Originally Posted by tony.tam
I'm not bragging or complaining. I'm trying to establish a fact so I can understand the issue.
correct, no sub. I'm don't understand
why you are stating the avr owes me anything. I'm just trying to fully understand why Yamaha avr recievers are the only ones that shutdown in this condition.
80-90 dB is plenty loud for me. I currently find 116 too loud.
I understand what he said. You are consistently driving the Yamaha higher than spec, and wondering why it shuts down. Adding a sub would relieve some of that high voltage you are demanding, easing the load on the Yamaha. "Owes you" is a reference to you abusing it, it has no fault in the issue.
Why do they shut down?:
Maybe they are the only ones designed properly, maybe they've set their clipping point a little lower than others. But I think it is much closer to the fact that you are using it incorrectly, and almost nobody does it that particular way. So, despite your call for other users to comment, I doubt you are getting very many useful comparisons on all these forums you mention. The number of people that purchase receivers with preouts and multichannel ins are tiny, and those that actually hook 2 receivers together has to be tiny subset of them, and the number of those
people that use both receivers as preamp instead of dedicating one to "amp" has to be a tiny subset of that. Maybe you are unique.
What the techs told you over the phone is going to be colored by their assumption that you are using the device correctly. Because most of the people they talk to are using it on its own, and any clipping those people get is with very different settings.
Now that you have an actual amp, you can use it properly. But, keep in mind that playing peaks of 116db is not always possible, certainly not with receivers. So, if it clips at such a point, try to realize that is STILL proper design. Last time I played something that loud, I made all of my children cry. (I have very efficient speakers, easy to do even with a receiver) You guys are comparing the highest end car engines for the silly hp analogy, when you ought to be using a Camry analogy, since that is the comparable level of your receiver. The Corvette is more like the XPA-5 mentioned a couple times. You won't clip that before red comes out your ears.
BTW, playing those 0db sine waves is a great way to destroy every bit of your system, both electronics and speakers. The entire point of the volume labels (0 vs -5 vs +5) is based on "normal" sources. A CD is normal at -10, so a 0db track played at +2 is more like +12 in reality. You should be glad that protection circuit is still working.