Radial Engineering will be debuting its new dual-mode Vienna chorus pedal at the NAMM show this week. This latest addition to the Bones line sports two independent channels with individual speed and intensity controls. With two footswitches, the Vienna can be bypassed, activated and toggled between channels quickly for on-the-fly effects. The pedal also is equipped with Turbo Mode to produce extreme chorusing effects. The pedal requires a standard 9V power supply. The Vienna Chorus will ship later this month with a street price of $159.99. Additional info on this and other Radial offerings from NAMM a little later this week.