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Car Audio Discussion
General Car Audio
JL Audio HD or Slash 1200
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<blockquote data-quote="NSTALN" data-source="post: 8603661" data-attributes="member: 588169"><p>If you go with the HD then you'll want to use a pair of these as well:</p><p></p><p><a href="https://www.parts-express.com/harrison-labs-fmod-inline-crossover-pair-20-hz-high-pass-rca--266-246" target="_blank">https://www.parts-express.com/harrison-labs-fmod-inline-crossover-pair-20-hz-high-pass-rca--266-246</a></p><p></p><p>These will provide a 20hz high-pass (same as subsonic filter) @12db per octave. They are used in-line between the RCA's and the input of the HD amp. You would turn the 30hz@24db fixed SS OFF on the amp itself. If you go with the Slash then you will use it's built-in variable SS filter.</p><p></p><p>This is assuming you're going with a ported box. If going sealed then no SS is needed and would be turned OFF on either amp.</p></blockquote><p></p>
[QUOTE="NSTALN, post: 8603661, member: 588169"] If you go with the HD then you'll want to use a pair of these as well: [URL="https://www.parts-express.com/harrison-labs-fmod-inline-crossover-pair-20-hz-high-pass-rca--266-246"]https://www.parts-express.com/harrison-labs-fmod-inline-crossover-pair-20-hz-high-pass-rca--266-246[/URL] These will provide a 20hz high-pass (same as subsonic filter) @12db per octave. They are used in-line between the RCA's and the input of the HD amp. You would turn the 30hz@24db fixed SS OFF on the amp itself. If you go with the Slash then you will use it's built-in variable SS filter. This is assuming you're going with a ported box. If going sealed then no SS is needed and would be turned OFF on either amp. [/QUOTE]
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