The MB58R series is a further example of how Markbass is always one step ahead in innovating using state-of-the-art technologies. Once again Marco De Virgiliis with his pioneering soul has managed to create this new series of products which, with the use of custom components born thanks to years of experience and research Markbass and the use of revolutionary materials with an eye to the future and the evironment, has really nailed the tone and power versus portability issue. The MB58R 102 ENERGY features 2x10" Markbass Neodymium custom speakers and 1" driver with horn, and it weighs only 24.5 lbs / 11.1 kg thanks to the revolutionary enclosure material. This cabinet works great on its own, plus makes up an amazing stack when added to another Markbass 8 ohm cab (for example, another MB58R 102 ENERGY or a MB58R 151 ENERGY).