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Replace 8 ohm speaker in baby monitor

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  • 17-02-2017 9:40pm
    #1
    foxirl
    Registered Users Posts: 677 ✭✭✭


    Hi,

    Speaker in baby monitor not working anymore so was going to replace it.
    Its a 8 ohm 0.5 watt speaker. Don't have one so will have to order one in.

    Have a 16 ohm .25 watt on and was going to give that a go or will it just blow due to the higher wattage.

    Thanks and appreciate the advice.


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    #2
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,595 Mod ✭✭✭✭2011


    foxirl wrote: »
    Hi,

    Speaker in baby monitor not working anymore so was going to replace it.
    Its a 8 ohm 0.5 watt speaker. Don't have one so will have to order one in.

    Have a 16 ohm .25 watt on and was going to give that a go or will it just blow due to the higher wattage.

    Thanks and appreciate the advice.

    I'm no speaker expert, but 0.25 watt is less than 0.5 watts, so I can't see how you would blow it.
    Simply put the replacement speaker is a higher impedance than the original so I would expect a smaller current to flow in the replacement speaker, not a larger current.


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    #3
    [Deleted User]
    Posts: 5,238 ✭✭✭ [Deleted User]


    Have you two 16Ω speakers? You could parallel them and twould be a perfect match.


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    #4
    foxirl
    Registered Users Posts: 677 ✭✭✭foxirl


    2011 wrote: »
    I'm no speaker expert, but 0.25 watt is less than 0.5 watts, so I can't see how you would blow it.
    Simply put the replacement speaker is a higher impedance than the original so I would expect a smaller current to flow in the replacement speaker, not a larger current.

    Thanks. Sure no harm giving it a go I suppose and if it doesn't work I can order the correct one online. My knowledge of electrics would be fairly limited but this is ran by battery so should be safe enough.


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    #5
    foxirl
    Registered Users Posts: 677 ✭✭✭foxirl


    Sir Liamalot wrote: »
    Have you two 16Ω speakers? You could parallel them and twould be a perfect match.

    Perfect. Thanks


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    #6
    dr.fuzzenstein
    Banned (with Prison Access) Posts: 16,620 ✭✭✭✭dr.fuzzenstein


    Are you sure its the speaker? Most of the time the wiring or the electronics give up before the speaker does.


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    #7
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,595 Mod ✭✭✭✭2011


    dr.fuzzenstein wrote: »
    Are you sure its the speaker? Most of the time the wiring or the electronics give up before the speaker does.

    There is an easy way to find out....


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    #8
    foxirl
    Registered Users Posts: 677 ✭✭✭foxirl


    dr.fuzzenstein wrote: »
    Are you sure its the speaker? Most of the time the wiring or the electronics give up before the speaker does.
    2011 wrote: »
    There is an easy way to find out....

    Sure I'll find out when I try the new speaker


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    #9
    dr.fuzzenstein
    Banned (with Prison Access) Posts: 16,620 ✭✭✭✭dr.fuzzenstein


    foxirl wrote: »
    Sure I'll find out when I try the new speaker

    Well, keep us posted :)


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    #10
    foxirl
    Registered Users Posts: 677 ✭✭✭foxirl


    dr.fuzzenstein wrote: »
    Well, keep us posted :)

    Will do. Will not get around to trying it till Sunday evening.


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    #11
    exaisle
    Registered Users Posts: 2,675 ✭✭✭exaisle


    As long as you're not using it at full volume it should be fine...

    Have a read here if you're interested in speaker impedence etc...

    http://www.prestonelectronics.com/audio/Impedance.htm


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    #12
    foxirl
    Registered Users Posts: 677 ✭✭✭foxirl


    Just soldered it in and all working perfect. Thanks for the advice. Saved the sister having to get a new one


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    #13
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,595 Mod ✭✭✭✭2011


    Nice one :)


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