Line voltage is 116 not 120 why?

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

Kij, Yes there are many SMPS which run at a wide range of voltage. My charger for my Canon camera will run on anything it'll plug into. anywhere. NO DC.

But, in general, is it true that lower voltage makes for higher current draw? If your PS draws 1 amp at anything from 85 to 265 volts, that would make it 85 to 265 watts, if it was a pure resistive load (I'm sure it isn't)
But, for 100 watts, the current would vary from 1.2a to 0.4a for the same 'power' in watts.
I don't know the answer.

Magfan - No, lower voltage doesn't make for higher current draw (it happens in SMPS) but only limits max peak power. Amp in a sense is a regulated supply that delivers required (at given moment) voltage to the load (speaker). If it runs out of available supply voltage it will start clipping. If you don't use whole available power then line supply voltage change won't affect you.

What amp takes from mains is completely different story and depends on type of amps. For class A amps it will be constant current while for class B it will be just a few percent of max rated power of an amp. The reason for that is that music has very low average value and scale is logarithmic. When sound level is at 1/2 of max loudness amp takes 1/10 of max power.

Linear power supply takes current from the mains in very narrow spikes of high amplitude. It is in a sense SMPS that operates at 120Hz. Width of the spike depends on the current demand but also on output impedance of transformer and ESR of capacitors (Schaffer diagrams). It is called conduction angle. Because of that transformer has to be oversized (RMS power required is much higher than average power taken + high frequency content is heating the core) and power supply wiring and cords have to be oversized to avoid drops.

Linear power supply is therefore pretty noisy outside and using shielded power cables is needed.