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22nd March 2012, 04:46 AM
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#1 |
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diyAudio Member
Join Date: Mar 2012
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Blown Subs or Amp??
Would bridging two 4ohm subwoofers together into a 2ohm channel blow them?
I bridged two 12 inch 4ohm subs unknowningly to an amplifier that wasnt stable for 2ohms, amp overheated, could the subs have blown too, let alone the amp??? |
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22nd March 2012, 04:55 AM
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#2 |
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diyAudio Moderator
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If the amp's ultimate failure mode due to overload was to short output devices it is possible that it put DC into the VC of your subwoofers and that could damage them.
Do you have a DMM? If so measure the DCR of the voice coils and compare to the manufacturer's specification. Be sure to subtract out the meter lead resistance when doing the measurement. A DCR of significantly less than 3/4 of the stated impedance [4 ohms] if the DCR is not given would be a cause for concern - indicating that the VC is probably shorted.
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