i just noticed a background hiss with my semi-new kenwood vr-407... im not sure if it has always done this, but i havn't noticed it until recently. i have paradigm titans in front and klipsch promedia speakers (from my computer for rears. the klipsch in the rear are small satelites and probably have lower impendance than the normal 8 ohms, and i have noticed that they pick up a lot more hiss than the titans in front. while in stereo i can barely notice the hiss unless i put my ear right beside the titans. also, from -31 dB headroom to -30 dB on the receiver volume control, a much greater amount of hiss is introduced. it is present at lower volume, but when i change it from -31 to -30 the hiss doubles in volume. that seems very strange to me.. as if the receiver is just crapping out. are any other kenwood receiver owners noticing this or has my unit gone bad? since i got this unit from onecall.com it has had a humming noise while its turned on (not from the speakers, because the quiet hum is present when no speakers are connected). if the hum and hiss are only a problem on this unit, i may just try and get it fixed under warranty, otherwise, i might upgrade to an onkyo 494. the kenwood has been fine though for the most part, and quality and volume of sound seem top notch ..