Controls, Control Caps & Knobs SN 5828

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via this eBay listing

"The Moog Opus 3 is a vintage polyphonic synth that combines string, organ and brass sounds in a four-octave keyboard, along with flexible controls for shaping each sound.

One of the coolest things about the Opus 3 is that it has a classic Moog four-pole filter that the brass and organ can be run through. The filter has the sound Moogs are famous four, and it can be run into self-oscillation.

The synth also features a three-phase chorus effect that uses the famed Reticon bucket brigade chips, as well as stereo and mono outputs.

Here are details about the unit for sale:

The old, deteriorating foam that sat below the control panel has been removed from this one, so you don’t have to worry about it.

All of the sliders, switches and rotary controls — except for the master volume — were changed out for New Old Stock replacements. All the slider caps and control knobs are New Old Stock as well. Everything works smoothly, with no noise or issues.

The master volume has very minor crackle at the top end of its range while it’s being moved. It is otherwise noise-free during normal operation. I would have had it changed out but it wasn’t possible to source an original replacement.

One of the three original Reticon chips in the chorus effect was replaced when an original failed. All three are working, and the chorus sounds great.

The original red LED in the Modulation section was swapped out for a new bright blue LED.

I wasn’t able to test the sustain jack on the unit’s front panel. Moog chose an unusual size jack here— it’s slightly smaller than a 1/4-inch input. It would be easy to swap it out with a proper 1/4-inch jack if you choose to do so.

The physical condition is very good. Note the scratches to the wood and some minor marks on the faceplate.

All of the notes sound as they should, and all controls and functions work as they should.

HELPFUL NOTES
Although its functions are basic, you’ll need to understand the signal routing in the Opus 3. These are spelled out in the owner's manual (which is available online), but knowing the following will help you get your head around it.

For example, the chorus effect operates on the strings and organ, not on the brass. This is by design and is noted by an arrow on the control panel.

The Moog four-pole VCF can be used on the organ and brass, not the strings. Again, this is by design and is noted by an arrow on the control panel.

Frequency Modulation works on all sounds, but VCF modulation only works on the organ and brass because these are the two sounds that can be run through the VCF (see the point immediately above). Again, this is by design.

The length of chorus delay is set by using the delay fader in the Modulation section. This too is by design.

Two other noteworthy points:

• The pitch wheel has a firm detent (the point at which it sits at pitch). Other owners have noted the same thing about their units in online forums. It’s not difficult to work, but it’s firmer than on other synths I’ve owned.

• All of the electronics, aside from those mentioned above, are original and working fine. Electrical components can fail or become damaged with time and/or misuse. Always be sure you are connected to proper voltage, and note that ground loops can introduce hum."

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Vhikk X + Natural Gate Hits Hard!

video upload by Metamyther

"In this video, we combine the raw sonic power of the Vhikk X and the Rabid Elephant Natural Gate. If you're into Eurorack modular synthesis, hardware synth sound design, industrial techno production, and experimental electronic music, this demo shows how good of a pairing these two classic modules are. Perfect for anyone exploring the darker side of modular sound design."

Chapters:
00:00 - Intro
00:26 - Setting Up Bass Layer
01:32 - Drums
02:20 - Lead
03:00 - Arranging and Mixing