This three way model delivers emotion, clarity and phenomenal bass detail.
The MB is the mid-sized model in the SE range and delivers all the emotion and clarity of the IB2 with the ability to resolve even greater bass detail; it can produce low-frequency audio down to a staggering 20Hz with ease. The radically engineered Radial bass unit with its immense exo-skeleton offers excellent physical and thermal stability; the cone has a perfect rigid structure, permitting enormous excursions, and the exposed fins act as a heat sink, keeping the coil cool at all times.

Advanced Transmission Line Technology
The source of PMCs legendary natural, realistic sound is the Advanced Transmission Line (ATL) bass-loading technology, professionally proven all around the world.

ATL uses energy generated by the bass unit in a much more intelligent, efficient way than speaker designs based on ported or sealed boxes.