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Car Audio Discussion
General Car Audio
Cross over filter level question
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<blockquote data-quote="dieseltwitch" data-source="post: 8201262" data-attributes="member: 658862"><p>So I'm new to car audio. I've done my best to learn as much as I can but one thing that still confuses me is dB. For example on my amp a 900/5 JL there is a High Pass filter on the speaker channels. there are 3 settings; off, 12 dB, 24 dB. and a dial for selecting frequency. I understand how the dial is should to work. But maybe Im missing something. The speakers I have (JL C2-650) are said to handle 59Hz and up, so I set the cross over on the amp to 60Hz. However, when I play a test tone of 50 and even 40 Hz I can still get a response from the speakers? I tried adjusting the filter but the only thing that seams to work is by is moving the cross over setting to 70-75 Hz but then I feel it doesn't sound as good as it should.</p><p></p><p><strong>What am I missing?</strong></p><p></p><p>Also my speakers have external cross overs that also have a filter setting of +2dB, REF and -3dB... Help here would be great!</p></blockquote><p></p>
[QUOTE="dieseltwitch, post: 8201262, member: 658862"] So I'm new to car audio. I've done my best to learn as much as I can but one thing that still confuses me is dB. For example on my amp a 900/5 JL there is a High Pass filter on the speaker channels. there are 3 settings; off, 12 dB, 24 dB. and a dial for selecting frequency. I understand how the dial is should to work. But maybe Im missing something. The speakers I have (JL C2-650) are said to handle 59Hz and up, so I set the cross over on the amp to 60Hz. However, when I play a test tone of 50 and even 40 Hz I can still get a response from the speakers? I tried adjusting the filter but the only thing that seams to work is by is moving the cross over setting to 70-75 Hz but then I feel it doesn't sound as good as it should. [B]What am I missing?[/B] Also my speakers have external cross overs that also have a filter setting of +2dB, REF and -3dB... Help here would be great! [/QUOTE]
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Cross over filter level question
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