The evolution of the chorus effect seems to have gotten stuck in '80s pop, along with over-processed guitars, cheesy synths and popped collars. This ain't that kind of chorus. When Tech21 designed the Boost Chorus pedals they went back to the '70s, when choruses were rich, smooth and manly. They figured out what made these vintage stompboxes sound so good and poured that knowledge into a new kind of chorus pedal with greatly improved performance and a whole slew of never-before-heard sounds. Slapback, echo, flanging and doubling effects are all possible from the modestly named Boost Chorus pedals.

Because of the way traditional chorus pedals typically interact with their amps, most bass players would rather put an angry badger on their pedalboard. The Boost Chorus Bass avoids seasick tones, and badgers, through a specially-tailored design. It features the same control set as the standard Boost Chorus, including the Multi Voice switch, but differs in having a Detune control in place of the Pre-Delay. The Detune control adjusts the pitch of the choral voices, adding sonic girth to create thick, lush, bass-perfect chorus. Speed and Depth controls add modulation, so at minimum your fundamental notes are preserved. Finally, a chorus that works in harmony with your bass.