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<blockquote data-quote="2loud4u" data-source="post: 2697217" data-attributes="member: 562346"><p>ISF is the sub sonic filter.</p><p></p><p>subsonic filter rolls off frequencies below its set point to protect sub-woofers from damage due to ultra-low frequencies pushing the speaker cone beyond its mechanical limits.</p><p></p><p>Phase switch on the amp is</p><p></p><p>the phase switch on an electronic crossover usually changes the phase of the output signal by 180 degrees. Depending on the interior dimensions of your vehicle, how the subwoofer is mounted, and where it is mounted, the bass may sound better if the phasing switch is utilized. Sometimes it will sound better if it is not used. The higher the crossover frequency between the subs and the mid-bass, the more noticeable the difference caused by phase switch position</p><p></p><p>Edit Prowler beat me 2 it.</p></blockquote><p></p>
[QUOTE="2loud4u, post: 2697217, member: 562346"] ISF is the sub sonic filter. subsonic filter rolls off frequencies below its set point to protect sub-woofers from damage due to ultra-low frequencies pushing the speaker cone beyond its mechanical limits. Phase switch on the amp is the phase switch on an electronic crossover usually changes the phase of the output signal by 180 degrees. Depending on the interior dimensions of your vehicle, how the subwoofer is mounted, and where it is mounted, the bass may sound better if the phasing switch is utilized. Sometimes it will sound better if it is not used. The higher the crossover frequency between the subs and the mid-bass, the more noticeable the difference caused by phase switch position Edit Prowler beat me 2 it. [/QUOTE]
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