In Stock. 45 Day Lowest Price - 100% Satisfaction Guarantee. The 30th Anniversary Adamas II 1681 incorporates the same features as the original, first introduced in 1979. This unique Roundback design utilizes many Ovation elements that have become industry standards including a carbon graphite composite top, Kaman Bar neck support, and a resin impregnated walnut fingerboard. Features also include a maple/mahogany neck, walnut bridge, gold Schaller tuners, Ovation OPP pickup, and more. Includes a FREE case!