MATRIXSYNTH: Casper Electronics

Showing posts with label Casper Electronics. Show all posts
Showing posts with label Casper Electronics. Show all posts

Sunday, August 13, 2023

SoftPop 2 in Session | Bastl x Casper | Noise Kitchen

video upload by NOISE KITCHEN

"Bastl Instruments x Casper Electronics' SoftPopII SP2 is live: 'a radical subtractive synth under the influence of unconventional digital control. It’s a rare beast that excels at both melody and noise in equal measure, ranging from bassline bangers, angelic chord progressions, distorted beats, and water droplets. It can even process inbound audio through the filter and VCA.'

Pretty words, but how does it actually sound in a live setting? In this video by Noise Kitchen staff Lotus Wash and Niels Aras we get right to it — two Bastl Instruments x Casper Electronics SoftPop SP2, one Eowave Quadrantid Swarm, one Moog DFAM, processed through Valhalla Supermassive, nothing else.

Over the 13 minutes multiple different dimensions of sound are explored, from punchy acid rollers and psychedelic slow-motion dancefloor beats, Niels Aras & Lotus Wash guide you through how the SoftPopII can be weaponised for the rave, away from the more ambient electronica applications of the synth heard elsewhere.

Filming & Editing by Adam Kořínek & Vít Linek — many thanks!"

Monday, June 12, 2023

Eurorack setup is close to final form #5

video upload by Meska

"Lonely hight note: Softpop2 to WMD orion (phaser) to typhoon
Arp : plinky
low: Grendel Drone commander 2
voice: 2hploop to Warp vocodeur
drum&sample&glitch :LD3
mixing/compresion: eurorack & LD3
all in htis to OTO bim and bam

Thank you for watching.
My name is Meska of the statik collective . I've been making mostly 'dark and expérimental' music for more than ten years now, i'v learn so much online, now it's time for me to share my knoledge, my exploration and this channel is a place to talk about the tools, sound design and techniques to make music with.

You can stream my albums and EPs at

If you'd like to support the channel​ consider buying music from bandcamp ;)"

Tuesday, February 07, 2023


video upload by Bastl Instruments

"Aikido: the Japanese martial art of nonviolent self-defense, of redirecting your opponent’s momentum and using it against them, and mixing VCA signals for creative and nuanced performance with Eurorack modular synths.

Bastl Instruments have been hard at work in the dojo with our favorite sparring partner, Casper Electronics, and now emerge with a new Eurorack module demonstrating our newly developed techniques in the ancient art of the Voltage-Controlled Amplifier: Aikido is a 4-channel performative VCA mixer with flexible submix routing and two styles of integrated envelope followers — and, natural element, a whole heap more…

The Way of the Single Palm

Neatly compact, Aikido is a perfect tool for single-hand operation: independently mute each channel using stealthy, clickless mutes, and flex your sound using a single finger to control crossfader action, smoothly adjusting signal input strengths up to +6dB volume gain.

A holistic discipline, students of Bastl Aikido will develop their mix prowess by mastering the pulse of CV, via premium attenuverters on the CV input channels; stealthily adjust the strength of the CV's parameter automation in true (positive) or inverted (negative) directions, allowing for deceptively simple or richly complex variations in sound, controlling all by a gentle twist of the wrist.

Dynamic Style: the Art of Compression

Grappling with both audio and VCA signals is simple even for beginners with Aikido: take your skills to the next degree with Aikido's dual spectral analysis and envelope-following techniques!

The envelope follower found in other Bastl/Casper modules, such as the Ikarie dual-peak filter, makes a repeat appearance, allowing you to route audio signals into the chain to affect overall output volume and strength, or take the internal audio's envelope and patch it out to impact the behavior of your other modules.

Spectral Processing joins the fray, allowing you to take a magnifying glass to the high, mid, or low frequencies in your mix. Flick between frequency isolation for enhancement, de-essing, compression, even parallel side-chaining audio (can we get a "hai—ya"!?) that ascends Aikido well above the typical territory of Eurorack mixers.

No-one Fights Alone

Need more than 4 channels of this wizardry? Stack two Aikido modules together with jumper cables to bring the total to 8 channels. Or, take the mix output of Aikido and patch it through to your Bastl Buddy with the same jumper wires, opening up possibilities of parallel processing and much more. Switches on the back of the module allow users to customize the mute functionality between Pre- or Post- VCA settings.

Where would we all be without feedback play? Self-patch Aikido's outputs back into the inputs to get that BVVRRR goodness, or take advantage of the cascading internal routing to play with the mixed audio signals, layering and bulking your sound, or direct specific channels to FX units.

Discipline in training brings rewards, and the strength of the alliance between Bastl & Casper has yielded some of our best playability techniques to date. Aikido - your one-stop control shop for Eurorack in just 11hp."

Tuesday, January 31, 2023

Break Box : Nü-Metal in a Pedal from Rainger FX

video upload by Perfect Circuit

"Let's BREAK down @raingerfx's latest effect pedal the Break Box!
Wes is calling this 'nu-metal in a pedal' so what's all the fuss about? The Break Box is an inventive distortion and chorus with a DJ-style scratch effect!

It has to be heard to be believed!

Grab a Break Box:
Read more on our blog:"

Friday, November 04, 2022

Our Friends' Favorite Filters Ft. Electronisounds Audio, Moffenzeef Modular's Ross, and Coma Tek

video upload by Perfect Circuit

"We love hearing about our friends favorite things, so we got a few of our pals to tell us all about their favorite filters in this weeks video !

Perfect Circuit is an independent electronic instrument shop with an online store at and a Burbank showroom at 2405 Empire Ave. Open seven days a week, 12-8 PM, get your hands on the most excellent gear!"

Thursday, March 10, 2022

Patch Pals Drop Analog Acid with the Softpop 2 Semi Modular Synthesizer

video upload by Perfect Circuit

"Check out even more Soft Pop goodness :

Grab a SP2 for yourself :

Patch Pals Jacob and Wes explore the sound and functionality of their favorite new semi-modular synth ; the Softpop 2 from Bastl & Casper Electronics !

Check out our video tutorial on the SP2 here."

Thursday, March 03, 2022

Bastl & Casper Softpop 2 : Analog Acid Groove Synthesizer : Features, Fun, and a Full Tutorial

video upload by Perfect Circuit

"@Bastl Instruments and @casperelectronics synthesizers Softpop 2 is finally here, and it's a ferocious and fantastically fun little friend !

Join our pal Wes for an overview of the unit and it's features, functions, and what makes it such a unique and interesting semi-modular synthesizer"

Thursday, December 30, 2021

How to use SMMP Circuit Bent Casio SK 1

video upload by SMMP

Update: jam added below.

SMMP on Reverb

"This is a little tutorial on how to operate the Circuit Bent Casio SK-1 I recently built for a commission.

More schematics and tutorial on how to bend the Casio SK-1 coming soon!

It features:

- On-board bends inspired by Reed Ghazala's work
- Pitch Control (plus LDR gestural control)
- Vibrato
- Glitches
- Blends
- Patchable LFOs
- 8 step Sequencer

Feel free to comment, make suggestions or enquiries if you're interested in getting one.

Facebook :-

Schematics for sequencer and LFOS:

#Casio SK-1 #Circuit Bending #DIY #Experimental #howto"

Casio SK-1 Circuit Bent Jam SMMP

video upload by SMMP

"Little Jammy Jam with my newly bent Casio SK-1. It's just the Casio and a cheap digital delay, enjoy!"

Wednesday, April 14, 2021

Circuit Bent Speak and Spell with Sequencer

video by SMMP

"Circuit Bent Texas Instrument Speak and Spell - loads of glitches, loops, LFO (thanks @casperelectronics for the inspiration!), synth tone, pitch pot, body contacts and a SEQUENCER inside a VHS :) enjoy!"

Another Circuit Bent Speak and Spell

video by SMMP

"Circuit Bent Texas Instrument Speak and Spell - loads of glitches, loops, LFO (thanks @casperelectronics for the inspiration!), synth tone, pitch pot, body contacts...loads of fun!"

Casper Electronics Nova Drone V 1.3.2 (DISCONTINUED) 2014

Note: This site contains affiliate links for which it may be compensated.

via this auction

"Awesome, awesome drone machine with built-in light show. Now rare and increasingly desirable. Am throwing in a power supply, which is not original / did not come with the unit."

Thursday, November 12, 2020

Bastl Instruments Ikarie by Casper & Bastl

Playlist: Ikarie by Casper x Bastl – a uniquely sculpted, flexible stereo/dual
peak filter module Ikarie Walkthrough - Every Feature Explained Ikarie - Patch
Tips Ikarie process - designers talk - Peter Edwards and Václav Peloušek

via Bastl Instruments "Reach the peaks of alien soundscapes with your Eurorack as mission control

Bastl Instruments is very proud to announce its latest collaboration with Casperelectronics – the Eurorack stereo filter Ikarie which is robust in features yet physically compact.

Ikarie is a uniquely sculpted, flexible stereo or dual peak filter module. It can continuously transition between lowpass and highpass filtering with a single knob. It also packs in an envelope follower for the incoming audio signal, which comes in handy when you're looking to increase your sound's internal animation.

Two parallel filter cores can be modulated in sync for work in the stereo realm, set apart for unique stereo effects (with either mono or stereo signal at the base), or chained together to make a 24 dB filter.

With only the mono output of the filter used, Ikarie behaves as a dual peak filter, which evokes formant-type sounds and rich, at will piercing, throaty resonance. The Beyond output gives you the spectral difference of the two filters, effectively turning the unit into a so-called twin peak filter.

Add an internal VCA, CV control over panning and resonance, optional overdrive of the input, and you can explore a vast universe of sound design possibilities, from liquidy through pinged percussive to lush and eerie. All in a very compact form factor, with tons of space for precision and creativity.

This module results from a collaboration between Václav Peloušek of Bastl Instruments and Peter Edwards of Casperelectronics. While Edwards' obsessive attention to detail gave this filter a uniquely balanced resonance and envelope response, the expertise of Peloušek delivered a one-hand user experience filter with a distinctive control scheme at a minimal footprint.

The module's name alludes to the 1963 Czech sci-fi movie Ikarie XB-1 (released as Voyage to the End of the Universe in the US), and the film served as the module's inspiration in many aspects. Long before Solaris, Space Odyssey 2001, or Star Wars, Ikarie focused on the subject of space exploration, and it paved the way for many to come. With its early electronic sound design and musical experimentation under the lead of Zdeněk Liška, immersive cinematography, and impressive production level, it remains one of the most original and exciting film titles in the science fiction genre. Bastl & Casper's Ikarie proudly carries the flag of this cinematic world.

Ikarie will be available on November 12th, through and synth stores worldwide for MSRP 240 EUR without VAT.

two parallel filter cores (left and right)
based on 12dB/oct state variable filter topology
unique lowpass/highpass switching control scheme
well balanced voltage controlled resonance circuit
envelope follower with 3 decay settings
input gain up to 5 times
stereo modulation - either panning of filter detuning
flexible patch programmable topology
beyond output for difference spectrums (twin peak filter)
modulation attenuverter
v/oct input with scaling trimmer accessible from the front panel
output stereo VCA

Technical details:
power consumption: +12V: 100mA, -12V: 95mA
PTC and fuse protected 16pin power connector"

Thursday, October 08, 2020

Casper Electronics Novadrone (double board with DIY case)

Note: This site contains affiliate links for which it may be compensated.

via this auction

You can demos in previous posts here.

Monday, September 21, 2020

Casper Electronics Drone Lab

Note: This site contains affiliate links for which it may be compensated.

via this auction

"Very sought after and unique drone synth by the legendary Pete Edwards AKA Casper Electronics.

It has 4 oscillators 2 filters, tremelo, audio input, distortion and trigger in and out.

It is a great sounding and very flexible drone synth, from hypnotic ambience to spacey weirdness to rhythmic pulsations and anything in between."

You can find demos of Casper Electronics Drone Lab in previous posts here.

Tuesday, July 14, 2020

Speak And Spell Breakout 1.2, Refurbishing A Modular Speak And Spell


"I Built this heavily #modified #modular speak and spell a few years ago, and never properly finished it and sadly it just got more and more broken, i borrowed all of the relays from it once and never got it up and running again. till today!"

Saturday, April 25, 2020

Superbooth 20HE: Bastl Instruments MIDI Looper and Stereo Filter Prototype

Published on Apr 25, 2020 sonicstate

"Bastl Instruments are always working hard to bring something new to their booths at trade shows. However obviously this year we weren’t able to visit their booth so we caught up with them in a virtual booth to check out two new products, the tiny little MIDI Looper and a new stereo filter module.

The MIDI Looper has 3 channels A, B and C that can take MIDI information in and loop this, this can be note data, and also CCs etc. Notes can be quantized, manipulated to be played back slower, or quicker using an in built time-stretch function. You can also transpose entire loops and use an analog clock to sync the MIDI Looper to your eurorack system. Although the system is not meant to be a sequencer you can store some loops on the device itself.

We also took a look at a new prototype stereo filter module built in close collaboration with Casper electronics."

Monday, February 10, 2020

Bastl & Casper Electronics Waver - Eurorack Wavewarping Mixer

Published on Feb 10, 2020 Perfect Circuit

"Following the no-input mixer-inspired module Dark Matter, the newest collaboration between Casper Electronics and BASTL Instruments is Waver: an experimental mixer which allows for crossfading, wavefolding, square shaping, ring modulation, and feedback in order to create edgy mixes more than the sum of their inputs.

In this video, the WMD Crater, Intellijel Plonk, and Mutable Instruments Plaits are combined through the Waver. The Waver's impact ranges from warm coloration to explosive wavefolded blasts and biting high end—making for something with considerably greater sonic depth than the average mixer. A Tiptop Echoz rounds out the signal chain, while a Winter Modular Eloquencer and Intellijel Quadrax provide finely-tuned sequencing and control."

Friday, January 10, 2020

One Off CasperElectronics Bastl Circuit Bent Analog Wave VCO Synth

Note: This site contains affiliate links for which it may be compensated.

via this auction

Update: not sure if this is a circuit-bent Speak & Math or if it's just the case with other internals. If you know feel free to leave a comment.

"The Diamond Dreams MT-404 Custom by Peter Edwards of Casper Electronics & Bastl fame.

This is portable live performance art in your hand; the stuff usually reserved for names like Patton and Elfman.

It is a prototype. The only one.

I am including the original notes and instructions that accompanied this instrument. A lot of time was spent considering how the musician/user would interface with the device respecting what it was capable of at extremes of deviation from the manufacturer's specification.

Note the little catch so the battery compartment door can't get away from you. The battery compartment is clean and it will run on batteries. It also comes with a wall wart style a/c cable so you can plug it into an outlet in studio and not worry about battery life.

This level of technical design and craft is truly exceptional. R2-D2 love songs, Aleatoric effects, gibberish, future-retro sci-fi grime and garbage.

Someone is going to be very happy."

Monday, May 20, 2019

Latest SUPERBOOTH Videos from Perfect Circuit

Published on May 20, 2019 Perfect Circuit


1. Patching Panda Holograms & Vibrazum Jam SuperBooth 2019
Patching Panda played this jam for us on a system made with their modules. They have a new triple oscillator called the Holograms that will give you tons of modulation options as well as a new design for their triple filter the Vibrazum.
2. Schlappi 100 Grit Sounds SuperBooth 2019
Schlappi has done it again with a new noisy eurorack module, the 100 Grit. It has touch points and produces awesome squealing and squeaking feedback tones when provoked.
3. Worng Soundstage Sounds SuperBooth 2019
Worng showed us how their Soundstage module moves your sounds around in the mix and makes it easy to get a clear spatialized mix with your eurorack sounds.
4. Shakmat Modular Jam SuperBooth 2019
Shakmat Modular showed us this quick jam using their modules to quickly put together and tweak a sequence on on eurorack setup. The Four Bricks Rook is an incredibly fast way to put together a rhythmic sequence.
5. Birdkids Raven & Unicorn Boom Sounds SuperBooth 2019
Birdkids showed us their Raven two VCO synth voice module and their kick drum, the Unicorn Boom at SuperBooth 2019.
6. Winter Modular EME (Eloquencer Midi Expander) Jam SuperBooth 2019
Winter Modular played this jam for using their new EME (Eloquencer Midi Expander) with an Eloquencer to program in this sequence and manipulate it live. The EME allows you to sync the Eloquencer with external midi clocks, control settings and program sequences into the Eloquencer and send midi out from the Eloquencer to sequence non eurorack gear.
7. Casper Electronics OMSynth Jam SuperBooth 2019
Casper Electronics had a laboratory setup at SuperBooth 2019 and they played this quick jam for us so we could hear some of the sounds their synths are capable of. The OMSynth will soon have a eurorack version and the Dark Matter as always produced some great feedback distortion sounds.

Supporters of MATRIXSYNTH get %10 off at Perfect Circuit! See the support page for details.

Saturday, May 11, 2019

Peter Edwards - Bastl OMSYNTH euroLab - #superbooth2019

Published on May 11, 2019 cuckoomusic

"Peter Edwards is showing hist latest work in progress inventions. A breadboard eurorack module, an update on the progress of party mix, and overall an interesting talk."

PARTY MIX module - worlds first AI mixer with Z output?

Friday, January 04, 2019

DARK MATTER - Feedback Eurorack module by Casper Electronics & Bastl Instruments

Published on Jan 4, 2019 Bastl Instruments

Don't miss the end. :)

The press release via Bastl Instruments:

"Bast Instruments and Casper Electronics are proud to present the newest member of our modular family. Meet Dark Matter, a high energy sound processor and signal generator that unleashes the crazy raw power of audio feedback into your eurorack system. It’s inspired by “no input” mixer feedback techniques that explore the complex natural behaviors of amplifier circuits pushed beyond their limits. Dark Matter brings this behavior to the modular synth, adds voltage control to everything, tons of patching options and a big ol’ bag of tricks for making feedback a truly *playable* effect.

-Excite audio signals to the breaking point with 4 flavours of voltage controlled overdrive.
-Turbo charge percussive hits and drum beats.
-Add sub-octave tones and timbrel richness to melodies and bass lines.
-Tweak your tone with a crunchy overdriving 2 band EQ.
-Add signal ducking and gating effects with the built in envelope follower.
-Go the feedback way and create meandering loops through your rack using the 10 I/O jacks…..Feedback your feedback your feedback.

Dark Matter is available now at and select dealers for 265 EUR excl. TAX

-Input VCA with gain and soft clipping
-2 band equaliser with voltage controlled bass and treble boost/overdrive
-Voltage controlled feedback
-External feedback section for making and fine tuning loops through other modules
-Voltage controlled crossfade between input and feedback signals
-Input tracking envelope follower for adding ducking and gating effects
-10 I/O jacks for adding CV and making crazy loops

- 13 HP
- PTC fuse and diode protected 10-pin power connector
- 24 mm deep
- power consumption +12V: < 75mA; -12V: <75 mA"

Patch n Tweak
Switched On Make Synthesizer Evolution Vintage Synthesizers Creating Sound Fundlementals of Synthesizer Programming Kraftwerk

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