Saga Musical Instruments produces a four-string bass resonator guitar under their Regal brand name.videos National Reso-Phonic Guitars also produce three models of resonator bass guitar.
Saga Musical Instruments menghasilkan gitar resonator bass empat senar di bawah merek Regal.video Nasional Reso-Phonic Guitars juga memproduksi tiga model gitar bass resonator.