Check the listing for details. TC-Helicon Harmony V100 100-watt 2-channel Acoustic Amplifier. Condition: New. Listed at 729.00 USD. An Acoustic Amp with Topflight Vocal Processing Ready to deliver the performance of your life? Then hit the stage with TC-Helicon’s Harmony V100. This 100-watt, 2-channel acoustic amplifier produces crystal-clear sound by way of a 10-inch Tannoy speaker. What’s more, its exclusive top-firing tweeter projects the sound both at you and at your audience. The V100’s voice channel is teeming with TC’s acclaimed vocal effects (including 2-part harmonies), and the guitar channel boasts a must-have cache of powerful sound-shaping tools. A built-in looper makes practicing and developing ideas a breeze while giving you a state-of-the-art performance enhancer. Dual XLR output jacks with flexible routing put you firmly in the driver’s seat, while a USB output makes direct recording a piece of cake.