JVC RX 7042

[DaBass]

Hey ya'll, wondering if this amp (JVC RX 7042S, 130 Watts per channel, so it says) I picked up is going into overload because it's getting hot or can't handle the Cerwin Vega LS-15's at high volumes in this residential area. . My RX-V1 never cut out. Thanks.

 

[lovinthehd]

Maybe you should try a different residential area? Not sure how that plays into it in any case.

Probably getting too hot if its going into thermal protection mode. High volume for low impedance speakers can be a problem, while I see a nominal impedance rating of 8 ohm, could well have points where it dips much lower. The speakers also say they're 102dB sensitive, which I find hard to believe but if so then wouldn't take much power to get painfully loud otoh. Could be the receiver is just old and having issues, too.

ps make sure all your connections at receiver and speakers are good, no stray strands, etc.

 

[DaBass]

Maybe you should try a different residential area? Not sure how that plays into it in any case.

Probably getting too hot if its going into thermal protection mode. High volume for low impedance speakers can be a problem, while I see a nominal impedance rating of 8 ohm, could well have points where it dips much lower. The speakers also say they're 102dB sensitive, which I find hard to believe but if so then wouldn't take much power to get painfully loud otoh. Could be the receiver is just old and having issues, too.

ps make sure all your connections at receiver and speakers are good, no stray strands, etc.

Maybe you should try a different residential area? Not sure how that plays into it in any case.

Probably getting too hot if its going into thermal protection mode. High volume for low impedance speakers can be a problem, while I see a nominal impedance rating of 8 ohm, could well have points where it dips much lower. The speakers also say they're 102dB sensitive, which I find hard to believe but if so then wouldn't take much power to get painfully loud otoh. Could be the receiver is just old and having issues, too.

ps make sure all your connections at receiver and speakers are good, no stray strands, etc.

Well the JVC RX-7042 is an older amp but it's like brand new and was hardly ever used, the independence requirement is min 8ohm&max 16ohms, back of my Cerwin Vega LS-15's say 8ohms so I don't think that's the prob and everything is hookered up right tight, possible that the amp is kicking off into overload because it's trying to preserve its life because Cerwin's are too much for it? My Yamaha RX-V1 is going on to have minor issues resolved but that thing never cut out, mind you you can't really compare the two amplifiers.

 

[TLS Guy]

Well the JVC RX-7042 is an older amp but it's like brand new and was hardly ever used, the independence requirement is min 8ohm&max 16ohms, back of my Cerwin Vega LS-15's say 8ohms so I don't think that's the prob and everything is hookered up right tight, possible that the amp is kicking off into overload because it's trying to preserve its life because Cerwin's are too much for it? My Yamaha RX-V1 is going on to have minor issues resolved but that thing never cut out, mind you you can't really compare the two amplifiers.

That is not a high powered receiver. Turn it down. A speaker marked 8 ohms on the back means nothing. Impedance is a curve and the spec tells you nothing about the phase angles.

I am certain you are driving the speakers too hard with that JVC unit. So turn it down a lot.

 

[lovinthehd]

Well the JVC RX-7042 is an older amp but it's like brand new and was hardly ever used, the independence requirement is min 8ohm&max 16ohms, back of my Cerwin Vega LS-15's say 8ohms so I don't think that's the prob and everything is hookered up right tight, possible that the amp is kicking off into overload because it's trying to preserve its life because Cerwin's are too much for it? My Yamaha RX-V1 is going on to have minor issues resolved but that thing never cut out, mind you you can't really compare the two amplifiers.

They're about the same age. What happened to the Yamaha? The Yamaha may well be the better amp section for low impedance loads; its 8 ohm rating was a bit lower than the JVC's, and the bench test at S&V of the Yamaha had pretty strong 4 ohm output; the Yamaha has dynamic ratings down to 2 ohm (nothing like that in the JVCs manual at least). As TLS said, speaker nominal rating doesn't mean a lot and have seen mentions of fairly low dips on CV speakers. In any case sounds like you're exceeding the capabilities of the JVC....why did you get it particularly?