This 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 has really nailed the tone and power versus portability issue. The MB58R 122 ENERGY features 2x12" Markbass Neodymium custom speakers and 1" driver with horn; it weighs only 17.5 kg, with 800 W (RMS) of power handling, punchy low-end and incredible definition in the highs and mids, this cab is a great choice for lovers of a full, flat-response tone! 4 Ohm version.