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Blown Subs or Amp??
Blown Subs or Amp??
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Old 22nd March 2012, 04:46 AM   #1
byates22 is offline byates22  United States
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Default 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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Old 22nd March 2012, 04:55 AM   #2
kevinkr is offline kevinkr  United States
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Blown Subs or Amp??
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.
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
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