Welcome to River

Design, creation and inspiration for
electronic musical instruments

Recent Products

All good things…

Posted on Dec 01, 2019 by rutgervlek

The River JX-3P MIDI expansion kit, originally sold under the name Organix, found its way into numerous classic Roland JX-3Ps. It was a joy to receive so many kind words and compliments on the kit from JX-3P owners around the world. Despite this, the time has come to discontinue the expansion kit. We hope our efforts have kept the classic JX-3P alive in the modern world, and will attempt to continue technical support for owners of the expansion kit. 

Merry Eurorack Christmas!

Posted on Dec 23, 2018 by rutgervlek

Dear synth lovers,

It was truly rewarding to receive so many positive reactions to the Eurorack designs I’ve made over the last few years. As a big thank you (and in memory of two of my dearest synth heroes), here’s a special offer, valid until the end of the year:

Coupon #1: BOBSURUNCLE – Free shipping on all Eurorack orders

Coupon #2: KEITHROCKS – 10% discount on all Eurorack orders

Happy modular 2019!

Keeping a classic alive

Posted on Dec 16, 2018 by rutgervlek

Dear JX-3P lovers,

After receiving many encouraging emails (thank you!), Laurens and I decided to do another production run of the JX-3P MIDI expansion kit. The new batch arrived right on time for Christmas and can be ordered directly from stock. If you decide to order or already own the expansion, be sure to check out the wealth of resources in the side-bar of the product page. Over the years, many wonderful initiatives popped up around our expansion for the JX-3P, making it  easy to edit from Ableton Live, iPad, a VST-capable DAW, and modern hardware.