OCTAVE ELECTRONICS CAT SRM Demo

video upload by Synth Tailor Electronics

"Here’s another Octave Electronics CAT SRM synthesizer that we restored here at Synth Tailor Electronics. This demo video is for the owner, Rick Bottari going over functionality/quick play through of the CAT SRM!

Repairs done:
-Rebuilt PSU
-Replaced polarized electrolytic capacitors and tantalum capacitors
-Full rebuild on Pratt Read Keybed (new bus bars, bushings, and J wires)
-Fixed tuning problems due to intermittent resistor/bad op amps
-Hit cold solder joints on connectors
-Replaced RCA CMOS for future reliability
-Cleaned up front panel, controls, pots and switches
-Full calibration, tuning and 24 hour burn in

If you have a vintage synth, drum machine, outboard effects or tape machine that needs repaired, please contact us on our website: www.synthtailorelectronics.com"

Scott McAuley - You got this energy (Disco Funk Mix) [Featuring the Oberheim TEO5]

video upload by Scott McAuley Sounds

"Patches will be available at https://www.orano.co.uk/shop or http://www.synthsounds.co.uk

All synth work (Bass, Pads, Stabs, Solo, etc) was using the Oberheim TEO5.

Very Summer like feel to this one!

enjoy!
© Scott McAuley. All rights reserved."

Master Modular Synthesis with the ERAE: Learn to Patch Like a Pro

video upload by embodme

"Discover how the ERAE takes control of a modular synth in this hands-on tutorial. From expressive performance techniques to foundational patching tips, we’ll guide you step-by-step through setting up your modular rig with the ERAE as your controller. Whether you’re a beginner or looking to level up your patching skills, this video will help you unlock new creative possibilities."

Check with dealers on the right for availability.

ADDAC 511 Stochastic Voltage Generator

video upload by Cinematic Laboratory

"ADDAC has added a really promising voltage generator to the line-up, which is labelled 'stochastic'. There are roughly three levels of randomness covered by the module. The first is traditional random voltage we know from sample and hold circuits. Then there's aleatoric, which is more controlled e.g. by using a scale and time signature variations. Aleatoric is about throwing dice, but these are used to generate variations in a stream of scaled notes. The final mode is 'stochastic' where a composition is created by setting rules and boundaries that would sculpt the composition. This can go as far as introducing chances of individual notes, scale changes and key changes, but also includes generation of expressions and envelopes. While this is still unnatural, it mimics a performance of a natural player.

The 511 has four channels with gate/CV outs, there's an internal clock, but are four external clocks to drive all kinds of events. You have eight CV inputs to add external influences and there are three logic outputs which will support conditional boolean events, counters and clocks. This is simply not a module I can explain in 20 minutes and a 60+ page manual is inevitable.

Compared to competitive modules like the SIG and the Melodicer, the 511 is prepared to design first, and play later. The others are more for live improvising with generative parameters, where the 511 lets you prepare the parameters with three states per preset, and each preset can be a movement in your performance. It all sounds like a lot of work, and it is, but IMHO the 511 is currently the most powerful generative module in eurorack.

I also need to say that there's a LOT of code involved. There's a menu per button approach, but still, there are a lot of buttons. This also applies to the SIG and honestly it could use a menu. I still haven't figured out the SIG. Melodicer is super easy, but it can only generate one CV/GATE pair.

Since it's also brand new, there may be updates. If you don't have the patience of an early adopter, I'd recommend sitting this one out."

See the announcement post here.

Présentation du SynthR10 au SynthFest 2025

video upload by oZoe_fr

"Présentation, exhibition, par Jean Luc Briançon du SynthR10 de Rémy Wasselin sur la scène du SyntFest 2025 à Nantes. Il s'agit d'un synthétiqeur polyphonique 10 voies entièrement analogique. oZoe.fr à réalisé le logiciel de controle."

Googlish:

"Presentation and exhibition by Jean-Luc Briançon of Rémy Wasselin's SynthR10 on stage at SyntFest 2025 in Nantes. This is a fully analog, 10-channel polyphonic synthesizer. oZoe.fr developed the control software."

Ambient Music w/ EP-133 K.O.II OP-1 field Prophet-10 | Human Current 2025-04-15 by atnr

video upload by atnr

"A piece created with the ‪@teenageengineering‬ EP‑133 K.O.II, OP‑1 field, and ‪@SequentialLLC‬ Prophet‑10. Quiet electronic tones mingle with echoing found sounds.

Prophet‑10: Plays the harmonies with blueSky reverb.

EP‑133 K.O.II: Processed through ‪@gfisys‬ SPECULAR TEMPUS for reverb and delay.

OP‑1 field: Runs an ENDLESS‑sequenced phrase while its synth filter is manipulated; the output passes through ‪@strymon‬ NIGHTSKY for additional filtering, reverb, and modulation."

A-V-P Synth RITMOBOX // DRUM SYNTHESIZER with 5 VOICES // NO FX // DUSTING OFF 2

video upload by LESINDES

"A-V-P Synth RITMOBOX had a broken power supply. AC! So I had no substitute and could finally fix it now. Happy to welcome the pure sound in the studio again!"

Introducing Monumatic - Polyphonic Synthesizer Module by Knobula

video upload by knobula

"An introduction to the sounds and features of our new synth voice module for eurorack.

• 16 oscillator Modes
• 6 Filter types
• 8 voices
• 24 bit stereo reverb
• 8 Chord Memories
• 4 CV inputs ( 2 assignable to anything)
• Adaptive intonation
• 12 hp

In this video we demonstrate Monumatic's capabilities alongside other modules and controllers, these include;
Intuitive Instruments Exquis
Knobula Chord Pilot
Knobula Echo Cinematic
Knobula Kickain
Endorphins Queen of Pentacles
Jasmine and Olives Water
Bela Gliss
Arturia Keystep"

Knobula Monumatic Synth Demo (no talking): 18 Patches

video upload by Limbic Bits

Monumatic is a fully polyphonic 8-voice synthesizer and a monophonic synthesizer packed into a compact 12HP Eurorack module.

It features16 selectable oscillator modes to provide a diverse range of both classic and futuristic tone generation using exclusively virtual analog algorithms.

CLICK FOR MORE »

L-Fusion Electronics Introduces Analog Kicks 808+909 Eurorack Module

video upload by LFusion Electronics

"Updated demo video showcasing L-Fusion Modular Analog Kicks Eurorack module with walkthrough through all the parameters, also tips how to get most of it using filtering and EQ. For best listening experience use studio headphones/speakers that can handle the low end.

Module is available on Reverb.

808 kick generates softer more boomy kick sound while 909 outputs more aggressive punchy kick often used for making techno. Built using modern components – Audio grade Burr-Brown OpAmps, low noise transistors as well as quality capacitors including legendary WIMA German ones where larger values are needed - module provides two clean analog sound outputs with dynamic range of over 90dB.

808 kick is based on T-Shape resonator, often used in Electro/Acid tracks. It has decay, pitch and tone knobs. The circuit has been modified for longer maximum decay.

909 kick is more complex, it generates more aggressive punchy kick sound often used making techno, its core is based on integrated triangle shape oscillator. This kick drum can be controlled with original attack, decay, tune, tune decay potentiometers. Original 909 circuit has been improved for longer maximum decay, we have also integrated extra potentiometers for soft clipping distortion and fast decaying attack noise control."



"Introducing new kick drum module with famous 909 and 808 base kick drums based on on original discrete transistor circuits. 808 kick generates softer more boomy kick sound while 909 outputs more aggressive punchy kick often used for making techno. Built using modern components – Audio grade Burr-Brown Opamps, low noise transistors as well as quality capacitors including legendary WIMA German ones where larger values are needed - module provides two clean analog sound outputs with dynamic range of over 90dB.

CLICK FOR MORE »

Introducing Mango - MIDI & CV Controller by NoisyFruitsLab

video upload by NoisyFruitsLab



"Mango is a hybrid MIDI & CV controller for desktop use, following the controller product line of 'Coco', 'Kiwi' & 'Lemon'.

Digital & analog control at one spot
Full focus on live performing with for example 4 synthesizers, 8 drum channels and 2 sub channels or FX controls.

141 adressable controls across LED faders, potentiometers, encoders and buttons Modular synthesizer integration with 32 adjustable CV outputs for all faders and most of the potentiometers, covering a range from 0-5V or 0-10V

Slim size OLED display for precise value adjustments
Highly USB friendly with low current draw

Web & Desktop Editor to modify all MIDI based parameters and to create own presets Covering almost every analog control for CV out

Technical specs:
Dimensions:
335 mm x 262 mm x 40

USB Power:
5V 350mA

CV outs:

Configurable with solder bridges on the backside of the mainboard
Pre configuration:
Fader: 0-5V
Potentiometer: 0-10V

MCU :

Raspberry RP2040
Firmware:
OpenDeck mini by ShanteaControls licensed under Apache 2.0
noisyfruitslab.com"

Intellijel Multigrain

video upload by ranzee

"This is an excerpt from Synth Geekery ep 291. If you missed it, we showed the latest module from Intellijel - the Multigrain!!

The Intellijel Multigrain is a 20HP stereo morphing granular sampler designed for Eurorack systems. It offers eight simultaneous sound slots, each with dual scene morphing and extensive modulation capabilities. With high-fidelity audio processing, onboard resampling, and a unique Blur reverb effect, Multigrain provides a versatile platform for intricate granular synthesis. Users can load samples via microSD or record directly into the module, enabling dynamic and expressive sound manipulation.

Watch the full video here:"

Synthy Tests

video upload by ranzee

https://ranzee.com

https://www.patreon.com/ranzee

PlantsSystem-TalkBack OpenSourceModularSynthesizer "SurgeXT"

video upload by plantssystem

"SurgeXT offers a wide range of synthesis techniques in a single engine, including traditional subtractive synthesis, FM, wavetable, linear phase distortion, and waveshaping.

Each voice has three oscillators, each with up to 12 oscillator models. Independent tuning and unison capabilities allow for extremely versatile sound creation.

The filter section has multiple modes, including digital, analog modeling, combo, and feedback, and offers over 12 filter algorithms to choose from. In addition, 24 modulation sources and up to 171 modulation targets allow for highly dynamic control over sonic transformations.

Over 30 built-in effects are available, with flexible parallel/series connections and multiple slot routing. VST3/AU/LV2 compatibility and native operation on Linux, Windows, and macOS.

SurgeXT is more than just a free synth; it has specifications that meet the needs of professional production environments."

Introducing RollBud - DJ Style Rolls and Trance Gate Effects - AUv3 FX for iOS

RollBud - Trance Gate & Roll FX video upload by Cem Olcay

"I’ve released my new app RollBud for DJ style rolls and trance gate effects.

- The XY-pad is customizable for both X-axis (beat lengths) and Y-axis (envelope or mix controls), and it’s also MIDI controllable.

- You can record your movements and play them back. They are saved in iCloud and also the recordings can be triggered with MIDI as well.

- The roll mode has a reversed roll mode playing the loops backwards, and the trance gate mode has a inverted envelope mode for fun.

- Envelope’s rise and fall ratio, curve (logarithmic to linear to exponential) and amount, as well as the dry/wet mix can be set on the UI.

More technical details on the effects:

- Roll mode: records the input signal and starts to loop the last beat from the recorded buffer. The loop length is selected on the xy-pad. Applies the envelope on the each loop. The live signal continues to run underneath and with the dry/wet mix you can balance the mix as you’d like.

- Trance gate: applies the envelope to the live input signal. The envelope duration is selected on the xy-pad. You can use the dry/wet mix to balance the intensity of the effect."

https://keybudapp.com/rollbud

https://apps.apple.com/usus/app/rollbud-trance-gate-roll-fx/id6743325110

SHADES - NEW Sound Bank for Quantum/Iridium🔥🔥🔥

video upload by SMV Producer

"This is my last sound bank for these incredible synths. Some beautiful evolving pads, sequences and FM sounds, are part of the soundset. Everything was straightly recorded without any additional processing.

Enjoy....

Sound banks available for purchase at:

https://gumroad.com/smvproducer

Other links:
Bandcamp : https://sergiomassimilianovarvazzo.ba...
Instagram: / smv_producer
Smartlink: https://ffm.bio/smv_producer

TIMELINE
00:00 One Osc Dream Pad
01:16 OB 18 Dreaming Steps
02:30 Lost Somewhere
04:46 18 Steps
05:56 Experiment
07:46 WT Sequence
08:34 Very Slow Pad
10:24 Sequence Lover
11:26 Airy Pad
12:14 FM Bass
13:14 It is a butter
13:55 15 Steps with FM
14:37 Schizoid - Watch till the end
17:01 Wave Goodness
18:46 FM Goodness
19:36 8 Steps random Waves
20:16 Straight FM
21:04 Techno
22:41 FM Experience"

Dave Smith Evolver - Modern Sampler Series 110 Samples & Sequences

video upload by LFOstore

"Nick Klimenko sampled one of the most intriguing Dave Smith synthesizers - Evolver!

BUY: https://lfo.sellfy.store/p/dave-smith...

Now you have an access to 110 exclusive sequences - 100 PBM, root C
directly from our soundset 'Are You Sequenced?' for Evolver.

Hi quality 24/44 samples (570 mb) in root 'C' in different octaves to transpose to any note you want.

Fields of using:
*You can use this sounds directly in your tracks
*Put in Sampler – Kontakt, Ableton, Cubase

Attention: due Evolver architecture - BPM clock is not stable, its floating, so if you want to use samples in the rhythmic tracks - take first 4 BARS from every sample - they are perfectly synced.

Note: this pack contains only SAMPLES, not PRESETS for mentioned synthesizers!

Touch the Treassure with our 'Modern Sampler' Series!
Enjoy!"

FESMA PK-70 - Vintage Italian Synth (1985) HD

Note: Auction links are affiliate links for which the site may be compensated.
video upload by Alberto Napolioni

Note this appears to be the first PK-70 to be featured on the site.

FREE IMPROVISATIONS
on this absolutely rarity
the FESMA PK-70!

00:00 Melancholy Glitch
00:27 SINE tempore
00:41 Arcadia
01:01 VaporWaving
01:22 Reverse Cascade
01:43 SAYONARA
01:56 Robotronics


FX Used on some parts:
OTO BAM reverb
OTO BIM delay

via this Reverb listing

"The unfindable FESMA PK-70!(a prototype probably)

Features:

Vintage wavetable synth,with effects, custom drums, MIDI & built in speakers, etc

Fully SERVICED by pro tecnician

Comes with its power charger and custom Case."

CLICK FOR MORE »

Akai AX80 w/ Anvil Case

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

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"

CLICK FOR MORE »

Korg Mono/Poly SN 373070

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

via this Reverb listing

CLICK FOR MORE »

Red Studio Electronics Analog SE-1X SN 4076

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

via this eBay listing

CLICK FOR MORE »

MTI Auto Orchestra Vintage Drum Machine with Synth Bass, Footpedals and Strings

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

via this eBay listing

"Have a chance at this amazing, vintage fully-analog groove box. It's got three parts, a CR-78 style Drum Machine with 20 patterns and 9 muteable drum parts. It's got a acid-tastic synth-bass section. A sweet Strings section and a auto-Chord section.

It comes with it's original Volume pedal and Footpedal keyboard controller as well. Works and sounds great, it's a machine that simply brings out your creativity. There's plenty of youtube videos around of them and I think it's a great purchase for a synth-geek or a guitarist looking for that vintage sound."

CLICK FOR MORE »

Moog Matriarch, Super Gemini & OB-6 - cinematic synth performance

video upload by Devin Belanger

"Semi-improvised synthesizer jam on the Moog Matriarch (bass sequence), UDO Super Gemini (poly aftertouch Vangelis brass & arp) & Sequential OB-6 (pads). I absolutely love these 3 synths for in the moment inspiration like this, and have been writing tons of songs with this combo. Here's a little insight into my process of jamming over a simple sequenced progression to find little nuggets of inspiration."