Receiver overlload problem?

[Deadhorse]

All of a sudden at high volume my receiver displays overload on the front and shuts off. Is this a speaker or receiver problem and is there any way to diagnose it?

 

[TLS Guy]

All of a sudden at high volume my receiver displays overload on the front and shuts off. Is this a speaker or receiver problem and is there any way to diagnose it?

Almost certainly you receiver, but check for wire whiskers in the speaker connection, that might be shorting to the receiver chassis.

What is your receiver and what are your speakers? It may be the impedance of your speakers is too low for your receiver.

 

[Deadhorse]

Whatever it is it not a setting as the system has been running fine for well over a year and nothing has been changed. Had to pull my cable box last week, more than likely it disturbed one of the speaker wires, I'll check it out and thanks for the help.

 

[highfigh]

Whatever it is it not a setting as the system has been running fine for well over a year and nothing has been changed. Had to pull my cable box last week, more than likely it disturbed one of the speaker wires, I'll check it out and thanks for the help.

Make sure the binding posts haven't loosened. I see this fairly often. It's not a contest to see who can tighten them the most but they need to be checked occasionally unless you use banana plugs and if you use those, make sure one didn't work its way out when you removed the cable box.

 

[deedubb]

What speakers are you running and are they new?

 

[Deadhorse]

Don't have the model numbers here but the front right and lefts are the oldest ones, they're Technices, T200's I think? Center, center surrounds and sub are all Klipch and then two Sony bookshelves for surrounds.

 

[deedubb]

I suspect those are all 8 ohm speakers, so unlikely an impedance issue. As above, check all speaker wires to make sure there are no loose strands touching something they shouldn't be.

 

[njedpx3]

Whatever it is it not a setting as the system has been running fine for well over a year and nothing has been changed. Had to pull my cable box last week, more than likely it disturbed one of the speaker wires, I'll check it out and thanks for the help.

I agree with TLS, the symptom you are describing is the classic whisker short problem.

The most thorough and effective way to diagnose abiet not necessarily the faster if you are lucky at probabilty...i.e. picking the faulty wire is to disconnect ALL speakers and reconnect them one at a time and check the AVR system after each speaker is reconnected. This will absolutely ensure you find the whisker short.

I personally like to use locking banana plugs, especially at the AVR end to avoid whisker shorts. It is not near as important at the speaker end.

Monoprice makes good inexpensive banana plugs. I like these double locking plugs but they are a little pricey http://www.uniqueproductsonline.com/lobapl20pa10.html


Good Luck and Good Sound,

Forest Man

 

[mtrycrafts]

All of a sudden at high volume my receiver displays overload on the front and shuts off. ..

Is this the first time for such high volumes? Added more speakers to the receiver lately?

 

[Shock]

If this is a recent problem, I can almost guarantee you have a short over one of your speaker terminals. A wire strand most likely came lose and is touching the other speaker terminal. I would check the connections on all your speakers and your receiver to make sure you don't have a stray copper strand shorting the connection.