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Car Audio Equipment
Subwoofers
Subwoofer bottoming out easy?
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<blockquote data-quote="zako" data-source="post: 8055544" data-attributes="member: 629735"><p>It should be pretty hard to bottom out the (1000watt) Type-R in a sealed box. If you send 1000watts, according to WinISD's excursion graph, the one-way excursion reaches xmax at 20Hz, and you should realize that the voice coil probably has more excursion beyond the xmax. To bottom out the subwoofer, the excursion has to go way past xmax, and then hit the back plate. This is _very_ hard with a 12 inch subwoofer in a compact box.</p><p></p><p>I suspect the issue is with the amplifier. I bet the signal is being clipped. The m500 is not really meant to power a subwoofer wired for 1ohm. (It is designed internally as a 2channel amplifier bridged). You can wire the sub for 4ohm, you you won't get the most out of the amplifier this way. I suggest to set gain position with DMM and also trade the subwoofer for a D4 model so you can wire it for 2ohm impedance (or trade the amplifier).</p></blockquote><p></p>
[QUOTE="zako, post: 8055544, member: 629735"] It should be pretty hard to bottom out the (1000watt) Type-R in a sealed box. If you send 1000watts, according to WinISD's excursion graph, the one-way excursion reaches xmax at 20Hz, and you should realize that the voice coil probably has more excursion beyond the xmax. To bottom out the subwoofer, the excursion has to go way past xmax, and then hit the back plate. This is _very_ hard with a 12 inch subwoofer in a compact box. I suspect the issue is with the amplifier. I bet the signal is being clipped. The m500 is not really meant to power a subwoofer wired for 1ohm. (It is designed internally as a 2channel amplifier bridged). You can wire the sub for 4ohm, you you won't get the most out of the amplifier this way. I suggest to set gain position with DMM and also trade the subwoofer for a D4 model so you can wire it for 2ohm impedance (or trade the amplifier). [/QUOTE]
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Subwoofers
Subwoofer bottoming out easy?
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