3.5mm Adapter for a 4 pin CB mic plug

Discussion in 'CB Radio Forum' started by bentstrider83, Aug 23, 2017.

  1. bentstrider83

    bentstrider83 Road Train Member

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    Do they have these anywhere? I've been looking high and low for one to use for a PA system on an amp I have.
     
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  3. johnnytech

    johnnytech Light Load Member

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    You will most likely have to create one,
     
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  4. bentstrider83

    bentstrider83 Road Train Member

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    I'm trying to use one of those "noise canceling" mics in place of the stock mic on this Rockford, 1000W amp. It's for a bicycle trailer sound system build to be used at parties and such.
    As far as "creating" one goes, it seems as though this mobile sound system project is going to go through the budget roof. I'm thinking a male/female connector and then solder a 3.5mm jack from another mic?

    Nothing like testing out soldering skills with early onset Palsy.(could never get welding down as my hands tended to microshake alot.)
     
  5. johnnytech

    johnnytech Light Load Member

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    check the manual for mic input impedance as the mic you will be using may be to low.
     
  6. Ridgeline

    Ridgeline Road Train Member

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    The amp has a 20k impedance, the mic is less than that. AND the amp needs something to drive it.
     
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  7. johnnytech

    johnnytech Light Load Member

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    Typically, those boards are switchable, 10k is somewhere in the ball park.
     
  8. johnnytech

    johnnytech Light Load Member

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    slide me the model # of the amp and what you are using it specifically for.
     
  9. Ridgeline

    Ridgeline Road Train Member

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    I could not find anything about the input being switchable, it is an unbalanced input with rca jacks.
     
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  10. bentstrider83

    bentstrider83 Road Train Member

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    It's a Rockville "RXM-F3" Marine Amp. It's supposed to be for a car, but I'm using it as a bicycle towed, PA/Sound system.
     
  11. bentstrider83

    bentstrider83 Road Train Member

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    20170819_161533.jpg 20170819_161533.jpg 20170819_161533.jpg
    Here's a couple of pics of my build...
     
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