Monster MP HTS 5100 SS MKII Signature Series Home Theater Reference PowerCenter Dimensions: 3.88" H x 17.13" W x 14.63" D; weight: 20.88 lbs. Monster Clean Power Stage 4 v.2.1 circuitry filter dramatically reduces electronic noise. T2 automatic disconnect/reconnect protection circuitry. Tri-Mode power protection circuitry with audible alarm and auto disconnect. 6814 joule rating provides a high level of surge absorption.