Left handed bass. The B4 Plus AS offers uncompromising quality for the discriminating musician with high value and performance. Featuring bolt-on construction for a warm open sound with great sonic dispersion, The B4 Plus AS is the modern bass with classic features and sound. The trademark Bartolini sound is preserved in the MK-1 while providing superb sound quality and value. The MK-1 delivers plenty of punchy and warm mids along with transparent and brilliant highs for a superbly balanced sound. The Markbass MB-1 EQ provides a very natural and transparent boost that does not color the organic nature or resonance of the instrument's woods. The crystal clarity and natural warmth combined exude a passive feel with smooth lows, full-bodied mids, and bell-like highs. The Markbass 3-Band EQ brings out the best acoustic nature of the bass instrument. The emphasis of the Wenge and Rosewood combination is on tight and defined midrange that complements the bright and expansive tonal nature of the Swamp Ash body for an ideally balanced sound to round out the bass spectrum. A livelier and more resonant wood than poplar, swamp ash is characterized by a scooped-mids sound with a bigger low-end and clear highs for a more balanced tone. The open-pore finish enhances the resonance even further and the wood's natural light weight and good-looking grain patterns are other positives of swamp ash. An ideal match for the Markbass 3-Band EQ system. The new matching headstock provides a tasteful and classy visual aesthetic for an ungraded high-end look and feel. The Artisan B4 Plus AS features Hipshot Ultralight Tuners as standard equipment for tuning accuracy and stability. Finish: Open Pore Natural.