Thursday, January 19, 2023
RK008 + RK006 - USB Expansion
video upload by Retrokits
"By request a little video about connecting the RK-006 to the RK-008 via USBSerial. This can expand the RK008 with a complete extra MIDI-I/O bus, adding up to 4 MIDI Inputs and 12 MIDI Outputs (+ the extra USB you can plug into the USB-hub)
(Of course it will also work to just connect the RK-006 to the RK-008 via a TRS stereo audio cable but then the inputs of the RK-006 will not be merged with the ones on the RK-008.)"
Feedback Modules MIX BX / MIX CR / MIX KM / eurorack mixer sound comparison
video upload by BRiES
"In this video I run different patches and sounds through these three mixers by Feedback Modules in an attempt to highlight the sound differences between them.
MIX BX, MIX CR and MIX KM have gain to spare and excel at saturating sounds, but they can do clean sounding mixes as well. The channel strips host an equaliser, a gain knob, two auxiliary mono sends (with stereo returns), a panning knob, clickless mutes and a volume control.
For a detailed overview of the features of the MIX BX (which has the same features as the other two mixers) you can take a look at this extensive playthrough video:"
Feedback modules MIX BX / eurorack mixer / extensive playthrough
"In this video I do a complete rundown of all the features this 6 channel eurorack mixer by Feedback Modules (a eurorack maker based in Romania) has to offer.
The MIX BX is perfect for making submixes for your drums or mix (and glue) together synths that benefit from some nice sounding saturation.
I demonstrate how to chain 2 channels to make hardstyle(?) kickdrums and how you can make use of the 2 aux sends to create a bus for parallel saturation.
At the end of the video there's a long 'no talking' segment where I systematically run through different sounds while tweaking the parameters... this might feel like an unnecessary boring part of the video but I really think getting to know what it sounds like is the most important thing... feature-wise the MIX BX is 'what you see is what you get' so there's not a lot of fancy tricks that you can pull of with it, apart from adding tons of character to anything you put through it.
correction: it is capable of amplifying line level signals to modular levels but there's no guarantee that the signal will stay clean
0:00 intro
0:31 hi
2:08 front panel features
12:55 distorted kickdrum trick
18:27 parallel saturation
24:13 no talk runthrough
I was thinking about what to type between 'MIX BX' and 'extensive playthrough' and the things that came to mind were '6 channels of bonkers', 'eurorack 90s grunge mixer', ... but none of that really serves the MIX BX justice. It does all the glue, grit and grime of the Boss BX era range of mixers, but the thing that stood out to me the most, compared to other eurorack mixers I've tried, is the amount of low end on this thing (what I would consider as 'warmth').
You can support my channel at http://ko-fi.com/BRiES - there's some exclusive content and downloads. This includes several patch breakdowns and some designs I made. There's also a seperate shop where I sell virtual instruments (ableton live) and sample packs. If you're interested in getting one on one feedback, guidance, in-depth explanations, etc please contact me at briesmodular at gmail dot com - I just started doing this 1 on 1 thing so it's still very much in its infancy. Send me a message if you're curious!
DISCLAIMER: Andrei from Feedback Modules sent me this mixer because I insisted that he should make some kind of demo to showcase the character (sound) of this mixer, since that's its main feature. I was genuinely interested in the MIX BX and I'm really happy I got the chance to make this video so everyone out there wondering about how it sounds can watch my video and at least get some idea about what it's capable of."
6 Analog Synths and a Nord in Harmony
video upload by Bata
Moog Source
Behringer 2600
Studio Electronics Boomstar 5089
Behringer Pro-1
Nord Wave
Korg Mono/Poly
Yamaha CS-15
Wednesday, January 18, 2023
Testing the EMS rig
video upload by zack dagoba
"I hereby try putting a little sequence made upon the VCS3 and TKS through the Polysynthi filter and delay. An added bonus is that I can add some notes from that particular instrument along the way"
EMEAPP SONIC TEST DRIVE: SYNTON SYRINX Feat. DON SLEPIAN
video upload by EMEAPP
"Here for your listening and viewing pleasure is yet another rarity from our extensive collection of obscure and unusual mono synths. This is the Syrinx from the Dutch manufacturer Synton, circa 1983. This particular unit features the rarest color combination of the whole production and we were proud to have it featured in the Synth Gems 1 book from Bjooks. In this episode of Sonic Test Drive, join electronic music pioneer Don Slepian as he takes you through the ins and outs of this beast, including it's highly sought after filter and unique paddle controls.
You can find us at www.emeapp.org where we invite you to join us as a FREE member."
DIY MIDI Patch Storage box for Yamaha Reface CS
video upload by Extralife
"I love the Yamaha Reface CS but its Achilles' heel is its inability to remember patches or presets. I created a device to solve this by storing the control change values and re-setting them over MIDI, using Arduino nano and a custom interface PCB.
The source code and PCB files are available here:
https://github.com/matthewcieplak/ref..."
ADSR Card Long Attack
video upload by Todd Barton
"The Portabellabz ADSR/LPG Card can create longer envelopes than the Easel's EG. Here I haven't even maxed out the Decay, Sustain & Release parameters so I'm guess longer envelopes are possible. Enjoy!"
https://www.portabellabz.be
Roland Juno 60 MIDI SN 290436 w/ CHD MIDI
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
Pics of the inside below.
"Just reccaped and calibrated
- All potentiometers, faders and buttons have been cleaned
- CHD Midi interface has been installed where there was the DCB connector,
so: any hole is been drilled, and the original DCB cable is given with the unit,
in case you want the Juno60 in stock MUSEAL condition
- The low quality case has been replaced with a solid walnut wood one: TOP!
https://reverb.com/item/58147246-roland-juno-6-60-wooden-case-analog-synthesizer-solid-walnut-wood- excellent-build
"Custom maple wooden case for Roland Juno 6/60 These are exact copies of the original dimensions and are hand crafted. Replace the old particle board of high quality solid wood. The front long bar and side panels are milled from Walnut wood. The wood is finished with dark wax. The MDF base is built from moisture resistant material. Panel hinges pins are installed. Aluminum foil shielding cut to original dimensions. Knockin inserts for all screws have been installed and the bottom side of the case has been painted flat black"
- The electric plug has been replaced with a Schucko Bticino
- Few small dents are present on the panel, check the pictures: nothing serious: it looks amazing!
- 220 Volts
- Clean: ouside, inside, pots and benders...a pleasure to touch"
via this auction
Pics of the inside below.

- All potentiometers, faders and buttons have been cleaned
- CHD Midi interface has been installed where there was the DCB connector,
so: any hole is been drilled, and the original DCB cable is given with the unit,
in case you want the Juno60 in stock MUSEAL condition
- The low quality case has been replaced with a solid walnut wood one: TOP!
https://reverb.com/item/58147246-roland-juno-6-60-wooden-case-analog-synthesizer-solid-walnut-wood- excellent-build
"Custom maple wooden case for Roland Juno 6/60 These are exact copies of the original dimensions and are hand crafted. Replace the old particle board of high quality solid wood. The front long bar and side panels are milled from Walnut wood. The wood is finished with dark wax. The MDF base is built from moisture resistant material. Panel hinges pins are installed. Aluminum foil shielding cut to original dimensions. Knockin inserts for all screws have been installed and the bottom side of the case has been painted flat black"
- The electric plug has been replaced with a Schucko Bticino
- Few small dents are present on the panel, check the pictures: nothing serious: it looks amazing!
- 220 Volts
- Clean: ouside, inside, pots and benders...a pleasure to touch"
Waldorf Microwave XT SN 010728026
Note: Auction links are affiliate links for which the site may be compensated.
via SYNTH CITY Reverb
Note auction links are affiliate links. See the site's privacy policy for more info.
"Fantastic working and sounding Waldorf 10-Voice Microwave XT. Shows minor surface wear and slight knob discoloration (very typical on these). Running OS version 2.33. Includes aftermarket power supply."
via SYNTH CITY Reverb
Note auction links are affiliate links. See the site's privacy policy for more info.
"Fantastic working and sounding Waldorf 10-Voice Microwave XT. Shows minor surface wear and slight knob discoloration (very typical on these). Running OS version 2.33. Includes aftermarket power supply."
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH