I'm gonna intentionally avoid some of Michael's points, because he's right, but in these situations people are describing, there's more to the story.
Originally Posted by Viventis
What are the typical volume dial levels you use for music and movies? My old RX-V740 would be blasting at -30, but my newer, more powerful 765 sometimes gets down to -10 or -15 for movies with the same speakers. I can't even tell you whether or not the 740 had a positive end of the dial.
Once again, I had to experiment to answer one of my own questions. I had to unbox the 740 to check. The volume dial of the RX-V740 max's out at 0.
And here's why I am avoiding his points. On my system, I feed it with an HTPC. I've had my receiver for a few weeks now, but it so happens my projector died the day before it arrived. So I've not used it much.
When I first started with it, volume from my SP/dif was anemic. I was turning the volume to -10 for general listening levels. It was so bad, I sometimes approached 0, but the hissing in very quiet passages was quite noticeable. I knew something was wrong. After messing with it a bit I asked on the HTPC forum and Renethx fixed me up with a fix. Since, I set my default-on-volume to -45 and run most of my movies around the -30 to -35 range. Some even as low as -40 now. It was the level of my output that was hosed up, and my ATI video card HDMI was a joke. His fix with ReClock worked wonders and I don't even know how.
Music I run in 7 channel enhanced mode, and if I get much higher than -30 there, it's really crank'n. Beyond what I call comfortable listening and I've been a metal rock'r since the early 70's listening to some pritttt teee loud stuff. Gets me thinking back to my first receiver, a HeathKit. What a machine! I still own it I think, might be on the attic.
Originally Posted by MichaelJHuman
I have never seen that high of power draw in my testing. The amp was likely clipping at that point.
I had to go outside to tell if it was or not, I was curious. It sounded fantastic from outside the house. Even my JBL Sub wasn't clipping. I have no neighbors to speak of and it's a good thing.
It's nice to know the power supply can draw that much power without shutting down though.
My receiver's (Z7) max power draw is rated at over 1000 watts I think. I don't think I have ever measured more than 200 watts of power draw.
How large a drivers are you pushing and how many? This was a test now, I would never listen to this thing there and certainly would not run it like that for long. I think I was playing Firehouse - Lovers Lane when I did this in 7 channel enhnaced mode. Not playing a 7.1 DD movie. I think the content need to be pretty strong to pull that sort of power. The NY Symphony Orchestra isn't gonna get it done.
Originally Posted by Pyro2
While your interested in how much power can be consumed, I'm interested in the opposite: Idle and Standby power. I have become very sensitive to how much power devices are taking when turned off. Can you measure the standby power and idle power (unit on but not sound muted). I have been comparing this to the Onkyo's and Pioneer. I eliminated Onkyos due to their excessive idle and standby power.
Idle Power on mine is about 42 W. Standby is hovering at 0 - 1. So, I am assuming that means .5w. WAY better than the Kenwood it replaced which pulled 11 or 12. Now, I should qualify these numbers and say to you that I have no display. My red light is off as I speak, so perhaps this means the receiver is really off, not in standby. If that's the case, I'll have to wait till I have my projector back to get a good number on that. Suffice to say though that no matterer what it does, the power it uses is less than the 12yr old Kenwood I had. Idle on that was 49W.
I should also say, normal listening volumes for me have the unit pulling about 55-80 watts, depending on what mood I'm in. I seriously doubt I'll ever have guests here and have it hit 100w from the wall. I also seriously doubt I'll have it pulling 200w for any period of time. 500 is just insane. For anyone who'd like a good laugh, my cat lay sleeping on the floor in the next room during that test. He's heard some metal before!
I also have heard that v665 owners have to turn up the volume knobs to much higher dB levels than their previous Yamaha receivers. How would you compare these receivers to your past? It -20dB roughly same volume level?
My Kenwood VR-307 I think it was, had a volume scale much like this 765. It stopped at 0 though. I'm gonna say that receiver also rated at like 90w/Ch x5 showed near exactly the same volume levels to be comfortable. I never got near 0 with that, and I won't with this. -10 was blasting, and -20 was inordinately loud. -30 was all you wanted in a movie like Transformers or Independence Day. -35 to -40 was overall about normal.
I can't wait to get some new speakers for this thing. I have a few picked out but I have been spending money like a drunken sailor lately and simply have to stop. I would think that in the next 3 months or so, I'll have a new set of fronts and front presence speakers for this baby. If I get the fronts I'm looking at, guys on the west coast might be able to hear this baby!