Tag: ADSR

Synthrotek Quadrangle – DIY Build

October 28, 2021
BuildDIYEurorackGalleryGeneralModularPhoto GalleryPhotosReviewSynthDIYUpdatesVideos

Synthrotek Quadrangle - DIY Build

The Synthrotek Quadrangle is a quad cascading triggered envelope generator with bipolar output attenuversion and is 20HP module with a lot of versatility. With 4 cascading envelope generators and user voltage control over attacks and decay/release, this module is in a class all to itself. 

As the fall season slowly began creeping in, we decided to go back and see what kits we had left to build for the year. To our surprise, we totally forgot that we had the mysterious Quadrangle from Synthrotek up on our build wall. This was partially due to the studio remodel and the continuous go go go of daily life. 

The Kit...

When we opened up the kit, the first thing we noticed was the size of the boards. This was a BIG module. 20HP to be exact. It consisted of 2 PCBs and one panel. We ordered the kit with the black panel but Synthrotek also offers a silver panel. As this kit was a big one, we knew we where in good hands with the amount of build data there would be available.

Included in the kit was a printed BOM as well as all the components you need to complete the kit.

Intermediate to advanced builders will not have an issue with this build, whereas novice builders could struggle due to tight soldering pads. 

Read More

Synthrotek ADSR – DIY Build

February 22, 2021
BuildDIYEurorackGalleryGeneralModularPhoto GalleryPhotosReviewSynthDIYUpdatesVideos

Synthrotek ADSR - DIY Build

For our latest build, we take on the new Synthrotek ADSR. This ADSR is a small (only 4HP) and simple envelope generator that has a CV additive available in its ADR stages giving it a unique controllability that few ADSR modules have.

It is well known that as one dives deeper into the world of modular synthesis, it becomes apparent that certain types of modules are needed to compose dynamic sound. ADSRs can dynamically change the “movement” of sound due to its ability to alter parts of the sound waves. 

Before we jump into the build, we have to state one thing.An ADSR is a must for any modular artist, and the Synthrotek ADSR is an excellent choice!

What is an ADSR?

By definition, ADSR stands for Attack, Decay, Sustain, Release. It’s a must-know concept for all types of music production and sound design. Together, they make up the ADSR envelope which can alter the shape and sound of audio giving you dynamic music.

This concept of ADSR applies to all sound no matter what kind of source you’re using. ADSR controls are most commonly found on VST synths, hardware synths and samplers. Now, enough with the jargon, lets get on with the latest build… 

Read More