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<blockquote data-quote="CKY" data-source="post: 648144" data-attributes="member: 555491">I own a Pioneer DEH-P5630MP and i started a &quot;flame&quot; with a guy from a local shop who kept telling me that i need to use the xovers from the amp , because the HU sub out doesn&#039;t cut the high freq (although i can select a cutoff freq of 50,80,100,125Hz). So he told me to change my current setup : Crossovers from the amp set to minimum (320Hz) with 100Hz or so from the HU.As i own a JBL GTO75.4 , i run 4 channels bridged into 2 , each one going to a coil of a Alpine TypeR 1241D. But can you make a perfectly identical crossover freq. setup on both channels to prevent having different signals going to the coils ?So i burned a CD with a 150Hz tone , set the amp crossovers to min (320hz) and selected 100Hz subout cutoff from my HU ... surprise ... the sub was recieving that freq&nbsp; //content.invisioncic.com/y282845/emoticons/scared.gif.f134e57c6c93ccd0f15aa5ac32c7d4a0.gifWTF ?Somebody please explain it to me&nbsp; //content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif Thanks !</blockquote>

[QUOTE="CKY, post: 648144, member: 555491"] I own a Pioneer DEH-P5630MP and i started a "flame" with a guy from a local shop who kept telling me that i need to use the xovers from the amp , because the HU sub out doesn't cut the high freq (although i can select a cutoff freq of 50,80,100,125Hz). So he told me to change my current setup : Crossovers from the amp set to minimum (320Hz) with 100Hz or so from the HU. As i own a JBL GTO75.4 , i run 4 channels bridged into 2 , each one going to a coil of a Alpine TypeR 1241D. But can you make a perfectly identical crossover freq. setup on both channels to prevent having different signals going to the coils ? So i burned a CD with a 150Hz tone , set the amp crossovers to min (320hz) and selected 100Hz subout cutoff from my HU ... surprise ... the sub was recieving that freq [IMG]//content.invisioncic.com/y282845/emoticons/scared.gif.f134e57c6c93ccd0f15aa5ac32c7d4a0.gif[/IMG] WTF ? Somebody please explain it to me [IMG]//content.invisioncic.com/y282845/emoticons/thumbsup.gif.3287b36ca96645a13a43aff531f37f02.gif[/IMG] Thanks ! [/QUOTE]

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