DESC: The Sienna 16 is a 16-watt combo amplifier with an 8" speaker that is specifically designed to reproduce and enhance the natural sound of your guitar or other acoustic instrument. The approach is more "hi-fi" in nature. You'll also find analog Reverb to enhance your sound. EQ controls include a Feedback filter very handy for live gigs. The Sienna 16 acoustic amplifier lets you fine-tune your sound, and then amplify it in a way that brings out its best qualities.