EMG ACS – Vintage Active Soundhole Pickup, Ultrajak, 9V Kit Complete

Description:

Up for sale is an unused early-production EMG ACS Active Soundhole Pickup kit, featuring the original Ultrajak endpin jack, 9V battery hardware, and the original instruction sheet.

The ACS is one of EMG’s most respected acoustic solutions: a magnetic humbucking soundhole pickup with built-in preamp, designed for clear, natural acoustic tone with excellent feedback resistance. Unlike passive soundhole pickups, the ACS delivers a strong, full-range output ideal for both live and studio use.

Why This Version Matters:

• Ultrajak Hardware (Introduced 1998): EMG’s proprietary endpin jack with 360° spring contacts and built-in battery switching. Far more robust than generic jacks.
• 9V Battery System: Early ACS units use a full 9V clip and Velcro bag (later models transitioned to CR2032 cells). Many players prefer the higher headroom of the 9V system.
• Installation Documentation: Includes the original EMG instruction sheet in the older layout/graphics, confirming this is an early-production kit.
• Kit: Includes the pickup, Ultrajak, battery clip, pouch, wrench, and manual — a rare find.

Included:

• EMG ACS Active Soundhole Pickup
• Ultrajak endpin jack assembly
• 9V battery clip & Velcro pouch
• Allen wrench (polepiece adjustment)
• Original EMG installation sheet

Notes for Collectors & Players:

The EMG ACS has remained in production for decades, but early kits with the Ultrajak + 9V system are becoming increasingly hard to find. Many players consider these first-generation versions the most robust, thanks to their headroom and classic EMG preamp voicing. If you’re looking for a functional player’s tool with collector’s pedigree, this ACS kit checks both boxes.