"The Marshall MBC410 Bass Guitar Extension Cabinet, has a 600W RMS rating, and 4X10"" speakers. It's a superb, colossal-sounding bass cabinet, ideal for use with Marshall bass amp heads and combos.The Marshall MBC410 is loaded with four 10"" speakers that deliver clear, low-end tones throughout the club. It also has an HF horn and is sturdily built, ready for life on the road. Marshall listened to bass players' requirements, and made the decision to give you options of the most favored and asked-after extension cabinets to complement your bass head or combo. This extension cabinet can be used with the Marshall MB450H amp head as well as the range of Marshall MB bass combos and is finished in Marshall black textured vinyl with a black speaker grill.Superb, colossal-sounding bass cabinet, ideal for use with the Marshall bass amp head and comboCabinet Type: Bass reflexSpeaker Configuration: 4x10""HF HornHF Horn switchImpedance: 4 OhmsPower (RMS): 600 WattPower (Program): 1200 WattSpeakon connector x 11/4"" jack speaker connector x 1"