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Car Audio Equipment
Subwoofers
Signs of a blown sub
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<blockquote data-quote="Sizzlechest" data-source="post: 8378472" data-attributes="member: 661234"><p>My sub recently started only producing bass when my HU volume is around half or higher. I get absolutely no bass at low volume.</p><p></p><p>The sub is a sundown audio sa12 d2 wired to 1-ohm powered by a soundstream rub1.1000d @ 1000 x 1. Lowpass filter is at about 75 hz.</p><p></p><p>My first thought is the head unit itself. Its an android double din unit from China that has weak pre-outs. When I mentioned concern with the hu, someone on android hu forum said the sub may have a short which may be why it is only working when the amp is outputting higher voltage/watts to it. Does this sound possible to anyone (no pun intended). It still hits hard when the volume is high, just nothing at low volume. Its almost as if a certain volume level is an on/off switch for the bass... really weird</p><p></p><p>I was going to pull the sub tonight and check the resistance on the voice coils to see if that checks out. My next test is going to be trying a different output source to rule out a HU issue.</p></blockquote><p></p>
[QUOTE="Sizzlechest, post: 8378472, member: 661234"] My sub recently started only producing bass when my HU volume is around half or higher. I get absolutely no bass at low volume. The sub is a sundown audio sa12 d2 wired to 1-ohm powered by a soundstream rub1.1000d @ 1000 x 1. Lowpass filter is at about 75 hz. My first thought is the head unit itself. Its an android double din unit from China that has weak pre-outs. When I mentioned concern with the hu, someone on android hu forum said the sub may have a short which may be why it is only working when the amp is outputting higher voltage/watts to it. Does this sound possible to anyone (no pun intended). It still hits hard when the volume is high, just nothing at low volume. Its almost as if a certain volume level is an on/off switch for the bass... really weird I was going to pull the sub tonight and check the resistance on the voice coils to see if that checks out. My next test is going to be trying a different output source to rule out a HU issue. [/QUOTE]
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Signs of a blown sub
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