Weston Precision Audio - Pro2021 & Fractal Audio VP4

video uploads by Tumeni Knobs

"I recently finished building the Weston Precision Audio Pro2021 from the Synthcube.com kit. It was an amazing experience to build an entire synth from a giant box of parts, and I had a ton of fun. This synth is a clone of the venerable Sequential Pro One from the early 80s and it sounds incredible. It may seem limited but it offers tons of sound design capabilities, and it's certainly a lot of fun to play. Like with most synths, once you add reverb and delay you can't really go wrong.

This is just an informal, not very well prepared noodle on it. The Pro2021 has midi and CV control options on the back panel, and here I'm using my modular rack to drive the clock which drives the arpeggiator rate. The audio outs are going into the modular's mixer, and effects are from the Strymon Starlab and Veno-Echo. This particular patch is highlighting the oscillator sync feature, which I love the sound of. The internal LFO is modulating the pitch of Osc 1 and Osc 2 is set to triangle wave. Sounds big and fat and crisp and clean all at the same time. Cheers!"

Fractal Audio VP4... with a Synthesizer. Is it any good?

video upload by Tumeni Knobs

"Oddly, when researching the VP4, I couldn't find any demos of it being used with a synth, so I bought it anyway to see if it would be a good match. And yes, most emphatically yes, it is! It was immediately apparent they would go well together - and having only played around with the VP4 for a couple of hours, I thought this video might help others decide if it could work for them.

Obviously, the VP4 does so much more than Drive, Chorus, Delay and Reverb, but those are bread-n-butter effects, so I stuck with those for this quick sound demo. I've since messed around with other effects in the VP4, and found all kinds of great sounds.

The synth is a Weston Precision Audio Pro2021 - a clone of the legendary Sequential Pro One. I built this from a DIY kit I bought from SynthCube.com. It's a simple mono-synth, with no built in effects, and it really does sound excellent - and even more so with a little effects (or a lot of effects). It's filter is super resonant and easily gets squelchy, but that enables some of the greatest sounds when you play with the cutoff knob. ;-)

The recording is direct mono out from the synth into the VP4, stereo out from the VP4 to the iRig Pro Duo that's connected to my old iPhone 12. I opened the audio file in Presonus StudioOne to see if it needed some EQ or compression or normalizing, but I decided to leave it completely raw. I made no changes to the audio whatsoever.

So, I am completely sold on the VP4. I have a load of other effects pedals, including the Eventide H90, and this thing is amazing. The quality of the effects and the build are absolutely top notch, and the user interface is so easy to use right out of the box. It's way way way easier to mess with than the H90...

Cheers!"

Weston Precision Audio: SV1 & SF1 | Full Demo and Review

video upload by Happy Mag

"Tasteful design and even tastier tone — that’s Weston Precision Audio! 🎛️
Met Devin at Buchla and Friends earlier this year and it was an absolute treat 🙌

Starting with the SV1: a dual stereo VCA with both vintage and clean paths — four VCAs in total 🔥
Vintage brings warm saturation with discrete transistors, while the clean side is modern, transparent, and tight 🎯
Run it in mono or stereo, link controls, bias your CV, and boost gain up to +6dB.
Need grit? Crank the input or flip the Overdrive switch for creamy distortion or sharp clipping 💥
And yes — zero-crossing detection eliminates clicks from fast envelopes. Smooth as 🧈

Next up: the SF1, a stereo or dual-mono VCF with two identical 4-pole filters.
Switch between LP, HP, BP — or tap into notch, all-pass, and phaser outputs too 🌈
Link the filters or keep them independent. Modulate everything, shape stereo motion, or use it as a sine oscillator with 1V/oct tracking 🎶
It’s a filter, it’s an oscillator, it’s a full-on sound design weapon 🧪

Head to WestonAudio.com to dive deeper.
And shoutout to Pig Hog for keeping the patch bay clean 🐗⚡️

Special thanks to Pig Hog for the cables!

#WestonPrecisionAudio #ModularSynth #VCAmagic #EurorackLove #SynthDesign #FilterFreaks #StereoModulation #PatchPerfect #ZeroCrossing #SynthCommunity #EngineeringTheSound #ETS

0:00 - Intro
0:04 - Overview
0:15 - SV1
1:21 - SF1"

Weston Audio VCA on Drums

video upload by Sami Rabia

Man what a messy room

video upload by Steve Turner

http://www.five12.com

Ambient modular jam into the Wesaudio Rhea tube compressor

video upload by Sonic Circuitry

"With this 500 series stereo channelstrip, featuring the WesAudio Rhea tube compressor, I’ve got a great sounding chain for recording my modular synth, needing no additional plugins to finalize the sound.

The Hermod+ is sequencing modules by Vostok, with a zlosynth Kaseta adding tape saturation/delay on one of the voices. Then into the Weston Audio mixer, Strymon Starlab adding reverb, and the right output channel goes through the Echo Fix EF-X3 before it hits the 500 series chain."

Note this is the first post to feature zlosynth instruments.



Kaseta is a multi-purpose module inspired by reel-to-reel tape machines. It simulates magnetic hysteresis to provide warm saturation, its four independent delay lines can be used to sculpt rhythms or feedback loops, and it offers wow and flutter control. The module also goes beyond typical tape machine features, with free-moving delays, trigger sequencing, and an internal oscillator.

While the module works perfectly well as a regular delay, its flexible interface can also be wired up to provide a variety of effects, sounds or CV sources. The following list summarizes its main features. To learn more, see the User Manual.

Aluminium panel with high-quality anodized finish
CNC engraved lettering
20 HP, skiff friendly
Delay with 4 reading heads
Tape saturation simulation
Wow and flutter effects
Stereo output
Up to five minutes of recording
Internal oscillator
Trigger sequencer
LEDs visualizing dialed parameters

SUPERBOOTH 2024: Weston Precision Audio - Dual Stereo VCA

video upload by sonicstate

"At Superbooth 2024, Devin from Weston introduced a new module to complement their existing analog modules. The Dual Stereo VCA is designed to complete the synthesizer voice, featuring two VCA's per channel - a vintage discrete transistor VCA with vintage op-amps and a clean modern chip-based VCA with modern op-amps. Devin showed how the module works with two independent channels and a link button to control the stereo pair for a stereo VCA effect. The Dual Stereo VCA offers options for clear hi-fi sound or vintage over-driving, with features like over-drive switches, detent controls for input and output gain, and a zero-cross detect to eliminate clicking artifacts.

Dual Stereo VCA Price: 220 USD"

Five12 QV-L Quad Variable LFO

video upload by Steve Turner

"Vector Sequencer, QV-L, nRings, Weston Precision Audio SF1, 4MS DLD

So really I am testing the ATEM MINI PRO and headset mic here. I think I got it close but when I started dialing the grit in using the LEVEL on the SF1 you can really hear it pushing (which is a good thing, but less good for video levels). This is fun."

http://www.five12.com

FREE RUN for GATES on the Five12 Vector Sequencer

video upload by Steve Turner

Weston Audio "Pro 2021" Sequential Circuits Pro-One Clone

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

via this auction

Note auction links are affiliate links. See the site's privacy policy for more info.

Demos previouslpy posted here, here, and here.

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MAKING A MASSIVE BASS LINE WITH THE SEQUENTIAL TAKE 5 SYNTHESIZER

video upload by Lido Pigeon

"Equipment list:

Bass: Sequential Take 5
Pads: Korg Prologue
Lead: Roland SH101
Drums: Weston Audio AD110

FX: Strymon El Capistan and Blue Sky, Make Noise Mimeophon, Music Thing Twin Drive

Mixing: Cosmotronic Cosmix"

Weston AD110 Analog Drum Synthesizer Jam

video upload by subjectivize

"Antumbra Grids playing the Weston AD110 Analog Drum Synthesizer, seasoned by QuBit Data Bender! Electronic music on the Eurorack format modular synthesizer."

See the announcement post here.

WESTON PRO2021 Monophonic Synthesizer - SC Pro One Clone

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

via this auction

"This is a faithful recreation of the classic Pro One analog synthesizer circuit though with some serious construction upgrades. This keyboard is simply a tank of an instrument. Even the pitch and mod wheels are made of solid anodized aluminum.
It's loaded with the popular MTG TURBO CPU upgrade that allows 5-pin midi in, out & thru.
The oscillators use the famous Curtis CEM3340 rev G chips. It's as true to the Pro One circuit as it gets - but of course with modern parts which grants improved stability.
The keybed is a 37 key FATAR TP/9S (semi-weighted) with no aftertouch strip.
The chassis is powder coated aluminum with machine milled cherry wood end cheeks that I had treated with tung oil and finished with a bee-wax based wood polish."

Superbooth 2023 Weston Precision Audio H1 Analog Harmonizer

video upload by sonicstate

"We spoke to Devin from Weston Precision Audio at Superbooth 2023. He showed us his new module called the H1 Analog Harmonizer. It features two digitally controlled analog oscillators with a pitch tracking input, generating instant analog chord stabs. The module also has dual quantizers and analog through zero FM, making it a great addition to any modular rig. It's in the final stages of development, with user-updatable firmware and a target price of $395 US.

Devin also mentioned an additional Chord Mode where users can save and address 12 chords with CV inputs. The goal of this module was to simplify the process of achieving basic polyphony in a modular rig without having to tune multiple VCOs. Overall, the H1 Analog Harmonizer is a unique and affordable module that will be a great addition to any modular synth setup.

More info: https://www.westonaudio.com/"

Weston Precision Audio - AD110 Analog Drum Synthesizer

video upload by SchneidersLaden

"Here is a quick look at the Weston Precision Audio AD110 - a six-voice analog drum module inspired by the famous Boss DR-110. It features single outputs for each drum voice and an additional mix output that reacts to the accent input. This is a simple to use module with a great sound and feel. You'll notice that it is possible to create "ghost notes" with combing long decay sounds with accents - very nice!"

"Weston Precision AD110 is a six-voice analog drum machine inspired by the famous Boss DR-110.

The Boss DR-110 is a sought-after vintage drum machine that resembles its more "famous" sister, the Roland TR-606, in many ways sonically, featuring an additional clap besides a different look/operation. Weston Audio have beefed up the DR-110, which is also often found modified, and expanded the functionality of the rather static original. Thus, the individual sounds can all be accessed separately and sonically modified. The clap was even given a reverb, while an accent input can be found at the mix-out.

Features:

Faithful recreation of all six DR-110 voices, output in Eurorack signal format.
Additional sound setting options that go far beyond those of the original: Kick: Pitch/Resonance, Snare: Pitch/Decay, Cymbal: Decay and Clap: Spread/Reverb.
Single outs + mix out with accent input"

Weston Precision Audio - B2 Kick/Bass Voice & XAOC Devices - Koszalin

video upload by SchneidersLaden

"In this video we listen to two quite interesting modules, both in combination and separately. This is not a video manual or tutorial, just some sounds and patches with these two modules.

The Xaoc Devices Koszalin is a digital stereo frequency shifter with linear thru-0 and exponential FM - Xaoc Devices have once again managed to build a module on a digital basis, which delivers an incredibly precise and high-quality sound. Even if we push it to the limits more often in this video, the sonic quality shows in almost every situation.

The Weston Precision Audio B2 Kick/Bass Voice module describes itself virtually by its name. It features an oscillator, envelope, filter and VCA - in other words, everything you need for a monophonic, subtractive synthesizer - only here everything is designed to create kicks and bass. The versatile oscillator with waveshaper, the great sounding filter and the well thought-out user interface make working with the module a great delight."

Weston Precision Audio B2 - Synth voice Demo

video upload by Dziam Bass

"Hello Guys.
Weston B2 is Kick module And also synth voice,
After the last demo kick, today I added the sequencing to show the Synth voice how it sounds - for me it's wonderful. I added some reverb in the last sequence and raised the pitch to get a nice melody
Earlier, I showed sequences and playing with Decay and sometimes adding Sub and some waves.
It's a self-contained synth voice from Kick, so I really like it.

More about module :
B2 contains everything you need to create deep, thumping kick drums or cutting bass lines in one compact 14HP unit: A 1 V/Oct VCO with 4 waveforms, a 3-way waveform mixer with sub-octave sine wave, 2 fast, switchable AR/AD envelope generators, a high quality VCA, and a multi-mode VCF for additional tone shaping!

New features of B2 from B1:
+ New reset/trigger circuit and faster minimum attack times (~25uS) without artifacts
+ Sub-octave sine
+ Wave select saw or 2x saw
+ New VCF with LP/BP/HP selection"

B2 Kick Drum/Bass

B2 contains everything you need to create deep, thumping kick drums or cutting bass lines in one compact 14HP unit: A 1 V/Oct VCO with 4 waveforms, a 3-way waveform mixer with sub-octave sine wave, 2 fast, switchable AR/AD envelope generators, a high quality VCA, and a multi-mode VCF for additional tone shaping!

New features of B2 from B1:
+ New reset/trigger circuit and faster minimum attack times (~25uS) without artifacts
+ Sub-octave sine
+ Wave select saw or 2x saw
+ New VCF with LP/BP/HP selection
+ Stable voltage references for VCO stability under power supply fluctuations
+ All OTAs are LM13700 for easy parts sourcing

TIME SEGMENT OSCILLATOR | Weston Precision Audio - TS0 Analog VCO

video upload by DANIELE

"The Weston Precision Audio TS0 is a very unique analog VCO which allows you to create your own waveshapes using the 12 individual sliders. You can store up to 5 different sounds and go crazy with the modulation section!"

TS0 Time Segment Oscillator

TS0 is a unique analog VCO which allows you to "draw" the shape of your waveform via the 12 individual sliders. Each segment can then be individually modulated by one of 2 modulation inputs. Additionally, the top level driving VCO can be mixed in for more harmonics. In Sample & Hold mode, TS0 can generate a stream of completely random waves formed by the built in analog noise source. You can even turn the frequency way down and use the output as a 12 step sequencer! From epic drones, to wavetable-type tones, the TS0 can do it!

Features:
+3 distinct modes: Live, preset, and sample & hold.
+5 preset storage locations.
+Transistor based white noise source.
+Sub-octave square wave output.

Specs:
+24HP module size, 25mm Deep
+Power 100mA +12V / 60mA -12V

THRU-ZERO OSCILLATOR | Weston Precision Audio - TZ0 Thru-Zero VCO

video upload by DANIELE

"The Weston Precision Audio TZ0 is a triangle-core oscillator which is capable of thru-zero linear FM and a few other nice things I'm going to show you in this video!"

Note Weston Precision Audio also makes an SCI Pro One clone.

via Weston Precision Audio

"TZ0 Thru-Zero VCO

TZ0 is a DIY-friendly analog Voltage Controlled Oscillator module in Eurorack format. TZ0 is a triangle-core VCO which is capable of thru-zero linear FM. This VCO has been engineered for extremely good 1 V/oct response over a large tuning range and great thermal stability.

Features:
+Thru-Zero Linear Frequency Modulation.
+5 wave shapes: Sine, Triangle, Sawtooth, Square, & Pulse.
+Extremely good tuning linearity (<+/-5cents over 10 octaves).
+Built-in high frequency compensation.
+Hard Sync input (reset type).
+Built in VCA for modulating Linear FM signal with an envelope.
+Robust old-school design with mostly through hole components, large copper traces, and easily obtainable replacement parts."

Phase modulation - 4 examples

video upload by John Schussler

Update: new video with 4 examples.

"Here are four VCOs that all offer phase modulation in one form or another:

Weston Precision Audio: PAO Phase Animated Oscillator
Patching Panda: Operat
WMD: Phase Displacement Oscillator
Joranalogue: Generate 3

I'm trying to get my head around how their implementations differ, and what the ultimate effects of those implementations are on the sound.

There's one more phase modulation VCO I have that I didn't include: the Mindphaser. It's a complex oscillator with a very different architecture, so didn't seem like a good fit. I did a couple videos on that a while back, if you want to hear some of its phasing.

Sequencer: Stochastic SIG. Modulating VCO: Intellijel Dixie II+

00:00 Intro
00:20 Weston Audio PAO
07:40 Patching Panda Operat
13:22 WMD PDO
22:48 Joranalogue Generate 3"

Weston PRO2021

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

"Sound demo of our Weston PRO2021 monophonic synthesizer we are selling here at Noisebug."

Listed on Reverb here. Pics previously captured here.

Also see https://www.noisebug.net/

"West Pro One"

Weston - PRO2021 Sequential Circuits Pro-One Clone

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

via NOISEBUG Reverb

You can find demos here.

"This Sequential Circuits Pro-One clone sounds incredible and has the same feel as the Pro-One did. The pure analog circuitry give the synth its phat and warm sound.

PRO2021
PRO2021 is a sonically true-to-form replica of the classic Pro-One monosynth that adds to and improves on the original by using a top-quality semi weighted keybed, rugged formed aluminum chassis, machined aluminum pitch and bender assemblies, and cherry wood ends."

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