Line voltage is 116 not 120 why?

Mostly I have 118. During peak demand of summer, it'll droop as low as 115.

Lower voltage implies higher amps for same power.

Magfan - Not necessarily. My amp (Rowland 102) has SMPS and produces the same maximum power for supply voltage 85-265V.

Kijanki,
Off topic, just curious if you ahve your JRDG 102amp powered up directly from the wall or power conditioner?

Nasman - I had it powered from the wall but recently I added Furman Elite PF20 conditioner. Rowland is plugged into high current bank of outputs. It removed bass resonances (nodes) while not affecting dynamics and opened midrange a little (Furman supposed to increase available peak current to 55A). I'm not sure if midrange is due to Rowland or Benchmark DAC1 (that drives it directly) that is also supplied thru conditioner. It could be that bass resonanses were masking midrange. The really strange thing is that TV picture got cleaner, brighter and more vivid (stronger colors). Furman supposed to correct for power factor and TV is DLP (projection). Maybe just bulb is brighter now in addition to digital noise reduction (HDMI).

Hiendmmoe - Amplifier will be louder at 120V (unless is regulated) than at 116V by less than 2%.

(120^2/116^2)^(1/3.5)= 1.0195