The four-string TRBX304 and TRBX504, along with the five-string TRBX305 and TRBX505 feature a five-piece maple/mahogany neck along with balanced and lightweight solid Mahogany bodies. The 500-level basses are equipped with a 3-band Active EQ Control that can also be turned off for passive play. The 500 Series also includes new H5 dual-coil pickups and a Battery Alert LED. On the 300-level models, a Performance EQ Switch offers five performance-tuned full-spectrum EQ curves.
Their newly designed M5 hum-bucking pickups also feature built-in thumb rests. Retail price: TRBX304 ($550), TRBX305 ($620), TRBX504 ($790), and TRBX505 ($860).
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