The Peavey Tour 450 Bass Amp Head offers tons of power plus extensive tone shaping tools, such as bright and low-cut switches, active high and low shelving controls, a contour control, and a 9-band graphic EQ configured to target critical bass frequencies. Its also includes a Peavey-exclusive sub-harmonic generator with level control and footswitchable bypass that adds a note one octave lower than the original note, creating interesting harmonic textures and a significantly enriched bottom end. The Tour 450 delivers 450W RMS into 4 ohms. SmartRail technology, a new patented Peavey power-amp topology, makes it possible for the Tour Series to deliver its massive dynamic power with increased efficiency and lighter weight. In addition, the XLR-equipped direct out allows traditional patching to a front-of-house or studio mixer, but features fail-safe phantom power backup that sends a flat signal through the house P.A. or studio console.