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 104 ENERGY features 4x10" Markbass Neodymium custom speakers and 1" driver with horn, boasts an impressive 800W of power handling and weights 36.4 lbs / 16.5 kg . This cabinet works great on its own, plus the 8ohm version makes up an amazing stack when added to another Markbass 8 ohm cab (for example, another MB58R 104 ENERGY or a MB58R 151 ENERGY).