HomeForumsDiscussionPopular TopicsUltrasonic pickupsFree Ultrasonics Manual Guitarsite › Forums › Discussion › Popular Topics › Ultrasonic pickups › Free Ultrasonics Manual December 6, 2020 at 3:03 am #113802 AnonymousGuest https://www.jcfonline.com/forum/equipment/amps-and-effects/70406-ultrasonic-pickups?p=2541870#post2541870