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Help me not blow my plate amp / subwoofer please

Discussion in 'Home Theater Projects' started by RussC, Nov 8, 2017.

  1. 1 Nov 8, 2017
    Last edited: Nov 8, 2017
    RussC

    RussC Auditioning

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    Russell Carroll
    I received a free un-powered subwoofer SS-ws95 driver that is 1.5 ohm. My receiver does not have a powered output so I bought a Dayton Audio SA25 plate amp 25 watts RMS into 4 ohms. . .cut a hole, wired it up and it sounds good; but it has come to my attention that I will blow my amp because I need more resistance; 2.5 more ohm to be precise. Will the links below do the trick if I put it/them (which one) either before or after the subwoofer driver or should I get something else? I used to understand electronics 25 years ago and don't quite know where to begin to fix this or the math I should be doing

    I would prefer to not spend more money on a new speaker / enclosuer

    https://smile.amazon.com/a12050500ux0020-Chassis-Aluminum-Wirewound-Resistor/dp/B01CV607H6/
    https://smile.amazon.com/Uxcell-a14041000ux1459-Aluminum-Housed-Resistors/dp/B00NQ0LEM4/
     
  2. RussC

    RussC Auditioning

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    Since i have posted this and did not get any replies I thought I would share what i learned.

    Adding a resistor (s) will not be a permanent solution. They will or the Amp will eventually burnout / fry. I have since removed the 1.5 ohm driver and bought a new 4ohm driver https://www.amazon.com/gp/product/B00EO770TY/ref=od_aui_detailpages00?ie=UTF8&psc=1

    I pryed open the cabinet which was not meant to be opened and removed the old driver. . . just need some wood glue to seal the front panel back on.

     

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