If anybody knows stuff about home theater/surround sound, I need your help.

When I am using my DVD player running through my tuner and a "loud" part of the movie comes, the tuner shuts down and turns off. What's up?

dwwormington@ualr.edu

 

What brand and model Tuner is it?

 

JVC is the brand, but I will have to double check the model.

 

It's prolly drawing too much current and tripping a safety. Try turning the gain or the bass down a little and try it again.

 

does it shut down immediately when the sound intensifies?

it does sound like a 'safety' built into the tuner.

hows the heat build up near the receiver, is it well vented?

if heat is an issue you might want to consider an external fan.

 

Ditto. And if that doesn't work lower the volume a little.


If that fixes the problem, then move the reciever out to the garage and get a new better one for you Home Theater system.

 

It's possible that.....

A. the reciever is set to an ohm rating incompatible with the speakers. I.E reciever set to 8ohms or more and the speakers are 4 ohms or less. My Kenwood has a switch on the back to compensate for this.

B. Your speakers are set up to where they draw a low ohm rating i.e. 2 ohms and your reciever can't handle it.

It could be an overheat problem but it sounds like too much current draw and the reciever is shutting down. I would recheck all the wiring to the speakers. Make sure nothing is crossed anywhere and check your ohm ratings on the speakers compared to the reciever. If you put the speakers together yourself make sure you don't have 2 4ohm speakers wired in parrallel + to + and - to - . This can also happen if you have 2 sets of speakers in one line wired in parrallel. If all alse fails get yourself a nice Yamaha reciever yours may be broke.

Edit: one more thought, having 2 speakers together that have different ohm ratings or having only one speaker without one opposite of it (excluding center channel) it might be tripping a safety inside the reciever for having a mismatched load.

 

Thanks for all the help guys, I am going to experiment tonight. By the way, I have 6 speakers but only 4 "speaker output" things (whatever they are called, I am a lawyer not an electrician), so I have 2 wired into the same one, could that be playing a role?

 

YES! I assume you are wiring them in parallel (Two wires in - black and two wires in + red). Assuming you have 8 ohm speakers, you are making the load 4 ohms. If you have 4 ohm speakers, then you are making the load 2 ohms. The amplifiers is set to deliver into a specified load (2, 4, or 8 ohms). By driving into a load that is half of what it should be, you are drawing more current in the output and tripping a safety.

You may be able to change the setting on the amplifeier if it has one, or simply only drive one speaker per output. Driving more than 1 speaker per output doesn't usually sound too good anyway. I hope I made sense.