Flexible, Affordable, Compact Keyboard Amp The Vox VX50 KB is a 50-watt keyboard amplifier with Nutube circuitry that delivers tube-like sound in a cool-running, highly-portable package. From the sparkling high range of a piano to the low-end punch of a synth bass, the VX50 KB's single coaxial speaker delivers impressive full-range sound in a compact bass-reflex cabinet. And equipped with three channels, the VX50 KB can handle your most complex setups. GearNuts's advice? If you're looking for a flexible, affordable, and compact keyboard amp, give the Vox VX50 KB an audition.Vox VX50 KB Keyboard Amp Features: Nutube circuitry delivers tube-like sound in a cool-running, highly-portable package 50-watt amplifier and coaxial speaker Specially-optimized bass-reflex cabinet helps reproduce rich low-frequency content 3-channel input handles complex connection requirements Includes power supply