I have always wanted to try a gb Streamliner 900. I am running a fEARful 12/6 +12sub stack. I do find I need a fairly loud amp as it seems I push my amps pretty hard. Tonally, I think I'll dig it as its been described as warm and smooth which is totally my thing. I guess my main concern is volume as genz benz amps I have owned previously (shuttle 6.0 and shuttlemax 6.0) seem on the quiet side for their wattage ratings. So, how loud are these amps?