Behringer-Ultrabass-BX4500H-Bass-Amplifier-Behringer-BX4500H-P-The-Behringer-Ultrabass-BX4500H-bass-amplifier-gives-you-a-massive-450W-amp-head-with-a-switchable-Ultrabass-sub-harmonics-processor-for-unbelievable-low-end-power-&-a-revolutionary-Shape-filter-for-extreme-sound-range-P-P-Since-flexibility-has-become-a-particularly-important-factor-in-the-music-business-in-recent-years-modern-bass-players-need-to-offer-a-broad-range-of-sounds-but-should-still-be-able-to-play