Introducing Pip Filter & Pip LFO by ALM

video upload by ALM TV

"The 'Pip Filter' is a compact 4HP voltage controlled 2 pole low-pass filter with resonance and built in VCA. Here we take a look at all the features of the module.

The filter cutoff is controlled via both knob control and dual CV inputs with a built in attenuverter. Resonance is manually controlled and will reach into self oscillation with rough V/Oct tracking. A trigger input allows the filter to be pinged for percussive plucked type sounds. Finally, a built in VCA (normalled open) allows for additional independent amplitude control of the filtered signal.

The “Pip Filter’ provides a classic lowpass filter sound in a small form factor with many useful features for sound sculpting."

Introducing Pip LFO

video upload by ALM TV

"The 'Pip LFO' is a compact 4HP all analogue low frequency oscillator with a wide frequency range, voltage control, numerous outputs, reset input and a VCO mode. Here we take a look at all the features of the module.

The frequency of the Pip LFO is set via a manual control and voltage control input. The module features a unipolar square wave output along with both bipolar and uni-polar triangle, saw and sine waveform outputs. When VCO mode is activated, the frequency jumps to audio range and will track V/Oct for approx 5 octaves. A reset input allows the LFO waveform cycle to be reset and produces hard sync functionality in VCO mode.

The Pip LFO’s compact design makes it easy to add a modulation source and an analogue voice into any system."

Crossing the threshold: New Systems Instruments’ “discrete map”

video upload by Electrum Modular

"New Systems Instruments sent me their new module, Discrete Map. It’s a deep module, with lots of potential uses, so I’ll be dedicating the next few videos to it. This first, introductory video uses it as a generative sequencer, extracting an evolving melody from a Lorenz chaos trajectory."

"Novum! New Systems Instruments has created a unique and innovative approach to generating sequences with Discrete Map.

New Systems Instruments consistently surprises with innovative designs! Discrete Map fits right in, taking a simple concept and turning it on its head. At its core, it’s an 8-step sequencer that can output a traditional step-by-step sequence. The pitch values are set using the eight upper faders, but what makes it truly special are the eight lower faders, which determine which step is played at any given moment.

The sequencer’s X input accepts any signal, a clock, an LFO, or even another sequence. The lower faders set threshold values, and the switches below them define whether they react to a rising or falling edge. This means the sequence jumps to different steps based on the incoming signal, creating a highly controllable form of randomness! The results are striking! Complex rhythms and surprising melodies that become even more dynamic when paired with the expander for voltage-controlled step selection.

Discrete Map also includes an onboard oscillator. A switch toggles between a slow and fast frequency range. When slow, it functions as a standard step sequencer. Another switch changes from Position mode (explained above) to Length mode, where the lower faders control step duration. When switched to the fast mode tho, it becomes a graphic oscillator that tracks V/Oct.

To round out the package, Discrete Map includes additional utilities for better integration with other modules. The precision adder for example allows an external voltage to transpose the entire sequence.

The A/B/C Expander further enhances functionality, adding three assignable groups for the steps. Each group gains CV-controllable threshold values and dedicated gate outputs for active steps. And because that´s not enough there's also a sequential switch. Several discrete maps and A/B/C expanders can be linked together!

Overall, an incredibly well-thought-out and entirely fresh approach to sequence generation!

Features:

8-step sequencer for a single track
Generates sequences based on any input signal
8 lower faders to position steps in time
8 upper faders to set step values
One-shot mode
Oscillator mode with V/Oct tracking
Adjustable output voltage range (-5V to 5V / 0V to 5V / 0V to 2.5V)
Precision adder for transposing sequences
Gate output
Ramp output for internal clock signal"

And an overview from DivKid:

Bend & Twist Time with Voltage Addressed Sequencing // Discrete Map from New Systems Instruments
video upload by DivKid

"Here’s the new Discrete Map and expander from New Systems Instruments. Deeply routed in influence from the Buchla MARF & a Serge Modular style approach to sequencing, coupled with a heady mix of physics and electronics (as New Systems Instruments do so well) the Discrete Map allows you to use voltages to bend and manipulate a time map across 8 stages of voltages. From basic to more advanced sequencing, unique time and rhythm creation to some bonkers graphic VCO applications there’s a lot we get into in the video."

Friendly Stories about Computers / Synthesizers John Simonton Jr., PAIA

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

via this eBay listing

"Friendly Stories about Computers / Synthesizers - by John Simonton, Jr. PAiA Electronics founder. Subtitled: WHY Microprocessors are the greatest thing to happen to electronic music since voltage control and HOW to apply them. 72 pages of articles from Polyphony Magazine. Mainly deals with their 4700 series computer interface. Has a lot of 6502 assembly language listings. This is a great walk down memory lane of the very early days of microcomputer controlled synthesizers.

FREE bonus - 1989 PAiA 12 page catalog - MIDI SMPL Modules, Studio Equipment, Guitar Effects. Books Kits and More."

CLICK FOR MORE »

ARP 2500

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

via this Reverb listing

This appears to be the one previously listed on eBay featured here.

This new listing features additional pics and a new description including a list of the modules.

CLICK FOR MORE »

EML ElectroComp 101 – Vintage Duophonic Semi-Modular Synthesizer

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

via this Reverb listing, also on eBay

"A rare and revered classic, the ElectroComp 101 was Electronic Music Laboratories’ evolution of the original ElectroComp 100—crafted by the Connecticut-based company known for its educational and experimental instruments. Released as a flexible alternative to the ARP 2600 and Minimoog, the EML-101 brought serious innovation to semi-modular design.

Unlike its contemporaries, the 101 featured four voltage-controlled oscillators—two of which operate sub-sonically for LFO duties—with morphable waveforms accessible via rotary selectors. It’s duophonic, allowing up to two-note polyphony, and provides a unique modulation architecture where control voltage and audio signals are treated interchangeably, offering highly creative patching possibilities.

A 12dB/oct multimode filter (low-pass, band-pass, and high-pass) with resonance adds tonal versatility, and the onboard ring/amplitude modulation, sample-and-hold (“Sampler”), and dual envelope generators give the 101 deep sound-shaping power. Thanks to its use of op-amps instead of temperature-sensitive transistors, the 101 also boasts impressive tuning stability compared to Moog or ARP synths of the era.

Designed with portability in mind, the unit folds neatly into its own wooden case, making it ideal for studio or stage use.

Originally marketed to universities and educational institutions, the EML-101’s modular flexibility, rich analog tone, and rock-solid build quickly caught the attention of professional musicians and sound designers, cementing its place as one of the most powerful portable synthesizers of the 1970s.

Features:

Polyphony: Duophonic

Oscillators: 4 VCOs (2 with sub-audio range; variable waveforms + noise)

Filter: Multimode 12dB/oct filter (low-pass, band-pass, high-pass) with resonance

Envelopes: 2 ADS generators

Effects: Ring/Amplitude Modulator, Sample-and-Hold

Modulation: Any CV or audio signal can be patched freely

Keyboard: 44-note

Control: CV/Gate compatible

A previously used item that shows signs of cosmetic wear but is fully operational and functions as intended—a vintage gem ready to inspire."

CLICK FOR MORE »

Behind The Drums Ep 15 - Flashdance "Maniac" - Michael Sembello Linndrum

video upload by Controlled Voltage Sound Labs

"An in depth look at the making of Michael Sembello's number one hit 'Maniac,' from the Flashdance movie soundtrack. Video includes a re-cretion of the drum beat using a Linndrum."

Drum Processing
Kick - Teletronix LA-2A (No Reverb)
Snare + Tamb - Teletronix LA-2A + Lexicon 224 (Plate Setting)
Cowbell - Teletronix LA-2A (No Reverb)
Clap - AMS Reverb (Non Lin Short decay)
Stick - Teletronix LA-2A (No Reverb)
Hat - Teletronix LA-2A + Lexicon 224 (Room Setting)

Waldorf Pulse & Pulse 2 - Don Solaris Soundset

video upload by Don Solaris

"Available at: https://www.donsolaris.com/?page_id=3633

Why DCOs? Unlike traditional VCOs (voltage-controlled oscillators), DCOs maintain consistent pitch and phase – which may sound like a subtle difference, but in practice, it’s key to achieving harder, tighter, and more aggressive bass. DCO-based synths like the Pulse don’t drift or smear. They hit with precision, punch, and presence, which is especially crucial when you want bass that stays locked in with your drums and doesn’t fall apart under compression or saturation."

RF dawless jam 147bpm

video upload by Radical Frequencies Modular

"Patch: Bass is the Dpvco mixing the alpha square with beta saw slightly detuned into the RF transistor mixer and into SH Vcf. The decay of the envelope filter is voltage controlled by Lucky Voltages giving a bit more groove.
The lead is a simple saw into the Diode Dream Vcf which can make internal fm from Vcf input to the filter cv frequency. This resonance sounds so bubbly and glassy with beautiful mid high frequencies!
All drums are from different sources mostly analog mixing into a vintage 70s mixer. The jam is directly recorded into daw. Sequencing is done with Beatsteppro."

Korg MS-04 Modulation Pedal

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

via this eBay listing

Pics of the inside below.

"For sale we have the very rare Korg MS-04!

These don’t come up for sale very often.

This is a modulation expression pedal.

It features an LFO (Triangle or Square), a noise generator, and a "bender" type control voltage output, controlled by this sturdy foot switch.

The pedal controls the magnitude of the CV output of the LFO, not the frequency of the LFO.

There is an upward facing LED on the pedal body that shows you the speed of the LFO.

This is in honest to goodness as new condition. The internal date stamp indicated manufacture to be the 6th week of 1980 (which matches the manufacturing period).

There is some light dust on the pedal after being in storage for 20 years, and I haven't cleaned it off. The only blemish is on the front plate indicating model number, where a price tag was placed in the late 1990s when it was purchased by the current owner. I haven't attempted to de-goo it.

One side appears to still have the original protective plastic on it.

All components are original! The tested capacitors have held their values, and the pots were all clean. It has been stored with no batteries inside, and the battery bay, as you can see, is clean as a whistle."

CLICK FOR MORE »

New GRP A10 Flagship Synthesizer Incoming

These in via John L Rice.

Left: front panel layout.

Below: PDF with full details. Click on each pic to zoom in.

Update: "The Grp A10 will cost €10,000* plus VAT and will be available at the end of 2026."

CLICK FOR MORE »

Behind The Drums Ep 14 - Tom Petty "Don't Come Around Here No More" Oberheim DMX

video upload by Controlled Voltage Sound Labs

"An in depth look at the making of Tom Petty's "Don't Come Around Here No More." Video includes a re-creation of the drum beat using an Oberheim DMX drum machine.

Join us on Patreon! - / cvsoundlabs
INSTAGRAM - @CVSoundLabs

Drum Processing...
Kick - Teletronix LA-2A + Lexicon 224
Snare - Teletronix LA-2A + AMS Reverb
Hat + Cabasa - Teletronix LA-2A + Lexicon 224
Toms - Teletronix LA-2A + AMS DMX Delay + AMS Reverb"

Buchla 219 excerpts

video upload by Todd Barton

"A little compilation of demos I've been posting on my Instagram of this amazing and deeply versatile and inspiring Buchla controller:
219 Compound Touch Controlled Voltage Source.
From: https://sourceofuncertainty.com/"

Buchla 219 first touch

video upload by Todd Barton

"Wow! This is a game changer for sure: The Buchla 219 Compound Touch Controlled Voltage Source. Now my big Buchla system can spin on a dime.
This is a super simple patch -- can't wait to take the deep dive!"

Sounds from Superbooth 2025: WMD Skorpion

video upload by Perfect Circuit

"We're on the ground in Berlin at the year's biggest synth event. Stay up to date with all the latest gear news, announcements, and preorder info on our Superbooth coverage hub."

WMD's Skorpion is a next-generation analog wavefolder module that redefines how timbre can be manipulated and modulated in the modular environment. Featuring eight cascading fold stages controlled by a powerful vector core, Skorpion introduces a dynamic system of thresholds and voltage targets, allowing users to morph basic waveforms into harmonically rich, evolving shapes. Its hands-on slider interface offers intuitive control over folding behavior, modulation depths, and macro animation, while the hybrid analog-digital architecture ensures both sonic depth and interface precision. Whether you're after subtle saturation or full-spectrum harmonic chaos, Skorpion provides a versatile platform for creative signal transformation.

Beyond its core wavefolding capabilities, Skorpion offers a wide array of modulation tools including a dedicated macro envelope, internal LFOs, CV routing, and stereo widening functions. Unique features like target Order, Sync modes, and symmetrical/asymmetrical modulation application give users the power to craft entirely original textures with fine-tuned control. Designed to be both exploratory and exacting, Skorpion delivers a deep synthesis experience for sound designers, live performers, and modular enthusiasts alike.

SKORPION FEATURES
8-stage analog wavefolder with threshold and target voltage control
Hands-on slider interface with macro animation and modulation layers
Internal modulation sources: macro envelope, threshold LFOs, CV modulators
SYNC and TARGET ORDER modes for advanced waveform manipulation
Stereo WIDE output with second vector core and delay-based processing
Hybrid analog-digital design using high-speed CMOS circuitry
Extensive CV I/O including rectified, differential, and gate outputs

New OCTOLFO, Multipass, & Resonator Eurorack Modules From Tiptop Audio

Also see Buchla & Tiptop Audio 248t and 230t Incoming for new details. As always, check with dealers on the right for availability.

Details on the OCTOLFO, Multipass, & Resonator follow.

OCTOLFO – Eight-Voice Voltage-Controlled LFOs

For all Eurorack users, here comes your mega LFO. And for those of you who have already joined us on our journey into polyphonic patching heaven, this is the one you've been waiting for. The Octolfo consists of eight fully independent LFOs with plenty of controls, lots of waveforms, and the ability to load your own waveshapes. Clock-sync it or let it free-run. Use one-shot cycles of waveforms to create unique envelopes, and reset LFO cycles from your notes. All eight LFOs are available simultaneously on regular jacks and Polytip jacks—both outputs and CV control inputs. CV is mappable to parameters, and the entire setup can be saved as a “preset.” This module brings polyphonic modulation into our new world of polyphonic patching.

Multipass – Eight-Voice Multimode Filter

Please welcome the second filter in our polyphonic series: the Multipass. This one carefully recreates the rare OB-X filter design (not the later CEM-based OB-Xa), delivering the sound of the ’80s and early techno.

It features extended signal levels on inputs and outputs for an even broader tone range. LP, BP, and HP modes are poly-voltage controlled and simultaneously available per voice through Polytip, and via a mixed output jack. Each filter mode has manual gain control via dedicated faders. Frequency control is polyphonic and can be over-modulated by a mono signal with adjustable scaling. With all its poly mod inputs, this filter goes far beyond its classic roots.

Where and how much?

The first batch is ready, and we expect to begin shipping to shops soon. Price will be in the $500–$600 range.

Resonator

An extended design based on the analog resonator from the 1975 Polymoog synthesizer. This classic beauty works with everything from drums to polyphonic audio, adding lush resonating swirls.

There are three resonators, each with a selectable band. Each has voltage control for every parameter, nine CV inputs in total. Multiple gain stages (master input, resonator gain, and mix output) allow fine control and help manage clipping. Emphasis CV range boundaries prevent runaway self-oscillation. A true-bypass switch makes it easy to compare processed and dry signals—perfect for leaving it patched in and engaging only when needed.

Where and how much?

The first batch is ready, and we expect to start shipping soon. Price will be about $245.

Introducing Nensen Electronics 4U Modules

"Nensén Electronics, previously the Human Comparator, has released a new module in 4U format. The Ten Band Vocoder. A simple analog vocoder for all robot fans out there!

The previous announced sequencer Overlapping Voltage Source is now in stock as well. And there’s a few left of the joystick controlled Nested Vector Oscillator."

Ten Band Vocoder

€649.00

An analog ten band vocoder in 4U format

CLICK FOR MORE »

Xaoc Devices Introduces ORADEA and ARAD Eurorack Modules

Press release follows:

ORADEA
QUADRUPLE VOLTAGE CONTROLLED RESONATOR
MODEL OF 1950

ARAD
RESONATOR COMMANDER
MODEL OF 1950

Please welcome Oradea: a quadruple voltage controlled analog resonator. You can use it to enhance external audio or to generate tones. It can mimic the resonant characteristics of physical objects or spaces. Oradea's frequency response can be tuned over the entire range of audible frequencies with V/oct response. The module offers precise control over the resonance of each band up to extremely high values with long response to pinging. Oradea is additionaly equipped with four individual trigger inputs for exciting its filters with internally generated, uniform, and finely tuned impulses.

Individual outputs allow you to externally process each band separately. Resonant frequency gain compensation prevents uncontrolled distortion (the gain at peak does not increase with resonance). There is a VCA and a polarity switch in each channel, so you can remotely shape the overall amplitude and manually change the phase response.

By adding Oradea's expander Arad, you gain three additional features. Arad features direct audio inputs for individual channels, so you can use each channel for a different audio source (the individual channel outputs are already incorporated into the main module). There are buttons and gate inputs for manual and/or remote clickless muting and unmuting of the channels. Another group of four buttons acts in parallel to the TRIG inputs of Oradea, allowing for manual triggering.

Oradea main features:
- width 20HP
- depth 40mm (including cable bracket)
- +210mA/-190mA
- Four independently adjustable bands
- Manual and voltage control over tuning frequency, resonance, and level
- Joint and individual CV inputs with calibrated V/oct tracking
- Dedicated trigger inputs for exciting individual channels
- Individual outputs and mixed output
- Signal polarity switchable for each channel
- Signal level indicators with multi-color LEDs

PRICE: 520 EUR MSRP, available next month!

Arad features:
- width 6HP
- depth 30mm (including cable bracket)
- +10mA/-0mA
- clickless muting and unmuting buttons and gate/trigger inputs
- manual trigger buttons
- individual audio input for each channel

PRICE: 120 EUR MSRP, available next month!

Check with dealers on the right.

CLICK FOR MORE »

PPG's Superbooth Teaser Is for a New PPG 1002 Desktop Synthesizer

video upload by Cornel Hecht

"The PPG 1002, one of the rarest and most sought-after synthesizers in music history, is back as a original PPG hardware synthesizer. The PPG 1002 was, alongside the modular synthesizers, one of the last fully analog PPG synthesizer. It laid the foundation for later digital milestones such as the PPG 360, the Wave 2, and the Wave 2.2."

Follow-up to this post.

"Born for a new era"

"THE LEGEND LIVES ON

The PPG 1002, one of the rarest and most sought-after synthesizers in music history, is back as a original PPG hardware synthesizer.

The PPG 1002 was, alongside the modular synthesizers, one of the last fully analog PPG synthesizer. It laid the foundation for later digital milestones such as the PPG 360, the Wave 2, and the Wave 2.2.

The PPG 1002 reissue is now available for preorder and is strictly limited to only 102 units. The PPG 1002 is more than just a synthesizer – it represents a symbiosis of technology and ecological responsibility.

Based on Wolfgang Palm's original handwritten drawings, the PPG 1002 returns as an exclusive reissue – meticulously reconstructed and crafted with the highest precision.

This limited edition preserves the authentic analog circuitry of the original, bringing the legendary PPG sound to a new generation of musicians and collectors.

Unlike the original keyboard version, the reissue appears in the classic console-style housing, staying true to the design of the original 1002.

The PPG 1002 is an exclusive reissue of the legendary analog synthesizer designed by Wolfgang Palm in 1975. The total price is 9,999 Euros excluding shipping costs.

Production begins after your pre-order and a deposit of €4999.

The remaining €5000 is due before delivery."

SPECS

- 2 analog oscillators with transpose switches and mixable waveforms from triangle to saw

- Oscillator 2 also offers square wave and a sub-oscillator

- Oscillator 2 can be synchronized

- Noise generator for audio and modulation

- A ring modulator can be switched on instead of the noise generator

- Routable LFO with pulse and triangle waveforms

- 24dB low-pass filter with resonance

- Voltage-controlled amplifier

- 2 easy edit envelopes

- Switchable modulators for each module, allowing for an almost modular-like routing

- CV and MIDI inputs

- external precision low noise power supply

- Download the manual [pdf captured as images below]

www.ppgsynth.com

You can find previous posts featuring the original PPG 1002 here.

"THE PPG STORY
In 1975, Wolfgang Palm made synthesizer history with the PPG 1002. An early prototype featured retractable patch cables, but in the final production model, these were replaced with rotary switches for more versatile modulation. A key advantage of the 1002 over its competitors was its temperature-compensated VCO circuit, now further refined in this reissue, preserving its iconic sound.

The PPG 1020 (1977) introduced digital oscillators, paving the way for the 360 Wavecomputer in 1979, which marked the beginning of wavetable synthesis. This was followed by milestones such as the PPG Wave 2.3 (1984) with MIDI and the PPG Waveterm B (1985).

After PPG was dissolved in 1987, Wolfgang Palm collaborated with Steinberg and later co-developed the Waldorf Microwave (1989). In the 2000s, he released software synthesizers under his own name, including the PPG Wavegenerator, Wavemapper, Infinite Pro, and Phonem. In 2020, Palm transferred the PPG technologies to Brainworx, which became part of Native Instruments in 2023.

At the same time, Cornel Hecht, part of the PPG team since 2012, reviewed Wolfgang Palm’s original handwritten schematics of the PPG 1002. His mission: to faithfully bring the analog circuitry of 1975 into the present. The first prototype impressed Native Instruments, laying the foundation for this exclusive reissue.
Wolfgang Palm: "What's labeled PPG should also be PPG inside! That was and still is my motto. The new edition of the PPG 1002 is based on the original PPG circuitry."

But this reissue is more than just a synthesizer, it’s a fusion of technology and ecological responsibility. The PPG 1002 is produced CO₂-neutral, and every purchase supports sustainable environmental projects, such as Liquid Sky’s reforestation initiative in Portugal. This way, the future of sound remains not only authentic, but also green."

CLICK FOR MORE »

Custom Roland System 700 Dual VCF filter module 703f 703a side cabinet

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

via this Reverb listing

"Original vintage Roland system 700 703a and ultra rare 703f voltage controlled Filter module extension cabinet!"

CLICK FOR MORE »

Behind The Drums Ep 13 - Berlin "Take My Breath Away" Linndrum with Yamaha DX7

video upload by Controlled Voltage Sound Labs

Additional Behind The Drums episodes

"An in depth look at the making of Berlin's international number one hit, 'Take My Breath Away.' Video includes a re-creation of the drum beat using a Linndrum and bass line using a Yamaha DX7."

Drum Processing...
Kick - Teletronix LA-2A + AMS Reverb
Snare - Teletronix LA-2A + AMS Reverb
Hat - Teletronix LA-2A + Lexicon 224
Conga - Teletronix LA-2A + Lexicon 224
Tambourine - Teletronix LA-2A + Lexicon 224