Recording King Guitars brought two new acoustics to NAMM. The Dirty 30s single-0 resonator ($249 street) ) has a spruce-laminate top, rosewood fretboard, 9.5" resonator cone, biscuit bridge with maple/ebony saddle, while the Dirty 30s Harmonella ($199) comes in 0 and 000 bodies with solid spruce tops, rosewood fretboards, a floating rosewood bridge, and a metal tailpiece.