4-string · Neck-Through-Body
30th Anniversary, Concert™ Bass, poplar body with ergonomic contours, through-body quartersawn maple neck, graphite-reinforcement rods, 12-16 compound radius laurel fingerboard, EMG® P and EMG J pickups, three-way toggle switch, single volume control, two-band EQ, Jackson HiMass™ 4-string bridge, Quicksilver finish, all-black hardware, pearloid sharkfin neck inlays, Jackson's signature pointed 4-in-line color matched headstock, black Radiation logo, Ellefson's signature
| Construction | Neck-Through-Body |
| Strings | 4 |
| Body | Poplar |
| Neck | Quartersawn Maple |
| Fingerboard | Laurel |
| Neck Pickup | EMG® P |
| Bridge Pickup | EMG® J |
| Controls | Volume, Two-Band EQ (Bass & Treble) |
| Bridge | Jackson® HiMass™ |
Artists documented playing the Jackson X Series Signature David Ellefson 30th Anniversary Concert™ Bass CBX IV: Alex Venturella, David Ellefson, Greg Christian, Hayden Tree, Jason Newsted, Jeff Pilson, Milkie Way, Rex Brown, Ryan Neff, Sean Yseult, Shane Crump, Terry Butler, Travis Haley.