The AC1M features hand-selected premium solid Sitka Spruce tops and Mahogany back and sides. Yamaha’s original concert-size body style perfectly complement the A-Series elegant looks while the System 66 preamp and SRT pickup ensure solid plugged-in performance. Concert Body Cutaway Solid Sitka Spruce Top Mahogany Back & Sides Cut-through Pickup Sound High Comfort Neck Profile Simple and Distinctive Looks