Recent introduction of the UB-28H1 is a huge step forward. With a power handling ability exceeding 600W RMS, 100dB (1w @ 1m) of sensiti-vity, it transcends the norm. Qualified for uses in any environment requi-ring a low profile yet high SPL and high quality audio. Constant direc-tivity makes this unit suitable for horizontal and vertical close mount positioning or offset vectorial ball mount installations.