100 watts bass amplifier with 2 x PJB PIRANHA TYPE B Speakers. Channels: 1 , EQ: 5 band EQ, limiter, Connections: Active/passive input, headphone out, DI out, pre-amp out - Volts: 115 or 230V AC or 12V DC - Dimensions (HxWxD): 6.7×17.3×15.5 inch (W×D×H)" - Weight: 28 lbs. The briefcase was developed for the bassist who needs a high performance practice amp that does not limit their playing ability. It provides rich deep tones that are usually associated with much bigger boxes. The dynamic mid-range and high frequencies come through with incredible transparency. The two dedicated 5 inch drivers were specifically designed for the briefcase, along with the high current 100-watt (RMS) amplifier. The ability to run on AC power or battery results in a highly portable and compact package that is truly flexible for the player or environment.