Im getting a dc xl 12 on monday that I got from ebay. Guy said it was in good condition but who knows. Any ways I dont have a multi metter so cant check that way. But I remember seeing a video on youtube that said you can check voice coils with a small battery, any truth? I dont recall if he used a AA or a 9v but he said if the cone moves when you hook it up your good if not the its blown. I cant seam to find the video anymore so I cant double check
RandyAudio is incorrect in two respects:
Using your car battery to check for continuity will impose on the entire speaker to an unnecessary
degree... great way to open circuit or warp the voice coil if applied for more than a microsecond.
He also proclaims that a 9v battery (household type he seems to be implying) is potentially incapable
of this task. In actuality even a tiny 3v watch battery is effective and far safer- if an ohm meter is
Blown sub battery test?
in Subwoofers / Enclosures
Posted
RandyAudio is incorrect in two respects:
Using your car battery to check for continuity will impose on the entire speaker to an unnecessary
degree... great way to open circuit or warp the voice coil if applied for more than a microsecond.
He also proclaims that a 9v battery (household type he seems to be implying) is potentially incapable
of this task. In actuality even a tiny 3v watch battery is effective and far safer- if an ohm meter is
not at hand.