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Car Audio Equipment
Subwoofers
Signs of a blown sub
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<blockquote data-quote="Sizzlechest" data-source="post: 8379396" data-attributes="member: 661234"><p>I tested the resistance on Monday night with a DMM and it was 0/not registering and I assumed this is because I was testing it on the enclosure +/- leads, not directly on the sub itself.</p><p></p><p>Today, I rigged up a headphone plug to RCA plug and played some music through my phone connected directly to the amp and it was doing the same as my HU -- no bass until high volume. At this point I'm saying FML and figured I'm buying either a new amp or new sub.</p><p></p><p>I pull the sub out of the box and immediately see something bad (see below). After seeing that I thought it was a huge possibility of being the cause of my issue. I decide to check the resistance of each VC anyway, and both came in at 2.5 so that was a relief.</p><p></p><p>[ATTACH]26552182[/ATTACH]</p><p></p><p>The negative terminal was black! I fortunately had some good 12 gauge OFC speaker wire left over from my recent install. I sanded all of the crap off of the terminal on the jack and soldered fresh OFC 12 gauge speaker wire directly to the terminal to ensure a good connection and got everything reconnected in my car. Fired it up and it played perfectly!</p><p></p><p>After:</p><p></p><p>[ATTACH]26552183[/ATTACH]</p><p></p><p>In the picture above you can see the base of the wire is black. On the terminal itself it had this black stuff caked onto it which was hard to get off even with 2000 grit sandpaper (its all I had).</p><p></p><p>I don't know what I was thinking when I wired the sub into the enclosure. I used the crappiest connection you can think of. It was old beat up crimp terminals that did not hold onto the jack snug at all.</p><p></p><p>Thank you everyone for your feedback!</p></blockquote><p></p>
[QUOTE="Sizzlechest, post: 8379396, member: 661234"] I tested the resistance on Monday night with a DMM and it was 0/not registering and I assumed this is because I was testing it on the enclosure +/- leads, not directly on the sub itself. Today, I rigged up a headphone plug to RCA plug and played some music through my phone connected directly to the amp and it was doing the same as my HU -- no bass until high volume. At this point I'm saying FML and figured I'm buying either a new amp or new sub. I pull the sub out of the box and immediately see something bad (see below). After seeing that I thought it was a huge possibility of being the cause of my issue. I decide to check the resistance of each VC anyway, and both came in at 2.5 so that was a relief. [ATTACH=CONFIG]26552182[/ATTACH] The negative terminal was black! I fortunately had some good 12 gauge OFC speaker wire left over from my recent install. I sanded all of the crap off of the terminal on the jack and soldered fresh OFC 12 gauge speaker wire directly to the terminal to ensure a good connection and got everything reconnected in my car. Fired it up and it played perfectly! After: [ATTACH=CONFIG]26552183[/ATTACH] In the picture above you can see the base of the wire is black. On the terminal itself it had this black stuff caked onto it which was hard to get off even with 2000 grit sandpaper (its all I had). I don't know what I was thinking when I wired the sub into the enclosure. I used the crappiest connection you can think of. It was old beat up crimp terminals that did not hold onto the jack snug at all. Thank you everyone for your feedback! [/QUOTE]
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Signs of a blown sub
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