Keeley RK2000 Funk Siren Delay PedalThe RK2000 Funk Siren Delay is the first ever pedal recreation of the vintage DM2000 rackmount delay that Trey Anastasio has used since 1984. Treys Funk Siren is a technique in which a one second delay actually loops a phrase. Similarly, the RK2000 delay pedal captures delay like loops with infinite repeat, while freeing you to improvise on top. Switching the pedal in and out of Hold mode builds intense layers of sound within your loops. In essence,