MK33 is an unusual speaker. It indicates the direction for you. Let's take a look at its unique features: an 18-inch unit in front, a 15-inch unit in the post. In the bi-amp mode of operation, different radiation characteristics can be produced with the corresponding presets. The heart-shaped radiation pattern is the greatest possible attenuation of the energy behind it, which can attenuate more than 15 dB of sound pressure over the entire low frequency spectrum. While the end-shot mode can maximize the energy in front of the front part of the weakened behind the energy. Because of this directional low-frequency settings, making the sound more robust and have a sense of music, in a lot of reverberation of the sound field, which is particularly significant.