Renaissance RB4 Standard 4 String AmpliCoustic Bass Guitar Natural Redwood (781)New Rick Turner Renaissance RB4 with a fabulous wide flame Redwood top in stock. These basses provide a rich palette of tones from realistic upright to cutting rock. They deliver a much broader frequency range than traditional basses. Models include 4 string 34" scale and 5 string 35" scale with fretted or fretless fingerboards. Thomastik Infeld Acousticore strings deliver melodic, punchy tones right down to a thunderous low B. All weighing in at less