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<blockquote data-quote="fuqueue" data-source="post: 6046062" data-attributes="member: 610128">I have the same head unit - u still having issues?&nbsp; Roll off rate and all that crossover stuff is all directly related to that graph someone posted up above.&nbsp; (Remember that sound in music is spread over a range of frequencies, with bass being low frequencies, treble is high, and mids in between) Frequency is the horizontal (x) axis of the graph.&nbsp; The vertical <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite22" alt="(y)" title="Thumbs up&nbsp; &nbsp; (y)" loading="lazy" data-shortname="(y)" /> axis is &quot;boost&quot;.Crossovers are like a filter, or frequency gate, in that it only passes the frequencies you want to the speakers.&nbsp; It does this by boosting the range of frequencies, or blocking the frequencies you don&#039;t want.As to how you should set the crossovers, the most important thing to consider is are you using a subwoofer?&nbsp; If not, just set the x-over on your interiors to &quot;thru&quot;.&nbsp; With a sub, set the sub to pass everythign below 80 or 100 Hz, and then for the interior speakers you should pass everything above that same number.&nbsp; Sometimes you may wish to have some overlap, like set the sub to 100 and the interiors to 80 - just depending on your preference on the sound.Crossovers are real important for interior speakers (if you have the sub) because not only will all the bass from so many speakers sound crappy, but when the head unit allows you to cut out the bass out it frees a lot of extra power for the real music.</blockquote>

[QUOTE="fuqueue, post: 6046062, member: 610128"] I have the same head unit - u still having issues? Roll off rate and all that crossover stuff is all directly related to that graph someone posted up above. (Remember that sound in music is spread over a range of frequencies, with bass being low frequencies, treble is high, and mids in between) Frequency is the horizontal (x) axis of the graph. The vertical (y) axis is "boost". Crossovers are like a filter, or frequency gate, in that it only passes the frequencies you want to the speakers. It does this by boosting the range of frequencies, or blocking the frequencies you don't want. As to how you should set the crossovers, the most important thing to consider is are you using a subwoofer? If not, just set the x-over on your interiors to "thru". With a sub, set the sub to pass everythign below 80 or 100 Hz, and then for the interior speakers you should pass everything above that same number. Sometimes you may wish to have some overlap, like set the sub to 100 and the interiors to 80 - just depending on your preference on the sound. Crossovers are real important for interior speakers (if you have the sub) because not only will all the bass from so many speakers sound crappy, but when the head unit allows you to cut out the bass out it frees a lot of extra power for the real music. [/QUOTE]

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