YOUR BEST SOURCE FOR PRO AUDIO GEAR. PDP Pacific Drums & Percussion PDDPCO Double Bass Drum Pedal, Drumsticks, Cloth. PDP Pacific Drums & Percussion PDDPCO Concept Series Double Bass Drum Pedal. Designed in California by Drum Workshop for optimal playability, the Concept Series Double Pedal is a boutique-inspired machine that’s quick and responsive. The pedal’s design is outfitted with a dual chain concentric drive system, smooth cast extended footboard with integrated needle bearing hinge, single post auxiliary pedal, telescoping linkage with universal joints, and an offset toe clamp. PRO MARK TX5AW HICKORY single set.