The SIENNA 16 PRO acoustic instrument amplifier can take your sound farther than ever before. With its attractive tan covering, leather handle and real wood control panel, the SIENNA 16 PRO combines good looks with great tone. The speaker has a flatter, Hi-Fi type response that perfectly suits the wide frequency and dynamic range generated by acoustic instruments. The result is a more natural less "electrified" sound. The new speaker design retains the unique harmonic content of the instrument and contributes quality to the sound of the new SIENNA 16 PRO