Unfortunately Sony lost a sale to me replacing my 40V4100 (moving it to the bedroom) and buying a new 46 or 52V5100 because they have deleted the option of VARIABLE or fixed audio out. Is now fixed output only. I use the VARIABLE audio output on my living room set to drive a Sony powered subwoofer to enhance the built-in speakers with some bass. Sounds quite good that way, and I don't have to run the AV receiver all day and night just to get a little bass. In the bedroom I use the VARIABLE audio out on an older Sony CRT set I was going to retire to drive a small 35 Watt stereo amp and a pair of small acoustic suspension speakers. Oh well maybe next year's models, or a different brand will offer that feature.