4-string · Bolt-On with Graphite Reinforcement and Scarf Joint
Ellefson's signature red pinstripe finish, bolt-on bound maple neck with 21 jumbo frets and block inlays, EMG® pickups, two volume controls and three-band active EQ, Jackson HiMass™ bridge and Jackson die-cast tuners.
| Construction | Bolt-On with Graphite Reinforcement and Scarf Joint |
| Strings | 4 |
| Body | Basswood |
| Neck | Quartersawn Maple |
| Fingerboard | Maple |
| Neck Pickup | EMG® HZ35N |
| Bridge Pickup | EMG® HZ35B |
| Controls | Volume (Neck Pickup), Volume (Bridge Pickup), Active 3-Band EQ (Bass, Middle, Treble) |
| Bridge | Jackson HiMass™ |
Artists documented playing the Jackson X Series Signature David Ellefson Kelly™ Bird IV Bass: David Ellefson, Don Van Stavern, Jason Newsted.