The Ampeg PN-410HLF Speaker Cabinet is a high performance and robust 4 x 10" 850 watt bass speaker cabinet with an impedance of 8 ohms that incorporates four powerful 10 inch custom made Eminence neodymium LF drivers to deliver a frequency of response of 38Hz to 10kHz which provides ground rumbling bass response whilst the addition of an adjustable volume 1 inch eminence high frequency driver provides clarity and pop making the PN-410HLF perfect for versatile bass players requiring a fantastic sounding portable and professional 4x10" bass speaker cabinet.