So X-710v

[Pancakes™]

heyy all,

just got a question.. not really a biggie, but im just curious, when im watching 5.1 DVD's in AC-3 input on the amp, the globes/valves dont heat up as much. but theres more sound going through it, if that makes sense.

when im playing music through the computer on the MP3 Input on the amp, the globes/valves heat up more than watching a movie.

why is this??

 

[Lordoftherings]

Input/Output, Voltage, Impedance, Sensitivity = Current bias.

There is less output voltage coming through the outputs from your computer,
so your amp has to work harder to amplify that signal. And you have to turn the volume level up to match the same level as your DVD player.

And DVD DD soundtracks are recorded at a higher level than MP3 in the vast majority of cases.
Your DVD player has also a higher voltage output from it's digital output than your computer. So, even at low volume level, the sound is loud and your amp doesn't have to work as hard to amplify it's signal.
And if you are connecting your computer through the analog inputs of your amp, even more reason for your amp to heat up more from a lower output voltage.
The digital and analog input impedances of your amp have also different values.

Is that make any sense to you?

Bob