Erica Synths Syntrx II Review and Demo // Not just for Bleeps, Fizzes and Ambient Soundscapes

video upload by Starsky Carr

"The Erica Synths Syntrx II is one of the most talked-about synthesizers of recent years — but three years on from its release, is it still worth your money? In this in-depth review and demo, I finally get hands-on with this modern spiritual successor to the legendary EMS VCS3 and EMS Synthi, and I want to bust two big myths: it's NOT as complicated as it looks, and it's NOT just a crazy sci-fi sound effects machine.
🎹 What's covered in this video:

-Syntrx II vs the original EMS VCS3 / EMS Synthi — key similarities and differences
-Syntrx II vs Syntrx I — what changed and why
-The 16x16 digital pin matrix explained simply
-Using the Syntrx II as a standard 3-oscillator monosynth
-The trapezoid (looping) envelope in practice
-All-analog signal path walkthrough
-Onboard 3-channel sequencer, DSP reverb and delay, envelope follower
FM, self-oscillation, noise modulation, and filter techniques
-Sample & hold circuit — how to set it up
-The joystick as an LFO / recording modulation source
-MIDI setup tips (offset fix, CC assignments for X and Y axes)
-Patch saving — what it DOES and DOESN'T save, and why it matters
-Honest pros and cons

🎵 Extended drone demo — 5 minutes of the Syntrx II running a single live patch with the trapezoid looping envelope, FM, noise, filter modulation via joystick, and DSP effects. The full version was over 10 minutes — it really is that good.

💷 Price context: Original EMS Synthis now sell for £24,000+. The Syntrx II comes in under £2,000. If you've ever wanted that Synthi sound without selling a kidney, this might be your answer."

Sounds from Superbooth 2026: Acid Rain splitwave⁠

video upload by Perfect Circuit

Acid Rain at Perfect Circuit

Dual Band Digital Wavefolder

Splitwave is a dual frequency band digital wavefolder based on digital look up tables

- Manual and CV control over crossover split frequency

- Manual and CV control over upper and lower band wavefolder gain

- Selectable wavefolding tables for each band on encoder

- CV over table selection for each band

- True stereo signal path

- Part of the HEX module platform

The perfect synth mixer – Superbooth 2026

video upload by Let's Play Synths

"The Xcelon SL by Boredbrain left me speechless as it does SO much … with 8 channels, compression per channel, 4 stereo sends and returns, side chain and a lot more. Preorder starts May 14th, it will be shipping in August and it costs $ 1799 or 1899 € (iiicl. VAT)."

Xcelon SL

DYNAMIC ANALOG MIX PERFORMER

Fully analog signal path using pro-grade circuit architectures

Eight stereo channels featuring dual-mode optimized controls

Integrated sidechain offering frequency, threshold, and decay control

Assignable DJ-style performance filter with dual resonance controls

Two additional mix busses, each with stereo insert paths

Two stereo FX sends and sidechain-responsive stereo returns

Balanced master outputs plus independent stereo recording output

Cue monitoring system with high-powered headphone output

Dedicated microphone input assignable to Channel 8

Stereo auxiliary input for external sources

Ergonomic layout in an ultra-compact, portable form factor

CLICK FOR MORE »

Redshift 6 DCO First Look — Supercritical’s Wild New Analog DCO feature

video upload by FutureMusic.es

"Recorded at Superbooth Berlin 2026, this video takes a closer look at the Supercritical Redshift 6, one of the most original analog synth designs on the show floor. The Redshift 6 is a six-voice desktop synthesizer built around Supercritical’s Demon Core technology, with each voice using a digitally controlled analog oscillator architecture that can generate up to 16 simultaneous analog oscillators per voice.

What makes this instrument stand out is Supercritical’s MDCO concept, or Multiperiod Digitally Controlled Oscillator, which goes beyond the usual idea of a classic DCO by allowing multiple analog waves with pitch and phase control from a single analog oscillator core. In practice, that gives the Redshift 6 a huge sonic range, from vintage-style poly textures and wide supersaw stacks to flanging, phase-based movement, and dense unison sounds across a fully analog dry signal path.

In this Superbooth 2026 video, we explore the synth’s sound, interface, and performance potential, while talking through the features that make it one of the most forward-thinking hybrid-controlled analog instruments available today. With six voices, an analog 4-pole multimode filter, and a design that can evolve through firmware-based engine expansion, the Redshift 6 is aimed at producers and sound designers who want a modern polysynth with a distinctive technical identity.

If you are into advanced synthesis, bold analog tone, and new approaches to oscillator design, this is one of the most interesting synthesizers to watch from Superbooth Berlin 2026."

BUCHLA Ziggy Sound DEMO & Walkthrough — Superbooth 2026

video upload by Hispasonic

"At Superbooth 2026, Buchla unveils Ziggy: their most portable and accessible analog desktop synthesizer to date. Filmed at the Buchla booth in Berlin, this video walks through the instrument's main features and includes a full sound demo.

Ziggy distills the DNA of classic Buchla instruments into a compact, immediately playable format: complex oscillator, modulation oscillator, Cycler (envelope + pulser, à la 208c), lowpass gate and a stereo digital effects section with a brand-new ping pong delay. All modulation routing — normally done with patch cables on a Buchla — is handled through flexible assignments from the panel and the oscilloscope screen.

KEY FEATURES
Fully analog signal path + digital stereo effects True analog bypass (voltage divider) when dry is at zero "Programs" designed as a starting point, not as closed presets Fader quantization to scales (pentatonic minor, etc.) Oscilloscope screen doubles as the programming and mod-assignment display

CONNECTIVITY
USB-C (power + MIDI) plus a second USB-C dedicated to power 3.5 mm TRS Type A MIDI and 5-pin DIN MIDI
Eurorack patch points: gate, modulation, pressure and 1V/oct
Aux audio input and stereo outputs

PRICE AND AVAILABILITY
$999 street price. Available for pre-order, first units expected late summer / early fall 2026"

Buchla Ziggy - SuperBooth 26 - Stromkult

video upload by Stromkult

"Ziggy is more than just another mono synth; it's a direct route into the experimental "weirdness" of Don Buchla and early electronic music. It brings those classic concepts into a standalone format, complete with preset saving, an online editor, and FX, MIDI, USB, and CV."

0:00 Introduction
0:20 Sound demo 1
0:45 Whats Ziggy?
1:10 Sound demo 2
1:33 Signal Path
2:09 Sound 3emo 3
2:19 Connectivity
3:23 Sound demo 4
3:30 How to use it?
3:47 Sound demo 5
4:37 No Patchpoints?
5:08 Shipping / Preoder

UDO DMNO

video upload by Infested Alien

"And finally it arrived!
A masterpiece of a special poly synth (dual module) :-)
I seriously cannot stop play the UDO synths they are just so fun and special.

These sounds are custom made and no external FX being used, not even compression just to give you a more honest point of view of this machine.
Since this is a crazy machine when it comes to signal path flexibility then patches will jump in volume from patch to patch :-)

This synth will easily push out some of my other synths with all it's right of being an engineering-art literally.

Thank you UDO team for making ground breaking machines and above all keeping your production in UK and the outstanding high quality!"

The Queen’s Court is Coming to SUPERBOOTH

via Shakmat:

"Superbooth is around the corner and I’m happy to finally unveil the prototype we’re going to show this year.

The Queen’s Court is a new kind of stereo matrix mixer, combining a fully analog signal path with deep digital control — and removing the need for external modulation. Designed for performance as much as for studio work, it brings hands-on control, internal modulation, and preset morphing into a single, cohesive instrument.

At its core, The Queen’s Court offers 4 stereo inputs (configurable as stereo or dual mono), 3 auxiliary stereo inputs, and 4 stereo outputs — all freely routable within a flexible matrix and it embeds modulation directly into the routing structure.

The Queen’s Court integrates 36 internal modulators directly into the matrix.

Per-input panning with LFO-based autopanning
Per-routing-point bipolar envelopes, triggerable via CV or extracted from audio signals
Integrated LFOs on each routing point, with sine and random waveforms, clock-syncable
This enables advanced behaviors such as internal sidechaining, dynamic routing, and animated spatial movement — without relying on external modules.

Designed with an open-ended philosophy, The Queen’s Court can function as:

a self-contained matrix mixer
a performance mixer
a feedback processor
a routing hub for audio and CV
Oh and the system can also be expanded with up to two expanders, increasing the total to:
8 stereo inputs
5 auxiliary stereo inputs
4 outputs
8 CV inputs"

Additional details:

CLICK FOR MORE »

Befaco Introduces Iroi Stereo Effects Processor Eurorack Module

video upload by Befacosynth

"A Shortcut for Atmospheric Processing
Iroi is a compact, 18 HP stereo effects powerhouse designed to turn any external signal into a deep, evolving soundscape. It inherits the sophisticated processing chain of its predecessor, Oneiroi. Combines a unique signal chain composed of a multimode filter, a VCA, a unique character resonator, a versatile delay, and an experimental Reverb. The filter - VCA act like a block that can be placed at any point on the signal chain"

Atmospheric FX Processing in Eurorack // IROI from BEFACO

video upload by DivKid and Befacosynth

"Here's Iroi from Befaco, which is the right hand side of Oneiroi standing alone at 18HP as a stereo atmospheric sound FX processor for Eurorack. There's improvements made and more processing headroom with Iroi and it offers stereo multimode filter, 3 band resonator, 2 tape delay and ambience reverb and reverse FX. Lots of CV, on board modulation and randomisation."

Press release follows:

"BEFACO's NEW MODULE: IROI

The Oneiroi, in Greek mythology, were dark-winged spirits of the night who emerged to bring dreams and nightmares to mortals. Our ambient synthesizer, Oneiroi, takes its name from them, evoking that shifting, dreamlike realm of sound.

​IROI is derived from 'Oneiroi' and carries that same essence forward, distilling it into something more compact and open to external signals, while preserving its cinematic feel that connects us to the world of dreams and the unknown.

What is IROI?

IROI is a stereo effects module based on the right half of the original Oneiroi. It applies Oneiroi’s sonic character to external sources in a more compact format, while incorporating subtle improvements developed throughout the Oneiroi project. Designed to shape, transform, and immerse sound, Iroi carries forward the dreamlike essence of its predecessor into a dedicated effects processor.

Audio Core: Powered by OWL mk3, featuring 24-bit 48 kHz stereo audio resolution (with 32-bit internal processing) and a full stereo signal path.

Filter: Multimode filter offering low-pass, band-pass, high-pass, and comb filtering, with flexible positioning within the effects chain.

Digital VCA.

Resonator: Three-band resonator with dedicated tune and feedback controls.

Delay: Two-tap echo (delay) with adjustable time and density.

Reverb: Comprehensive reverb effect with macro control over size, filtering, and direction.

Modulation: Various types of self-modulation, offering configurable routing and control over level and speed.

Control Voltage (CV): CV inputs for all primary parameters. Four of these inputs are dynamically assignable to secondary parameters.

Synchronization: External sync input supports clock speeds from 30 BPM to 300 BPM.

Randomization: Powerful randomizer with a flexible mapping system, including undo/redo functionality.

IROI is set to be released on April 30th, 2026 and the launching price will be 275€ (assembled version) and 210€ (DIY Kit).

Find us at Superbooth 2026, in BoothZ180 to see IROI live and take a peek at our upcoming products, we're pretty sure you'll love them."

AnalogFX Larynx Keyboard Synthesizer Incoming

via AnalogFX

Priced at €1.032,23 €929,00

"This item will be released 2026-09-01.

Larynx is a monophonic semi-modular analog performance synthesizer with a 37-key aftertouch keyboard, MPE support, and a unique triple-filter architecture inspired by the legendary Synton Syrinx. Designed for expressive sound design, Eurorack integration, and hands-on performance.

Limited First Batch – 50 Units Only

Shipping from September
Includes 10% early adopter discount

Inspired by a Rare Voice

Built on the foundation of the SER-2020, Larynx continues the legacy of the Synton Syrinx—an instrument known for its vocal, organic sound.

Reimagined for modern musicians, Larynx combines vintage character with performance-focused control and modular flexibility.

Built to Be Played

37-key keybed with aftertouch
Touch’n’Bend performance control
Real-time modulation across the entire signal path
From subtle pressure to aggressive modulation, Larynx translates touch directly into sound.

Every gesture becomes sound.

Organic. Vocal. Alive.

Oscillators
CEM3340-based VCOs delivering warmth and stability

Filters
Triple CEM3350 architecture enabling vocal, formant-like shaping

Character
From deep bass to expressive, evolving textures

The combination of classic oscillator design and a unique triple-filter structure allows Larynx to move beyond traditional subtractive synthesis—into something more organic, more dynamic, more alive.

Modular Without Limits

CV inputs and outputs
Eurorack compatibility
Flexible routing
Integrate seamlessly with Eurorack or use Larynx as a powerful standalone voice.
A performance instrument that expands into your modular world.

More Than a Synth

Designed for expression, not presets
Inspired by rare, character-rich instruments
Built in limited batches for serious musicians
For Those Who Go Deeper

Larynx is built for musicians who want more than presets — for those who shape sound, perform with intent, and seek an instrument with a voice of its own."

The GS Music Bree 6 Keyboard Synthesizer: Super cute and super fat!!!

video upload by Matt Johnson’s Keyspace

See dealers on the right as well as https://www.gsmusic.com/synth-store for availability and price.

"The Bree 6 will surprise you with its massive sound! I would take this over a vintage Juno anyday!"

Matt Johnson GS Music demos

And one from Starsky Carr:

Analog Done Right // GS Music Bree 6 Keyboard

video upload by Starsky Carr

"In this in-depth demo and review, we explore the GS MUSIC Bree 6 keyboard — a 6-voice VCO-based analog synthesizer with a fully analog signal path, built-in chorus, delay, arpeggiator, and sequencer. If you love that vintage-meets-modern sound, this one might surprise you.

From raw oscillator tones to lush stereo pads and punchy basses, I break down what makes this synth special — including its unique double/triple arpeggiator modes, MPE compatibility, and rich, characterful sound that sits somewhere between classic Roland-style synths and something entirely new.

If you’re into synths like the Roland Jupiter-8 or Roland Juno-106, this is one you’ll want to hear.

🔍 What’s Covered
Sound demo (full track made entirely on the Bree 6)
Oscillator section: saw, pulse, sub oscillator
24dB analog low-pass filter with resonance & key tracking
Dual ADSR envelopes & fast modulation
Voice modes: poly, mono, unison & stereo spread
Built-in chorus & analog-style delay
Unique arpeggiator (double & triple note modes)
Sequencer workflow & performance features
MPE support & expressive control

🎛️ This isn’t just another vintage clone. The Bree 6 blends:

Raw VCO tone with modern reliability
Hands-on workflow (minimal menu diving)
A distinct character that feels alive and immediate
A surprising amount of depth for a single-oscillator synth
🎧 Who Is This For?
Analog synth lovers
Producers looking for fat, mix-ready tones
Fans of classic Roland-style sound with modern features
Anyone wanting a hands-on, inspiring instrument"


via GS Music

The day has arrived

We’re proud to present the Bree6 Keyboard, our first synthesizer with an integrated keyboard, designed and produced in Argentina for the world. 💙

Built on a six-voice analog architecture, it delivers a powerful and expressive sound engine capable of everything from solid basses and leads to rich, evolving pads. Now expanded with a built-in sequencer and advanced arpeggiator, it becomes a complete performance and composition tool.

With its one-knob-per-function interface, semi-weighted keybed with velocity and aftertouch, and fully analog signal path, the Bree6 Keyboard is designed for immediate, hands-on control—no menu diving.
Immediate Control. No Menu Diving.

The Bree6 Keyboard version is designed to deliver an immediate and intuitive hands-on experience, eliminating the need for deep menu navigation. Its interface follows a one-knob-per-function philosophy, providing direct access to all key parameters for fast and precise sound shaping.

CLICK FOR MORE »

Drift DJ Industries Unveils Zero Pocket-Sized Mixing, Playback and Recording Device

video uploads by Drift DJ Industries

Press release follows:


Drift DJ Industries Unveils Zero, a pocket-sized mixing, playback and recording device for djs and electronic musicians

CHICAGO, April 13, 2026. Drift DJ Industries announces Zero, a palm-sized, battery-powered, all-in-one audio mixing, performance and recording system. With its portability and instant-on playability, Zero’s standalone 2-deck DJ system empowers DJs to break outside of the booth and bring their sound to any space. Through it’s DAWless and hybrid DJ-oriented external device sync, audio signal mixing, deep routing configuration and built-in recorder, Zero collapses key functions into a single machine, reducing the amount of hardware required to craft any sound.

Zero: Portable DJ, DAWless, Mixing and Recording

Big-Rig DJ-Features in the Palm of Your Hand

Don’t be fooled by Zero’s small size. Its robust feature set includes DJ-quality time-stretching, dedicated headphone cues, filters and FX for each playback deck. With physical controls organized in a familiar-two channel DJ mixer layout, our device is perfect for DJs who want to forgo larger laptop and controller-based setups while retaining the tactile feedback not found on mobile apps. Leave the cables and power supplies at home. Never get a meeting invite in the middle of a mix.

Compact Machine with DAW-Like Powers
Zero’s wildly-flexible signal routing UI lets users control every link in the signal path. Glue together any collection of music-making gear by routing signals from aux busses and the decks between the analog and USB I/O ports.

For example: Route audio from a Dirtywave M8 and a Roland S-1 into Zero’s analog input ports, and individually trim and EQ each device. Bus those signals together and send/return to a Hologram Chroma Console. Route that signal into the crossfader to mix the effected M8 and S-1 sound with the DJ decks. Add an OXI E-16 and map individual knobs to the M8 and S-1 bus’s post-fader, EQ controls and bi-modal filter cutoff (input control mapping is slated for post-launch release). Record several minutes of knob-tweaking as a .wav file to Zero's internal storage. Re-import that .wav file, add cuepoints and a beatgrid, and loop and layer it in with other inputs and DJ playback.

Built to Evolve
Zero is a new hardware platform and a custom Linux distribution running front-end software from our own publicly-available open source SDK. It ships with the DJ playback, library, external sync, signal routing and recording features, and it includes on-device software management for easy install of future updates. Planned updates include control input mapping, video output for streamers, third-party library support (including rekordbox and Engine DJ) and accessibility features. It fits in a fanny pack, but Zero will develop new capabilities by the truckload.

See our device specs and release roadmap for more info.

Meet Zero in Person
Stop by our exhibitor tables at the following events:
SynthFest France, Nantes, April 17th-19th
Superbooth, Berlin, May 7th-9th

Pricing and Availability
Zero is in presale and priced at $899, with an expected release date of Summer 2026.

CLICK FOR MORE »

Introducing Glou-Glou "Bien Jolie !"

video upload by Glou Glou

Playlist:

1. Glou-Glou "Bien Jolie !"
2. Glou-Glou "Bien Jolie !" Introducing
3. Glou-Glou "Bien Jolie !" - Controlled Randomness
4. Glou-Glou "Bien Jolie !" - Mineapolis Beat
5. Glou-Glou Bien Jolie ! - Sound Only / No Talk by Stazma
6. Explaining and testing Bien Jolie ! by Glou-Glou by Stazma
7. Glou Glou's Bien Jolie! as an insert with Tonverk. So many tones. by keinseier



Details:

9V DC 200mA PSU (not included)

Relay-bypass available via external footswitch (no built-in bypass switch)

Passive expression pedal input for direct performance control of parameters

Analog signal path: Filter → VCA → Output

6-mode rotary switch: Banjo, SuperTri, Audio In, Fuzz, Octave −1, Octave −2

Banjo + SuperTri modes generate sound internally (audio input not used)

Audio In / Fuzz / Octave modes use the audio input with adjustable input Gain

3 analog VCOs (triangle + square outputs, 2 modulation inputs each)

Resonant low-pass filter with PEAK control up to near self-oscillation

Rungler shift-register modulation with patchable inputs: Rung Clock and Rung Data

Semi-modular patch system with default internal routings (overridden by patch cables)

Patch-point signals normalized to ±5V (external CV should not exceed 5V)

Envelope follower outputs from audio input: Envelope + Envelope Invert

Octave down generator from audio input: −1 and −2 (best with monophonic sources)

3 MIDI Squares (clockable square oscillators) sync to incoming MIDI Clock

MIDI Squares also work without MIDI Clock via internal tempo setting, plus Random mode

Optional Desk-Sides for vertical station

Moog Model 10 Demo track. 'A Study in Discrete Voltage'.

video upload by PaulLawlerMusic

"Available to buy :



All sounds were generated using a Moog Model 10 modular synthesizer built around the revered 901 oscillators.

Recorded as a series of overdubs from a single system.
Patched by hand, no presets, no fixed signal path.
The piece evolved through small changes in voltage and routing.
What you hear is the system itself—direct and unrepeatable."

Intellijel Swells - Multi-Model Reverb Module with Swell Generator

video upload by Intellijel

"Swells is a multi-model reverb module, with a built-in modulator we call the 'Swell Generator'.

Some feature highlights of Swells include:
Nine unique studio-grade reverb models
Fully stereo signal path
Eight reverb parameter sliders
Ebb & Flow - two per-model parameters
Swell Generator - aka envelope follower with four modes.
LO-FI with Min & Max setting
Freeze, Reverse and Burst FX
20HP Module"

Intellijel Swells | Four synth explorations

video upload by Jay Hosking

"Four mostly ambient pieces with Intellijel's new reverb and other hardware.

Fair warning: Intellijel sent me the Swells and Jellymix. Take that as you will. Considering how much other Intellijel stuff I use, and considering how much I'm a sucker for reverb, I was excited to try this one out.

00:00 - Omnichord ambient
03:49 - SubH Replay ambient
08:22 - S-4 OVUM ambient
12:35 - Hexdrums jam

Undoubtedly, we're living in a golden era of reverb hardware. I've got more reverb than one human needs, but I love it so much. One thing that means, though, is that I'm looking for reverb that does new things, that isn't just good but different and textural and interesting in and of itself.

In that respect I've been very happy with Swells, and am planning to use it a bunch after this. Swells can play it straight, but the combination of self-generated modulation and great colouration options means Swells can draw attention, add unique character, and fill a role more than simply adding space. I've particularly liked pairing it with Jellymix, using Swells as a send and then using varying amounts of wet/dry across multiple instruments, creating a shared reverb environment that feels pretty glued. It's a great combo.

So do you need another reverb? Probably not. You don't need anything in hardware, honestly. But if you're looking for a hardware reverb that makes you think differently about time-based effects, and if you're looking for a reverb that sounds good in new ways, I think Swells is worth checking out.

Thanks for listening.

https://jayhosking.bandcamp.com"

The Crow Hill Company Introduces the THE SH*T SYNTH

The Sh*t Synth - Walkthrough video upload by CROW HILL XTRAS

Press release follows:


The Crow Hill Company turns to extensive and rare collection to turn out THE SH*T SYNTH as compendium of 48 circuit-, wave- and sample-bent instruments

EDINBURGH, UK: The Crow Hill Company is proud to turn to its own extensive and rare collection of hardware to turn out THE SH*T SYNTH — available as a compendium of 48 circuit-, wave- and sample-bent instruments inspired by some of the Edinburgh-based enterprise’s eclectic musical favourites (spanning the likes of Aphex Twin, Boards Of Canada, Joe Maus, Jon Brion, Laurie Spiegel, Radiohead, Throbbing Gristle, and Yazoo) to create something that they collectively ask: is it just shit or ‘the shit’? — as of April 7…

Whatever way anyone chooses to read into the titling of THE SH*T SYNTH as the latest entry into The Crow Hill’s ongoing ORIGINS series of sample-based virtual instrument plug-ins, one thing is for sure: it readily represents a broad selection of three categories of 16 workhorse instruments each, effectively wrapped up into a single plug-in designed to bring a cohesive approach to making music more edgy, lo-fi, retro, and — swimming against the technological tide of so-called progress — decidedly AI (Artificial Intelligence) slop-free. From pianos to strings, plucks, beeps, bass, and pads, the compendium that is THE SH*T SYNTH has been lovingly sculpted by the Edinburgh-based enterprise’s media composer and ‘samplist-in-residence’ Christian Henson to take the hassle out of making existing sounds less refined, catering to those looking for an entirely new bank of Mellotron-style sounds as well as synths that have been long forgotten — for good reason, too!

CLICK FOR MORE »

Making Rythms from Feedback with the Zakal from Colossus Audio and the Metal Fetishist

video upload by Body Synths

"The "pairing series" is back! In this one we explore the Zakal, a spring reverb / feedback device from Colossus Audio. We start by using the Metal Fetishist as a sound source but quickly flip the tables and use it as a sound processor instead, making Rythms with the feedback tones that come through its input from the Zakal.

The background noise you may hear comes from my microphone, not from the instruments. I will be more careful next time.

https://bodysynths.com/ | https://www.colossusaudio.com/"

"Zakal is a resonant audio feedback instrument. It generates feedback using reverb springs, with the feedback signal shaped by a low-pass filter and a delay in the feedback path or simple feedback. Additionally, Zakal can function as a spring reverb effect, offering versatile sonic possibilities.

Zakal contains amplification and recovery circuits designed to generate audio feedback through its reverb springs.

A switch allows you to engage the LPF and Delay within the feedback path, enabling creative control over the frequencies fed back into the spring reverb, shaping unique resonant textures.

When used as a spring reverb effects unit, the POST EQ provides precise shaping of the wet signal, offering enhanced tonal flexibility.

At the end of the chain, a 3-band EQ provides additional shaping of the output, offering precise control over the final sound. When used as a spring reverb effects unit, the EQ enhances the wet signal for even greater tonal versatility.

ZAKAL does not include a power supply. It operates on a standard 9V DC (negative center, 2.1mm barrel plug) compatible with most guitar pedal power supplies. If you do not own one feel free to reach out, and I’ll help you find a suitable option."

Genki KATLA - THE VOLCANO SYNTH!! Now Available

video upload by Starsky Carr

"What happens when a synthesizer completely breaks the rules?
In this video, we explore the Genki KATLA — a truly unique polysynth inspired by Icelandic volcanoes, featuring a rotating voice architecture, hybrid signal path, and some of the most unpredictable sound design possibilities I’ve come across.

This isn’t your typical analog polysynth. Each of the five voices can run independently with different waveforms, octaves, and modulation — creating evolving textures, harmonic movement, and generative-style sounds that feel closer to modular synthesis than traditional keyboards.

🎛️ What makes the KATLA special?
• Rotating voice polyphony (round robin-style synthesis)
• Independent per-voice oscillators & tuning
• Digital oscillators + analog filter signal path
• Looping envelopes reaching audio-rate modulation
• Phase distortion, wavefolding & multiple distortion types
• Tape-style wow, flutter & pitch instability effects
• Stereo voice movement & evolving spatial modulation
• External inputs for processing other gear

From lush ambient pads to aggressive, evolving sequences — this synth can go places most instruments simply can’t. It’s not about recreating vintage sounds… it’s about discovering entirely new ones.

💸 At around €5000, this is definitely not a beginner synth — but for sound designers, and anyone looking for something truly different, it well worth a look."

Genki Katla Sound Design: Making sounds from scratch and exploring
video upload by MR TUNA Music

Chapters: 0:00 - Intro 0:16 - Init patch 0:44 - Filter sounds 1:26 - Raising 1 voice 1:43 - Creating a basic pluck sound 2:24 - Aftertouch controls 2:45 - Bring in a little reverb 2:56 - LFO to filter cutoff 3:16 - LFO to reverb mix 3:46 - Keyboard cutoff 4:00 - Osc 3 Square wave 4:23 - Sub oscillator 4:54 - KATLA parameters 5:01 - Rústir wavefolder 6:08 - Rökkur stereospreader 6:37 - Skriða envelope randomizer 7:27 - Aska random modulations 7:57 - Glóð tape stops and flutters 8:35 - Skjálfti ??? 9:14 - Kvika slow tape modulations 9:38 - dark pads 10:20 - Móða voice detuning 11:20 - Katla sounds with aftertouch 13:28 - Thanks for watching

"Hey guys! Very very excited to be presenting the Genki Katla to you all... I am truly in awe of the sound of this very unique and powerful instrument.

I thought the best way to get to know the synth is to start from scratch so in this video we'll go full hands-on with the Genki Katla, exploring (almost) every parameter and building sounds from an initialized patch.

From some raw drone layers and gritty textures to evolving pads, rhythmic sequences, and atmospheric beds, we will see just what this instrument can do, discover new sounds, and maybe make some friends along the way 🙏

If you're into sound design, unique synths, or just love discovering new instruments, this one is for you!

HUGE thanks to Genki for letting me a part of this with them and showing off this super cool synth.

No money was paid, no agreements were made... these are my real thoughts on this very premium synthesizer and I will be sharing lots more."

Press release follows:


Genki Instruments announces availability of Katla as Voice Rotating Polyphonic Synthesizer inspired by its natural namesake

REYKJAVIK, ICELAND: having twice blown European musical minds thanks to show-stealing showcases at SUPERBOOTH25, May 8-10, Berlin, Germany and Machina Bristronica 2025, September 27-28, Bristol, UK, before adventuring across the pond for a repeat performance at Buchla & Friends 2026, January 24-25, LA, CA, USA, Reykjavik-based instrument developer Genki Instruments is proud to announce availability of the eagerly-awaited Katla as a Voice Rotating Polyphonic Synthesizer inspired by Iceland’s largest subglacial volcano as its natural namesake — readily representing the company’s first foray into analogue synthesis, albeit one that uniquely utilises a set of wildcard parameters to infuse it with organic, unpredictable behaviour as an instrument that is worthy of that legacy, excelling at generating rich, evolving, multi-layered textures, where each note stirs, swells, and erupts in its own distinct way — as of March 31…

Clearly Katla’s inspiration runs through its ‘volcanic’ veins. After all, it is framed by side panels and knobs forged from authentic Icelandic lava, giving each instrument a tangible connection to the volcanic forces that inspired it. That this synth should surely roar is a given. Genki Instruments inevitably chose, therefore, to kit Katla out with four independent distortion destinations, the most unruly of which is a stereo CMOS (Complementary Metal Oxide Semiconductor) Drive effect — a characterful saturation stage, pushing tones from warm and rounded to fractured and snarling.

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Exploring unique FX with synthesisers, modular & more // TRAILS from Poly Effects [PEDALS & PATCHES]

video upload by DivKid

"Join us for an exploration of TRAILS as part of our Pedals & Patches series of videos, exploring pedal FX with modular gear, synthesizers, around the studio and with some other instruments too. Pedals aren't just for guitarists, so lets get creative with them!

Trails offers 7 FX that make your sounds sustain and grow, there's resonators (think Rings) with sympathetic strings, bell like chord generation, live and frozen buffer granular processing, a unique distortion like nothing I've used before, micro loopers, pitch shifting delays, vinyl record emulating delays and more!"

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SEQUENTIAL TRIGON-6 POLYPHONIC ANALOGUE SYNTH (DESKTOP)

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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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