Why am i blowing channels on my receiver?

geek
geek Posts: 1
in Troubleshooting
All i have is a pair of 5YR OLD rti-A7s. They're hooked up to a Outlaw Audio rs2150.
In five yrs i burned up a channel at least twice.. Outlaw says, it a Speaker impedance / wiring fault.

I pulled out all the speakers and tested ohms. All the ohms match for the Mids, Tweets and Sub's. The crossovers look and smell perfect. I checked basic continuity on PCB's; boards match.

Is there any other field tests i can do before buying new crossovers?

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Answers

  • BlueFox
    BlueFox Posts: 15,251
    Maybe you are playing it too loud.
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  • F1nut
    F1nut Posts: 50,654
    They are 8 ohm nominal speakers, not a difficult load. BlueFox's comment has serious merit. At what volume level are you listening?
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  • tonyb
    tonyb Posts: 32,983
    If your using bare wire ends to connect the speakers, make sure the wire in the posts on either end doesn't touch an adjoining post or other wire.

    Could be your playing them too loud also or the receiver is in need of repair.
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  • pitdogg2
    pitdogg2 Posts: 25,574
    Tony I'm guessing that if this receiver has been repaired "at least TWICE" then we may be able to rule that out. sound like they are over driving the receiver into severe clipping....sound to me that you are very lucky you are not blow drivers and tweeters
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  • tonyb
    tonyb Posts: 32,983
    If it's been repaired twice already, maybe a third time is in order. Can't rule it out, something he's doing is clipping that receiver and it should have no problems driving the 7's to pretty frickin' loud levels.

    Maybe he's using the A-B switch to ghetto bi-amp them, then burying the volume dial, I dunno. Need more info.
    HT SYSTEM-
    Sony 850c 4k
    Pioneer elite vhx 21
    Sony 4k BRP
    SVS SB-2000
    Polk Sig. 20's
    Polk FX500 surrounds

    Cables-
    Acoustic zen Satori speaker cables
    Acoustic zen Matrix 2 IC's
    Wireworld eclipse 7 ic's
    Audio metallurgy ga-o digital cable

    Kitchen

    Sonos zp90
    Grant Fidelity tube dac
    B&k 1420
    lsi 9's
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  • littlewoodboats
    littlewoodboats Posts: 823
    edited April 2016
    tonyb wrote: »
    Maybe he's using the A-B switch to ghetto bi-amp them, then burying the volume dial, I dunno. Need more info.

    Outlaw lists the RR-2150 as 4 ohm stable and do say the A & B speakers can be run at the same time if both pairs are no lower than an 8 ohm load.

    Wouldn't the speakers normally let go before the amp in a clipping situation?

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  • erniejade
    erniejade Posts: 6,321
    Do you have anything covering up the vents?
    Klipsch The Nines, Audioquest Thunderbird Interconnect, Innuos Zen MK3 W4S recovery, Revolution Audio Labs USB & Ethernet, Border Patrol SE-I, Audioquest Niagara 5000 & Thunder, Cullen Crossover II PC's.
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  • pitdogg2
    pitdogg2 Posts: 25,574
    littlewoodboats wrote: »

    Wouldn't the speakers normally let go before the amp in a clipping situation?

    Not all the time Depending on how the speakers are hooked up the the receiver/amp it could be seeing a 2ohm load and this in turn could fry parts because of excessive heat and or voltage.

    I'm not saying that this is what is going on in this situation just answering your question

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