The BW Nautilus 805 speakers, with Tweeter on top technology, ensure three dimensional presentation of sound while maintaining sound focus. Kevlar speaker cones of this BW Speaker reduce undesired standing waves. Flowport technique of this bookshelf speaker prevents distortion at high volume. The 88 dB spl sensitivity of the BW Nautilus 805 provides audible and clear audio, even with the volume dial at low. The Matrix construction of this BW Speaker ensures best sound quality. With a frequency response of 56Hz - 20kHz 2dB on reference axis, this bookshelf speaker reproduces a wide range of frequencies. The 2-way vented-box system of the BW Nautilus 805 plays loud music.