Earthworks will introduce its first 500 Series module, the 521 ZDT mic preamplifier at the 2013 NAMM show this week in Anaheim.
![[NAMM] Earthworks 1st 500 Series preamp](https://img.audiofanzine.com/img/product/normal/1/7/173703.jpg?fm=pjpg&w=334&h=243&fit=contain&s=f714c1dc3b186a3665e4096dc0143095)