4-string · Neck-through-body
Epiphone Rex Brown Thunderbird Bass. 4-string bass. Neck-through-body construction. Mahogany body. 9-ply Okoume (Gaboon Mahogany) or Sapelli (Sapelli Mahogany)/Walnut Neck-through-body neck. C neck profile. Indian Laurel fingerboard. 20 frets (Medium Jumbo). Scale length 863.6mm / 34.0in. Nut width 41.0mm / 1.61in. Pickups: ProBucker 760 Bass Nickel Cover Plating. Controls: 2 Volume, Master Tone; Passive Electronics. Babicz FCH 3-Point with Epiphone String Spacing bridge. Tuners: Gold Die Cast with Mini Clover Buttons. Epiphone is Gibson's more affordable sister brand.
| Construction | Neck-through-body |
| Strings | 4 |
| Body | Mahogany |
| Neck | 9-ply Okoume (Gaboon Mahogany) or Sapelli (Sapelli Mahogany)/Walnut Neck-through-body |
| Fingerboard | Indian Laurel |
| Neck Pickup | ProBucker 760 Bass Nickel Cover Plating |
| Bridge Pickup | ProBucker 760 Bass Nickel Cover Plating |
| Controls | 2 Volume, Master Tone; Passive Electronics |
| Bridge | Babicz FCH 3-Point with Epiphone String Spacing |