Roland TR-626 with mods

video upload by Ground Grown Circuits

"Some extra knobs on the TR-626.
Top knob controls sound ROM clock (kinda like a bit rate control) lower knob controls the Gate array clock (pitch). Normally the gate array controls the clock on the sound ROM, so separating them allows you to keep the bit rate high while lowering the pitch and not fully bit crushing the sound (unless you want to)"

Supercritical Redshift 6 | Cinematic performance

video upload by Jay Hosking

"Please support my work on Patreon: / jayhosking
A live synthesizer jam performed with the Redshift 6 at the centre. Percussion added afterward in the box.

Fair warning: both Supercritical and MAS Distribution sent along their respective gear (the Redshift 6, and the Solarfaze/Polyphrase, respectively) for free. Take that as you will. Neither of them explicitly asked me to make a video with the gear, although I'm sure that was the point, right? But in both cases, the gear they sent along was a joy to play, which is why they're here.

I ended up really enjoying the Redshift 6. It's ostensibly analog where it counts—6 DCOs and VCFs—but it's also really clean and precise sounding, giving it a digital sheen. That's somewhat less my thing. However, it has a few things to really give it personality: multi-timbrality, up to a different timbre for each of the six voices; a Character parameter which vastly can change the sound of a voice, its filter and mixing and more; a great built-in effects suite (can only run one at a time); three pairs of stereo outputs to run your timbres separately (as here); easy-to-setup macro knobs for live performing using multiple timbres, all from one page; and a built-in sequencer for getting basic ideas onto the table without outside help. In many respects, it feels like an iteration on some of the ideas from the Elektron Analog Four, another synth I really love, only with enough voices to create a pad, arp, and drone at the same time.

Here, I run one timbre, a constant note, into the Vongon Solarfaze, which adds chorus and then drive/saturation. The second timbre, a single-note sequence, runs to the Vongon Polyphrase, adding delay. Both of these pedals impressed me way more than I had expected; there is something extremely performable about the Polyphrase that makes me want to get it on the table again straight away. And then for the third timbre, the pad, I run it direct out from the Redshift 6, using the synth's built-in reverb. I'm pretty picky on reverb these days and I think it sounds awesome.

With the macro knob opening all filters at once (to varying degrees), this live performance got huge. I had originally intended it to be only the synth, but once I heard the final performance, and how much it reminded me of a soundtrack cue, I knew I had to add orchestral percussion. I built the percussion out of modified samples from the Reason Studios loop library.

Altogether, it created an extremely cinematic performance and I'm very happy with the musical results. I was having such a good time with it that I'm excited to get back to the studio today and explore a little more. Thanks for listening.

https://jayhosking.bandcamp.com"

SEQtrak Bass Station Techno-funk!!

video upload by Jeremy Parker

"So I got my own Bass Station 2 now, and I'm enjoying it very much in combination with the Yamaha SEQtrak. I'm running the audio from the Bass Station into the SEQtrak input, so the Yamaha master effects (high pass filter and repeater in my case) can act on the Bass Station and really make everything sound cohesive. I'm 'borrowing' the SEQtrak sampler track (MIDI channel 11) for sequencing the Bass Station MIDI, which leaves my hands free to twist knobs and have some fun. Here's some techno-funk for your listening pleasure... :D Enjoy!"

Oberheim SEM 1977 via 360 System Spectre

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

via this Reverb listing

Pics of the inside below.

"These used to be a somewhat well kept secret, obviously no more. But if you're not familiar with the 360 Systems Spectre, it was a pretty terrible GUITAR synth (slow & choppy tracking) that 360 Systems produced with Oberheim SEMs as the heart of these units.

Sometimes you'll see these listed as being "Converted to full-functioning SEM" but often there's a thing or two that were missed. You have to reconfigure a few jumpers, add a missing coupling capacitor to each envelope generator, add the missing Decay and Sustain controls to the EG on the Amp VCA, replace the input gain resistor for the external input, add shielded wire for the output, change the output impedance resistor and so on. Everything was done to this unit to make it true full-functioning SEM. An original SEM/CPS-1 power supply (recapped) was also installed inside.

I'm also including a 1977 CPS-1 chassis (complete with recapped PSU) with it so if you do find a faceplate, you'll have a complete SEM. My plan was to find or have someone make me an SEM faceplate in the rare black finish. I thought the gray knobs would look killer on the black panel. But tbh, I really liked the portability of the 360 case. Oh well, someone else can enjoy it now. I've used this in my studio for the last 5-6 years. I will miss it but I'm not doing much synth-based music.

-Synth was fully restored 5 years ago with some basic maintenance in the last 2 years

-All electrolytic and tantalum capacitors have been changed

-VCOs & VCF tuned/calibrated

-AC cord was removed from the front and an IEC was added to the rear of the case

-pots and switches were recently cleaned

-Sub OSC ckt. was added (non-invasive, made by Pete's Gear Garage in Sweden, uses 'Guitar' knob in mixer section)

-Each Jack on the bottom row has a function such as Hi & Low outputs, CV & Gate in, Ext. Input, LFO retrig, VCF in and out (for use with modular) and VCF CV.

-I still have the 360 Systems Control board. It was robbed of a few parts but the PSU and the Transpose rotary switch are still on it. If you want it, send me a msg and I'll include it with the sale."

CLICK FOR MORE »

Vekte Beta 1.2.1: Introducing ARP, Drumkit, and more modulations!

video upload by Våld Labs

"Every channel is now a SEQ, a KIT or an ARP, and slots can drive each other. 1.2.1 rewrites the ARP transport so a running clock tracks the host 1:1.

1.2.0
Slot modes: SEQ (generative sequencer), KIT (fixed 12-note kit map), ARP (input-driven, from external MIDI or another slot)
Slot bus: DEST routes one slot into another. A SEQ conducts an ARP, ARPs chain, no host MIDI routing
RTRG restarts the pattern on a press, LATCH keeps the playhead running silently on release
APPROACH and FILL: deterministic in-scale passing notes, drawn on the piano roll
Ratchet rate system, six interpolation laws

CLICK FOR MORE »

Physical control surface for MIDISID : demonstration

video upload by MIDI IN

"When I pitched this recently for pre-orders, I talked about the controls but didn't really demonstrate it, so here I'll use it to dial in some interesting sounds and make a tune.

Control Surface product page:
https://lectronz.com/products/midisid..."

Follow-up to this post.

Some pics and additional details via the Control Surface product page.

"I've long wanted to have the controls for the 3 voices of the SID laid out like this, MiniMoog style. MIDISID can do many things, but you're working with a screen and four buttons/knobs. As people have told me, "no-one likes menu diving".

I'm calling this the physical control surface. It gives accessible physical controls for most if not all of the things that you can do using MIDISID.

Note:

This doens't contain the SIDs or drive them directly. It doesn't include the MIDISID It is a separate control panel.

There's nothing here that you can't do on the MIDISID already but it makes it so much easier to design sounds when you have knobs and swithes in easy reach.

There's nothing here that you can't do already with a configurable MIDI controller of your choice. MIDISID has long had a list of CC numbers.

Communication is one-way. So this won't necessarily reflect changes that you make on the MIDISID itself

With all of that said, it gives you easy access to the filter, waveforms, envelope, pulse width modulation and advanced features like ring modulation, waveform sync, portamento, arpeggiation. Designing sounds has never been easier."

CLICK FOR MORE »

cyma forma ALT / Sound Demo by RPM #synthesizer #modularsynth

video upload by 宮地楽器RPM シンセサイザーコーナー (旧Wurly's!)

"cyma forma ALT is an analog synthesizer designed to produce drone sounds, soundscapes, and complex generative melodies. It features a system that allows you to intuitively control a wide range of sound sources—including five oscillators, white noise, and a microphone—using faders, knobs, light sensors, and a matrix of physical pins.

■RPM (Recording Proshop Miyaji )
A Tokyo-based specialty store for hands-on recording equipment
https://rpm.miyaji.co.jp/"

OUTSIDE THE KNOBS | Make Noise

video upload by MAKEN0ISE

"Exploring a few of the 'hidden' behaviors accessible only by control voltage in New Universal Synthesizer System modules.

Plus a visual score by Sean Mahan, realized by Bobby A!"

http://www.makenoisemusic.com

SINTH 2 - Polska Myśl Techniczna

video upload by muzykujkropkacom

Click CC in the player once it starts for subtitles. Some initial specs and pics follow. Note it appears a desktop version is in the works as well based on the last image below.

Specs:

60 voice polyphony
5 sample oscillators
3GB of waveforms
Noise oscillator
4 Lfo generators
2 Envelopes
18db LPF, BPF, HPF
Motion recording for all the knobs!
FX Dsp
4 oled displays
16 steps polyphonic sequencer
120 potentiometers
9 encoders
36 butons
1920 cells for presets
XLR Symmetrical audio output
Stereo audio input to FX Processor
Solid wood casing
Fatar dynamic keyboard..

https://sinth2.com

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Catalyst Audio MiG VCA

video upload by John Schussler

"This is a followup to the last video on the Catalyst Audio MiG modules. [posted here]

I didn't have the VCA when I did the first one. Then I heard them, and immediately bought the VCA.

So here's just the VCA by itself, and then at the end all three (VCO, VCF, VCA).

Clearly you can't have too many tubes.

0:00 Intro
0:20 Just knobs
3:17 Resonance
4:52 Wavefolder
6:27 Envelope
10:05 Pony VCO controls
13:53 All MiG modules"

MC-303 Groovebox Synthesizer

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

One via this listing, one via this listing

Additional Perfect Circuit listings

Note the 2nd listing has off-axis knobs.

CLICK FOR MORE »

Introducing the Synido TempoKEY K32 Play!

video upload by Musical Miscellany & More

"The folks at @synidotech asked me to help launch their latest MIDI controller, the TempoKey K32. It's unique in that it's not just a MIDI controller but also includes a synth engine. In this video, I take a look at a pre-release model."

DISCOUNT CODE (Europe): SYNIDOK32 | Expires:August 30, 2026
Purchase link (Europe): https://www.synido.com/s/k32

Intro - 0:00
Unboxing & Overview - 1:26
Internal Synth Engine - 3:31
Using the Editor - 5:24
Direct Audio - 6:47
Using with Soft Synth - 8:15
Using the Arpeggiator - 10:08
Additional Features - 11:30
Using with Hardware Synth - 12:45
Final Thoughts - 14:24

And one from 2-Minute Warning:

The Key - 4-Minute Jam (TempoKEY K32 Play + Taiga + DFAM)

video upload by 2-Minute Warning

"This video is a little different for two reasons!

First, it's the first time I'm featuring an instrument kindly provided by a manufacturer. Synido sent me the TempoKEY K32 Play to explore in my own workflow and share my honest impressions.

They didn't ask for a scripted review, so I simply approached it the same way I approach every other instrument on this channel: by making music with it.

Secondly... this is exceptionally a 4-minute jam!

Think of it as two consecutive 2-minute performances before I take a short summer break. 😊

Rather than trying to showcase every feature of the K32 as a MIDI controller (Bluetooth MIDI, battery power, USB/MIDI connectivity, pads, knobs, etc.), I wanted to focus on what intrigued me the most: its built-in General MIDI sound engine.

For this performance, the Hapax sequences the entire setup. The Taiga handles the bass, the DFAM takes care of the analog drums (synchronized by the Hapax), while the K32 Play provides everything else: guitars, strings, bells, plucks, additional drum sounds… and occasionally runs through the Eventide H90 for a bit of extra space and texture.

As always, the musical performance itself was recorded in a single take. Mixing/mastering was done afterwards in Ableton Live, but the performance you hear is exactly as it happened.

A sincere thank you to Synido. Without their message, this musical experiment probably wouldn't have happened."

✅ PLAY THE MOMENT INSPIRATION HITS

Most MIDI keyboards need a computer and software to make a sound. K32 doesn't. Built-in sounds and speakers let you play instantly--couch,classroom, anywhere.

✅ 32 KEYS, MORE ROOM

25 keys feel cramped for chords and melody together. The K32's 32-key layout gives your hands space to play naturally.

✅ WIRELESS, GO ANYWHERE

BLE MIDI + Battery. Create from the couch, backstage, in class, or on a plane.

✅ GROWS WITH YOU

Connect another MIDI controller and use the K32 as a standalone sound module. Compact setup, maximum flexibility.

✅ INSTANT SOUND SWITCHING

Save favorite instruments to the KEY Sound buttons. Jump from piano to synth to bass with one press. No menu-diving.

✅ HANDS-ON CONTROL

8 assignable knobs, 8 drum pads, and a clear OLED display. Adjust, beat, and perform in real time—no mouse needed.

✅ FOR EVERY STAGE OF YOUR JOURNEY

From first beat to live performance, K32 adapts to your workflow. Start simple. Grow into it. Create without limits.

✅ FAST WIRELESS PAIRING

CLICK FOR MORE »

Melbourne Instruments Roto-Control - Haptic Feedback In A MIDI Controller?!

video upload by Andertons Synths, Keys and Tech

"The Melbourne Instruments Roto-Control comes with touch-sensitive motorised knobs, giving you incredible interaction and immersion with your music! Jack takes us through all the features of this awesome MIDI controller!"

⏰ Timestamps ⏰
» 0:00 Intro
» 1:05 Features & Motorised Knobs!
» 1:42 Mix Mode
» 3:20 Haptic Feedback
» 4:26 Mapping Controls & Functions
» 6:35 Primal Tap Plugin
» 10:15 Device Storage & Mapping Plugins
» 11:27 Motion Recording
» 12:42 Distortion & Primal Mapping!
» 14:06 Final Thoughts

Rare Bob Moog autographed Moog MiniMoog Model D w/ Mods

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

via this Reverb listing

"I purchased it brand new in 1981. It is my baby…

In 1984, I had it modified by Boston tech Ron Rivera. Updates included a fourth LFO, individual sync switches for oscs 2 and 3, military Vernier tuning knobs add tuning stability and are 40:1 in Normal mode and 1:1 when pushed, and (the best one) the ability to individually switch the filter envelope to control pitch, filter or both on oscs 2 and 3.

In 1987, while working at Kurzweil in Waltham MA with Bob Moog, I talked him into autographing it for me.

In the mid-90s, synth tech extraordinaire Kevin Lightner (RIP) cleaned it up and put a green light on the main power switch.

In 2020, the amazing Ken Rich totally cleaned it up inside and out.

This instrument comes with a ATA flight case, and I will also include a Kenton Pro Solo Mk II CV to MIDI converter."

CLICK FOR MORE »

Roland Juno 60 Legendary PolySynth WITH Kenton Pro DCB to MIDI Converter 1982

Note: links to listings are affiliate links for which the site may be compensated.
video upload by Seventy Three Records Music Store

via this eBay listing

"Up for sale is a classic Roland Juno 60 Analog Poly Synthesizer. So many hit songs of the 80's and 90's had the Juno 60 legendary tone. Once you play one, you can recall countless sweet pads, strings, brass, basses, and leads. The 60 was simply essential in music production, and still is. There is nothing that comes close to it. Even the Juno 106 can't do exactly what a Juno 60 does. The tone is simply king.

This Juno 60 is in great working order. ALL sliders, buttons, knobs, jacks and keys work as they should. It was fully gone through by my analog synth tech. I also had him install a new battery as well as an easy battery replacement holder.. no more solder batteries : ) He also loaded some wicked cool custom patches. Cosmetics are very very good. There are typical lite scuffs and scratches around and about, but nothing major and these are to be expected for a 30 year old synth. But it really looks fantastic! See all pics for cosmetic details. Comes with the uber necessary Kenton Pro DCB dbc to MIDI converter."

CLICK FOR MORE »

KORG Introduces NTS-4 Compact Performance Mixer Kit for Hardware Setups

Overview video upload by KORG

"The NTS-4 is a compact performance mixer kit designed for modern hardware setups. With six channels (two mono and four stereo), built-in effects, USB-C connectivity, and support for up to 10 audio signals, the NTS-4 makes it easy to bring together volca units, NTS instruments, modular gear, grooveboxes, and desktop synths into one streamlined setup.

In this overview, Fess Grandiose walks through the NTS-4’s flexible channel architecture, Eurorack-compatible mono inputs, dual stereo effects engines, per-channel CUE and MUTE controls, USB-C audio and MIDI connectivity, and the hands-on Nu:Tekt DIY assembly experience.

Features:
• Compact 6-channel performance mixer
• 2 mono + 4 stereo 3.5 mm channels
• Supports up to 10 audio signals
• Eurorack-compatible mono inputs
• Standard 1/4" main outputs
• Per-channel CUE, MUTE, and FX send
• Dual stereo effects engines
• SEND FX + TOTAL FX processing
• Stereo send/return loop
• USB-C audio + MIDI
• Record directly to computers & mobile devices
• Rugged steel chassis
• Nu:Tekt DIY kit assembly

Learn more about the NTS-4: https://bit.ly/4w0QxLQ"

And a user video from supporting member Knobs & Switches:

KORG NTS-4 Performance Mixer Kit
video upload by Knobs & Switches

"Here is my review about the new Korg NTS-4 Performance Mixer Kit together with loads of other Korg gear: MS20m, Drumlogue, SQ-1, 700Sm, Harmonic Distortion, Opsix, Sigma, Minipops-7, ISE-NIN Single Voice, Ryk M185 Sequencer and of course the NTS-4. The Nu:Tekt Mixer will be released today! Have fun

https://www.korg.com/de/

For Pedal Power i used the MyVolts CrazyChain MkII: https://myvolts.com/CrazyChainMKII/?a...

The fancy Audio Cables are the MyVolts Candycords: https://myvolts.com/CandyCords/?a=kas

CV and Clock Cables are MyVolts Halos: https://myvolts.de/Halo/?a=kas

00:00:00 Intro
00:00:037 Title Track (only the NTS-4’s FX were used)
00:03:04 Epilogue
00:04:41 NTS-4 Run Down
00:08:58 NTS-4 Send FX
00:14:56 NTS-4 Send/Return
00:15:58 NTS-4 Total FX
00:21:19 Conclusion
00:22:47 Outro (only the NTS-4’s FX were used)

Used Equipment: Apple iPhone 14 Pro Max, Apple iPhone 12, Sony ZV-1, Rode Wireless ME, Universal Audio Apollo Twin Solo, Yamaha MG-06, Steinberg Cubase 15 and Final Cut Pro X"



A compact performance mixer for modern hardware setups

Build the perfect bridge for your music. The NTS-4 brings the flexibility of the Nu:Tekt series to a compact performance mixer kit designed for today’s hardware setups. With six channels (two mono and four stereo minijacks), built-in effects, and USB connectivity, the NTS-4 makes it easy to mix and perform with volca units, NTS instruments, modular gear, and other desktop synths in one place, supporting up to 10 audio signals in a single setup.

From the integrated effects to the steel chassis, every part of the NTS-4 is designed to turn your collection of instruments and gadgets into a professional-grade creative hub.

Small Footprint. Massive Control.

CLICK FOR MORE »

Arena Digitalis

video upload by Sid Rockett

"🔊 Learn how to build the Arena Digitalis, a high-performance Arduino granular audio processor for real-time glitch, shimmer, and ambient textures.

In this deep dive, we explore the Arena Digitalis—an open-source Arduino audio project designed for experimental musicians and sound designers.
Granular synthesis is often gatekept by expensive hardware like the Mutable Instruments Clouds or Chase Bliss Mood.

The Arena Digitalis brings those "micro-looping" capabilities to the Arduino Nano/Uno platform using the new R4 processor.

⏱️ Chapters:
0:00 – Intro
0:30 – PCBWay Ad
0:45 – Controls
3:20 – Sound demo with Kastle ARP

Thanks to @PCBWay for sponsoring this video! Check out all their services under the following link and get 5$ new user credit.
https://pcbway.com/g/1AhZrq

🔗 Resources & Links:
Get the Code/Schematics: [https://github.com/SidRockett/Arena_D...]

Key Features of Arena Digitalis:
Real-time Granular Processing: Low-latency audio manipulation.
Arduino-Based: Highly customizable and open-source.
Tactile Control: Manual knobs for grain size, spray, and pitch.
Compact Design: Perfect for pedalboards or tabletop synth rigs.

✌️ I’m Sid Rockett, a designer and explorer of experimental synthesizers and custom noise-machines.

From boutique pocket synths to DIY Eurorack builds, this channel is dedicated to pushing the boundaries of compact hardware. Join me as we navigate through industrial soundscapes, deep cinematic reverbs, and the infinite feedback of outer-space delays.

🎛️ You can buy my synths here:
https://sidrockett.bandcamp.com
https://www.tindie.com/stores/sid_roc..."

SHIK S32: Standalone MIDI Processor & 32-Knob Macro Controller

video upload by SHIK

"The SHIK S32 is a standalone MIDI processor and 32-knob macro controller built to turn your setup into a flexible, playable system.

Control hardware synths, software instruments, DAWless setups, modular expansions, or hybrid rigs from one central device. With 32 high-resolution macro knobs, each knob can control up to four MIDI messages at once, or be assigned to parameters inside the S32 itself, including MIDI effects, devices, and LFOs.

At the heart of the S32 is a powerful MIDI processing engine with stackable racks. Build custom MIDI chains using tools like Arpeggiator, Scale Remap, Harmonizer, Turing Machine, Euclidean Sequencer, Polyphonic Envelope, Delay, Randomizer, Filters, Routers, Mergers, and more.

The built-in LFO engine adds movement to your setup, with 16 LFOs that can modulate MIDI messages, device parameters, effect parameters, and even other LFOs. This lets you turn static MIDI control into evolving, expressive performance control.

The S32 is designed for musicians who want deep MIDI control without breaking the flow. Build racks, map macros, route MIDI, add modulation, save setups, and control your gear directly from the hardware.

Pre-orders are now open.

Learn more and order:
https://shik.tech/product/s32

S32 User Manual:
https://s32-manual.shik.tech"

CLICK FOR MORE »

Moog Subsequent 37 Analog Synth w/ Decksaver Cover SN 09835

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

via this Reverb listing

Additional SYNTH CITY Listings

"The Subsequent 37 is a (2-note) paraphonic analog synthesizer that builds upon the award-winning design of the ultra-powerful Sub 37 Tribute Edition. Its control panel is home to 40 knobs and 74 switches, placing a vast array of analog sound-design tools and onboard sequencing options immediately at your command. The Subsequent 37 improves upon its source through the implementation of a number of user-requested sonic and functional enhancements. Each enhancement maintains the magic and character of its predecessor while also providing access to new dimensions of sound and improved playability."

CLICK FOR MORE »

Sequential Circuits Pro-One - Analog Synthesizer - Pro-Serviced w/Restoration

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


via this eBay listing

Additional Analog U.S. Listings

"This one is in excellent cosmetic condition and working 100%. It is ready to be played and needs nothing! This unit has the earlier, "j-wire" keyboard so it is serviceable if needed in the future. Please mail with any questions. Shipping to most countries! The shipping price listed is just an estimate. If it is less, you will be refunded. NOT SOLD AS-IS!

***This is marked as a USA sale, but I will ship to most countries.***

Cosmetically- Nothing is ever mint in my opinion and this one is no exception. There are some imperfections here and there, but overall I think it looks excellent. All knobs have been replaced, it has new wood sides (walnut), and a new "Sequential Circuits" sticker.

Internally- Apart from any repairs, it's been completely disassembled and cleaned, all potentiometers and switches have been cleaned, it has two new octave switches, all electrolytic & tantalum capacitors replaced (including the power supply), the keyboard rebuilt with new bushings, the j-wires & buss-bar have been hand polished, and it has been fully calibrated. *This may be updated!"

CLICK FOR MORE »