Solomonakoo Posted February 10, 2015 Author Report Share Posted February 10, 2015 something like this Ok, ill go check it out. Always test the coils on any new (to you) sub that you get. You know how to do this? place the probes on the negative and positive leads? Yeah it's pretty straight forward, just check the resistance of each coil. Most know how to do it but some do not. Since starting this thread was probably more work than just checking them, I was just making sure you were good to go. well I honestly didnt even think about using a DMM, I just figured they had markings on them or something. Quote Link to comment Share on other sites More sharing options...
will77530 Posted February 10, 2015 Report Share Posted February 10, 2015 we rarely mark coils honestly, and there are no other markings on the sub best way to tell will be with a dmm Quote Link to comment Share on other sites More sharing options...
Tom Haase Posted March 18, 2015 Report Share Posted March 18, 2015 I just got a DC XL 15 M2 from sonic electronix and it should be a dual 2 ohm sub. The foam inside the box even said d2 on it. I wired +to+ -to- on the sub and I got a reading the other day of 1.3 on a DMM so i figured I was good. I also set my gain on my crescendo bc2000d with the DMM and 60HZ test tone using ohms law to correct voltage. There was some smell from the sub for the first couple days of playing and now there is no smell but the sub don't seem as loud. I pulled the sub back out of the box and now each coil reads 4.1-4.3 and total when wired in paralell reads 2.3??? Could one or both of the coils be damaged and now reading differently? Only other possibility is I got a dual 4 ohm sub and it was actually 2.3 the other day and I am mistaken. Quote Link to comment Share on other sites More sharing options...
Kyblack76 Posted March 18, 2015 Report Share Posted March 18, 2015 DC dont ever mark the coils (unless its for some one "special") anyway.. toss a meter on it... and that will only show you the DCR of the coil.. Quote SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
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