The Geddy Lee Amalgamation Signature Chorus, as one would expect, is specifically tailored for bass. And specifically, with Geddy's valuable input.

Housed in a compact pedal, the Geddy Lee Amalgamation offers an unusual amount of flexibility to achieve a variety of choral effects. It is capable of recreating the kinds of choral tones typically attainable only in a pro studio. With its Detune control, you can adjust the pitch of the choral voicing, adding sonic girth to create thick, lush, bass-compatible chorus. Engaging Deviate mode alters the Detune function and adds an additional voicing for even more depth --as if 3 people are playing at the same time.
Other features include Speed and Depth controls to adjust the modulation, from sober to slightly tipsy to downright "wobbly." Operable with 9V alkaline battery (not included) or optional DC power supply.