FlexWave120H is the perfect stage guitar stack top for the pro or semi-pro gigging musician who needs driving power, multiple channels and built-in effects. Its FlexWave™ Evolution 5 preamp uses patented Sequential Cascading Gain™ technology to pump 120W of fat, driving tone through your speaker cab. Variable 3-channel operation allows you to switch among crystal clear clean, red-hot overdrive and screaming high gain channels from the included remote. A built-in tuner ensures you're constantly in tune. With DSP effects, Channel Tracking of effects settings, and a proprietary Shape Control circuit for creating wicked custom leads, it's suited perfectly to the Crate G412A/B 4x12 cabinets.