buckee1

I have a Yamaha Rx-V661 receiver, Klipsch B2 bookshelves all around (6) Klipsch C2 center and Klipsch 10" powered sub & a Samsung Dual format player. When I'm watching loud films like say Transformers, the audio will just cut out and the receiver shuts down. I've checked all my speaker cables and nothing is touching anything so there's no short. Maybe my settings are off or something but, I'm at a loss for what to do next.

Hs anyone else dealt with this issue and if so, how did you correct it so that you can play it as loud as you want without any overload situations?

Thanks

E Unit

My one suggestion from personal experience is to check the gauge of the speaker wire and make sure its the same. I had one wire that was a 12 and the rest were 16 so there was a flow imbalance. My two cents. Good luck, I hope its something simple.

buckee1

All the wire is the same. I bought some Monster "in wall/out" speaker cable that's twisted around itself and in a "thickish" sheath and used that for all the speakers save the sub. Thanks for the tip though.

Brian Shannon

Sounds to me like you are clipping the amp and triggering some kind of heat/overload protection.

Does this only happen on dvd's or other sources too?

buckee1

I only use this amp for DVDs. HD/BR & SD.

Brian Shannon

Well the amp at 90 w/pc should not have any problems unless you are trying to play it at absurd volumes.

You could try just the fm tuner to see if it will do it there. If so the problem maybe in the dvd player. Otherwise if you are sure that no speaker cables are touching then it must be something in the amp. I cannot say if it is a flaw or you are simply driving it too hard.

How big is the room?

buckee1

I could just be driving it too hard as you've said. The room is fairly large (finished basement) I am unsure of the dimensions but again, it's pretty big. 1700Sq ft. roughly. I boosted the gain on my sub last evening to get a little more rumble and that worked out well. could that have anything to do with it?

Brian Shannon

Well a 1700 sq ft. room is huge, my theater is only 285 sq ft. If the sub is powered then no, I would say that is not the problem.

If you are trying to fill a 1700 sq ft. room with 90 w/pc and book shelf speakers then yes I would say you are driving it too hard and it is likely the overload protection kicking in.

buckee1

Sounds like that may indeed be my issue. I'll crank it down bit and see what happens. I'll also give the tuner a try. Thanks for the help Brian.

Spiky

Get an SPL meter and set the audio up properly. If you haven't done this, you are probably driving one channel too far, which is all it takes.

And it never hurts to triple check the wires. One tiny strand is all it takes. One strand won't send it into protection instantly, but at lower volumes than if all is perfect.

buckee1

Ok, were do I get an "SPL" Meter and how do I use it? I'll re-check my wires as well. This particular receiver tells you if that's an issue but, I'll re-check them as well.

Brian Shannon

Radio Shack sells a good one, I have one for my theater. The instructions are fairly simple and you will understand what it is telling you when you use it. Much better than trying to balance by ear alone.

If you have bare stranded wire you can also buy ends to fit your speakers and receiver.

buckee1

Thank you. When the weather breaks here (wintry michigan) I'll head on over to Radio Shack.

Spiky

It looks something like this:

trubiet

Clipping the Amp, exactly what I was going to say.

buckee1

Thanks for the looky loo. now I know what I'm looking for.