XTR-500 Speaker System, The Gemini XTR500 is a complete mobile speaker solution which is easy to transport, but seriously heavy in performance, The centre piece of the the kit is a self powered 15" subwoofer with 230 watts (rms) of low end rumble. Combined with two 10" satellite speakers, also powered from the active subwoofer, the xtr500 will shake even the hardest of dance floors with a well defined total of 400 watts (rms), Intelligently cooled, completely self powered and so easy to set up with connecting leads and wheels for added convenience, Gemini serve up a really impressive and professional complete sound solution with the xtr500.