Roland Clan Forums

I recently acquired one of these units, and instantly fell in love with the Chorus. (Never had a Chorus unit at my disposal.) My question is how the parameters are set- do any of the knobs affect the Chorus, or is it set to a unchangeable cycle speed/delay/depth/etc.? It's really hard for me to hear any changes when using the knobs, (as it pertains to the Chorus.)

Thanks in advance,
Dave