Powerwerks PW15 Speaker Cabinet at DC Music. Thank you for your interest in the Powerwerks PW15 Speaker Cabinet. Powerwerks PW15 Speaker Cabinet. The Powerwerks® PW15 speaker cabinet is a rugged performer that puts out big, punchy lows and clear, present highs – perfect when you need a little extra kick in your mix! The PW15 handles 100 watts RMS (200 watts Peak) and features a heavy-duty Powerwerks 15-inch P.A. speaker with a High Frequency Driver. As with all Powerwerks cabinets, it's built to last thanks to our time-tested construction methods, a tough vinyl covering, oversized handles and corner protectors. Stand-mountable.