EBS is one of the premier builder of effects for bass and the UniChorus is their chorus/flanger/modulation effect, with a circuit designed specifically for the lower frequencies of the bass range. It lets you switch between low-noise, studio-quality chorus, flanger, and pitch modulation effects. Premium analog circuitry gives the UniChorus a smoother, warmer, and fatter chorus/ flanger effect. It has Depth and Rate controls plus stereo output. It use noiseless FET switching and is equally at home in the studio and on stage – and it’s definitely built for road use Quality effect for the pro bassist for just $145.