External Fader Controller for 664 and 688 mixers. Adds dedicated front panel controls for inputs 7-12 of the 688 and 664. Also offers LED output meters and additional recording controls



Product Registration

One-year standard warranty turns into two-years upon registration.

Register Your Products

Repair Request

Get product services by a factory authorized technician

Repair Products
Contact Support

Have a question for our support team? We love to help, talk, and correspond with our customers.

Contact Support


No firmware downloads available


There are no accessories for this product.

In Action

Italy's production sound company, Soundfish, relies on Sound Devices gear to serve a wide range of popular productions, such as X Factor, Top Chef, Italia's Got Talent, and more.Read Article
Sharon Frye
Read Article
Erik and Joseph Duemig
Read Article
George Flores, CAS
Read Article