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<blockquote data-quote="Silver" data-source="post: 965779" data-attributes="member: 554626">OK, I recently had a Clarion RDB355D hooked up as my HU with a line out converter. Everything ran great! Perfect not one complaint.I bought a Alpine 9825 yesterday for a HU upgrade. It has 3 Outputs, the RCA line-out is no longer needed. I hooked up everything yesterday to my HU and made sure the RCA&#039;s were ran to the correct output. Kicked on the HU everything works, perfect.My sub distorts like a mofo. I played with the gains on my amp but no go. It sounds like crap like sandpaper when it hits. Not when its playing a tone, when it plays a tone its quiet.Now, when I turn off the MOSFET internal amp (shuts off components) the sub POUNDS way better then it did then the old HU.&nbsp; When I turn the internal amp back on sounds like crap. Vocals, bass, everything. I have to listen to it quiet so it sounds decent.My sub is inverted, so I dont think thats a problem. Could my RCA&#039;s be put in backwards?Its not my componets becasue when I turn the sub off, the components sound fine even at high volume. It seems like something is interferring.Now I&#039;m either going to take this HU back and get a Pioneer DEH-4700 MP or keep this because I got it dirt cheap, but if someone knows whats wrong please help me!!Thanks. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif</blockquote>

[QUOTE="Silver, post: 965779, member: 554626"] OK, I recently had a Clarion RDB355D hooked up as my HU with a line out converter. Everything ran great! Perfect not one complaint. I bought a Alpine 9825 yesterday for a HU upgrade. It has 3 Outputs, the RCA line-out is no longer needed. I hooked up everything yesterday to my HU and made sure the RCA's were ran to the correct output. Kicked on the HU everything works, perfect. My sub distorts like a mofo. I played with the gains on my amp but no go. It sounds like crap like sandpaper when it hits. Not when its playing a tone, when it plays a tone its quiet. Now, when I turn off the MOSFET internal amp (shuts off components) the sub POUNDS way better then it did then the old HU. When I turn the internal amp back on sounds like crap. Vocals, bass, everything. I have to listen to it quiet so it sounds decent. My sub is inverted, so I dont think thats a problem. Could my RCA's be put in backwards? Its not my componets becasue when I turn the sub off, the components sound fine even at high volume. It seems like something is interferring. Now I'm either going to take this HU back and get a Pioneer DEH-4700 MP or keep this because I got it dirt cheap, but if someone knows whats wrong please help me!! Thanks. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] [/QUOTE]

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