I received my new Hartke LH1000 on Tuesday. Great amp and love the tone connected to my two RS210T cabs in bridged mode (8 Ohm cabs). I have the EQ at 3-10-0 with my Lakland 44-60 Jazz wired series, it sounds killer with that EQ setting. Brite and Limiter are off. The issues: Sometimes the amp will have no sound when powered on. The power LED is lit and I hear the click but get no sound. I power cycle it and sometimes it will work fine or still no sound. Other times it powers up fine and I get sound but I get a very loud electrical hiss with a intermittent crinkling of paper sound as best I can describe it. Sometimes it powers up and works fine, I get sound and it is quiet, no hiss. I have also had the amp work fine then after a while of playing it starts making that electrical hiss and that crinkling of paper sound, then the sound drops totally out. Power cycling will sometimes resolve this but I an concerned this might happen at a gig. Thanks in advance for any insights. I am going to call Samsontech as well. I've heard they have great customer service.