Product Detail Extremely powerful 450-Watt bass amplifier head Patented* Dynamizer technology for ultimate punch and to capture every nuance of your playing Switchable Ultrabass sub-harmonics processor for unbelievable low-end power Dedicated 5-band EQ with Bright and Deep functions for awesome sound shaping 3 speaker outputs on 1/4" jack and professional speaker connectors (compatible to Neutrik® Speakon® . The "Behringer BX4500H 450-Watt Bass Amp Head" is best product for you. We recommended Behringer BX4500H 450-Watt Bass Amp Head