ER-301: Sound Computer
for Eurorack Modular Synthesizers

The ER-301 is a voltage-controllable canvas for digital signal processing algorithms.  One of the many characteristics that attracted me to modular synthesizers is that they enabled me to make the kind of music that I love away from the computer.  However, not all digital audio tools can be elegantly and efficiently realized in a dedicated hardware form.  So, I either had to deny myself those tools, or, go to the computer. The ER-301 is the culmination of 2 years of sweat and tears spent creating a third option.

3 panel flavors are available.

Width: 30hp 
Depth: 3cm from the back of the face-plate 
Power: refer to the wiki page on ER-301 Power.
Latest Firmware Version: refer to the firmware page.

** Some details might change without notice.

Official Manual
COMING SOON: Software needs to stabilize some more before committing words to the page.  In the meantime, there is a wiki that is growing and a forum dedicated to the ER-301 which I actively monitor.

Now taking orders.  
Lead time for orders submitted now: 8 weeks (what's this?)

The ER-301 hardware is mature (revision 7) and robust, but there are a few things that you should note before purchasing:
  • There is no manual (yet).  Why?  See next point.  However there is a very active forum where you can get help and ask questions, as well as a wiki which is slowly growing with new content.
  • The software is still under heavy development which means frequent updates and bugs.  The good news is that typically any bugs found are fixed within a few days.
  • There is a substantial lead time.  I can only make a few per week.  Once you order, I will contact you with your estimated shipping date.  

International (non-Japan) Buyers
BEFORE YOU PURCHASE, PLEASE REVIEW YOUR COUNTRY'S TAX & DUTY RATES!  You are responsible for any import taxes or other duties that may be charged by the customs and postal services of your country. 
Payment via PayPal/Credit Card
Price: $885 (includes shipping to anywhere in the world via EMS)

< Don't forget to choose your panel!

Domestic (Japan) Buyers
Payment via 振込み(FURIKOMI) only.
Price: 92,000 (includes shipping and sales tax)
When you are ready to order please contact me here.