I'm kinda new here, and looking into getting speakers for an HDTV. Probably HTiB, but I figure you folks in this particular Audio room might know this subject best...
I really admire power efficiency in general, and loved the fact that, e.g., LED HDTVs are only, say, 75 Watts for a 55" 1080P, when plasma and especially projection use so much more power...
Anyway, I happened to look at specs for a HTiB which said something like:
Power consumption when On: 170 W
Omg, right? Hehe. But if you've looked at many power specs in manuals, you know that the engineers often just cite theoretical max usage in the specs (so you don't underestimate wire gauge). Especially in the case of speakers and audio, it may not have much bearing on what the true average consumption is liable to be. There's also the chance of being mixed up by the fact that speaker measures (as opposed to rec/amp) are always made in (peak) watts; indeed, that's the speakers' main statistic, and you might have 6 to 8 speakers in a HT.
So what's really needed is real-life measurement of receiver/amp consumption by something like a Kill-A-Watt.
FYI, we intend to have a very modest system. It's just the wife and I at the exact same place on the couch 99.99% of the time, so we just need a very modest system (hopefully $300 range). We will not be shaking the shelves much.
I am really asking two questions:
1) What's the true average power consumption liable to be over time for a modest rec/amp/HTiB, usually at moderate volume?
2) What power-saving features are there these days? For example, I saw one that said it would go to standby if there was no sound for 30 minutes, although I have to wonder how does it really know if there's no sound. (Can't it just detect when input devices are Off, nowadays, and immediately go Standby if everything is Off?)
We took forever to move up from an old-school 27" GE CRT TV to a 55" HDTV and were pleasantly surprised that it only needed 75 W... now I am shocked to find that the audio side of the HT equation is very deep, and might even cost more than the TV ($800) in both dollars and watts!!
Thanks if you can help,