The Sienna 16 is a 16W 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 “hi-fi” in nature. You’ll also find analog reverb to enhance your sound. EQ controls include a feedback filter, which is especially handy for live gigs. The Sienna 16 lets you fine-tune your sound, and then amplify it in a way that brings out your acoustic’s best qualities.