richardsim7
Distinguished Member
Well the bad news is you weigh 0.4kg more than you thought you didSo my bathroom scales were quite close.
Well the bad news is you weigh 0.4kg more than you thought you didSo my bathroom scales were quite close.
It's a good point to compare the sizes of the power supplies. But, not all of the power that gets drawn from the electric socket will be transferred into raw power for the speakers (inefficiency). Plus you have to take into account the power used by the AVR for the pre-amps and the video processing.If you look on the rear of an a/v receiver/amp. under the voltage it gives you the figure in watts of its total power consumption, divide this by the number of its channels and you'll get its maximum output in watts per channel (as near as makes no difference) at approximately 0.1% distortion.
Incidentally the SR8012 only has 70 watts more than my recently purchased 9.1 SR7011
That defeats the purpose for a lot of buyers looking for a one box solution. Power ratings, at the end of the day, are only numbers. A proper demo will tell you whether you're happy with it or not.Until these companies get tested independently, not much point spending £2,700 on this amp in my opinion, better off getting a cheaper receiver and power amp(s) so you actually know the power is real.
That's weird, I link to the sound and vision bench tests quite often, I haven't checked back, but I wonder if all those links have been editied out?Disappointed that my post been edited and the real power rating have been removed.
I had posted power ratings for the SR7011 as tested by another website, and this showed that the claimed power ratings for it were no where near the actual truth.
For anyone who wants to see them- please google '7011 test bench'
Until these companies get tested independently, not much point spending £2,700 on this amp in my opinion, better off getting a cheaper receiver and power amp(s) so you actually know the power is real.
It's a good point to compare the sizes of the power supplies. But, not all of the power that gets drawn from the electric socket will be transferred into raw power for the speakers (inefficiency). Plus you have to take into account the power used by the AVR for the pre-amps and the video processing.
For this AVR a 780 watts power supply to drive all of that plus 11 speakers seems like some headroom may be lacking for soundtracks with a lot of dynamic peaks.
Disappointed that my post been edited and the real power rating have been removed.
I had posted power ratings for the SR7011 as tested by another website, and this showed that the claimed power ratings for it were no where near the actual truth.
For anyone who wants to see them- please google '7011 test bench'
Until these companies get tested independently, not much point spending £2,700 on this amp in my opinion, better off getting a cheaper receiver and power amp(s) so you actually know the power is real.
That defeats the purpose for a lot of buyers looking for a one box solution. Power ratings, at the end of the day, are only numbers. A proper demo will tell you whether you're happy with it or not.
're the power output figures quoted above: For comparison, my AVC-A1XVA has a power consumption of 850W and a quoted 170W per ch. at 0.05% THD.
It's loud, even through my inefficient transmission line speakers.
I wouldn't say it necessarily sounds 'better' than the X7200 because that can be very subjective but the SR8012 does sound a little warmer for want of a better word. Whether you like that is a matter of personal taste but I actually own an X7200 and I think it has a more muscular presence when it comes to movies but I'd give the SR8012 the edge when it comes to music.
The X7200 seems to have a bit more headroom and thus more dynamic range but in fairness to the SR8012, the Denon is only 9-channels so to run a full 7.1.4 setup you'll need to add an extra two channels. I use a separate power amp to run the front left and right channels.I have a feeling the Denon sounds a bit more neutral from what you say, it's a tough choice choosing between the two. I always think a neutral sound makes more sense as it lets the listener hear what the audio track is meant to sound like rather adding something. When you say "muscular" do you mean the Denon has a heavier/thicker sound? Marantz sound is leaner? Which one has the tighter [more accurate/detailed] bass performance?
Do any of these models have an audyssey flat [to use after calibration of course]setting so there is no high frequency roll off with movies?The X7200 seems to have a bit more headroom and thus more dynamic range but in fairness to the SR8012, the Denon is only 9-channels so to run a full 7.1.4 setup you'll need to add an extra two channels. I use a separate power amp to run the front left and right channels.
I'm not too hung up about power ratings to be honest. We know that power ratings doesn't follow a linear relationship and you need 10 times the power for twice the loudness. So the difference between 100 Watts and 200 watts is marginal (less than 5%). A demo will tell how much headroom has the amplifier got.Not many people can get a demo in their own home with their own speakers, and many buy un-demoed online. If an independent website such as AVForums tested them all, then it would help.
If this marantz is anywhere near its claimed 205w per channel, then they would frankly be happy for it to be tested as it will help sales.
what power amps are they? seem quite special...Power requirements seems to be a controversial subject on these forums.
One school of thought is that if you don't listen very loudly, and have speakers with a good sensitivity, then a few watts per speaker will be enough.
Another school of thought is that you need 20db of 'headroom' to deal with the dynamic peaks in movie and music soundtracks. So even if you are not listening very loudly, during an explosion, or some mad rock guitar riff, there is a momentary peak in audio that can be as much as 20db, and so you need an amp that is capable of delivering that peak power output, or else those split second moments of dynamic audio will not play back cleanly.
I am in the second camp, and I have personally found that since adding power amps to my front three speakers, audio sounds better and more dynamic. Both for movies in surround mode, and music in stereo mode.
I will say, however, that it does depend on the source. The power amps I am using have VU meters and clipping indicators. When watching TV (freeview) or standard dolby digital streaming for example, there is not a lot of dynamism. But, when watching a Blu Ray with a HD audio soundtrack, or even playing back a CD, the dynamism goes through the roof! The lights on the power amp are jumping all over the place and the overall impact and effects of the sound is quite astonishing. I would say, more astonishing, and more shock and awe, than before I added the power amps.
It'll be 2019.until all of my equipment including receivers can do hdmi 2.1 its not even worth looking at for me ..that's likely to be next year or 2019 (roll on CES so i can find out if its sooner rather than later)
It'll be 2019.
Ha! Not really special, just not mainstream consumer. And affordable. Behringer A500 and Crown XLS.what power amps are they? seem quite special...
Only if listening in your room, with your speakers, after calibration and with your source material. And then again, if wanting to choose between a number of different AVR's, only if you can have them all in your room, at a similar time. As someone else pointed out, that isn't really feasible, so consumers do have to use faith when making some purchases, if the power ratings and specifications are not transparent and reliable.A demo will tell how much headroom has the amplifier got.