BUGERA BXD15A 1000-Watt 2-Channel Bass Amplifier with 15" Turbosound Aluminum-Cone Speaker Black Powerful 1,000-Watt amplifier with wedge-shaped cabinet World-famous, British engineered 15" TURBOSOUND aluminum-cone speaker Revolutionary Class-D amplifier technology: enormous power, incredible sonic performance and super-lightweight High-voltage MOSFET preamplifier gives you the sound and feel of an authentic tube amp Classic compressor increases sustain and smoothens out volume peaks when playing dynamic slaps