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<blockquote data-quote="MiniflexAlex" data-source="post: 1616806" data-attributes="member: 564522">Hello,I&#039;am new here at this Forum.....I try to introduce myselfe.My Name is Alex, i&#039;am from Germany and life in the States (Michigan) now since appx. 12 month.I&#039;am 29 Year old and my english **** //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gifMy ride is a Jeep Grand CherokeeHU. Alpine CDA 9855FS. &amp;amp; FS.Amp is still the stock Infinity system //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gifSub. MTX Thunder 9512.44 in a vented enclosure.Sub. Amp: Rockford Fosgate T15002Starter Battery --&amp;gt; Stock Bat.Second Battery: Optima Yellow Top D31AWire 1/0 GaNow my question:I have to crank the gain at my Amp almost all the way up, do get some noise out of the Sub....I would say, on a scale from 0 to 100, i have to set the gain at about 95...?But my Pre out on the HU is 4 Volt.....at least in the manual??? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gifI had before a Alpine MRV 1005 - Amp, and it was exactly the same problem (I had to adjust the gain at 0,3V).May be, somebody here could give me some thoughts?Thanks for your help....Alex</blockquote>

[QUOTE="MiniflexAlex, post: 1616806, member: 564522"] Hello, I'am new here at this Forum..... I try to introduce myselfe. My Name is Alex, i'am from Germany and life in the States (Michigan) now since appx. 12 month. I'am 29 Year old and my english **** [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] My ride is a Jeep Grand Cherokee HU. Alpine CDA 9855 FS. & FS.Amp is still the stock Infinity system [IMG]//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif[/IMG] Sub. MTX Thunder 9512.44 in a vented enclosure. Sub. Amp: Rockford Fosgate T15002 Starter Battery --> Stock Bat. Second Battery: Optima Yellow Top D31A Wire 1/0 Ga Now my question: I have to crank the gain at my Amp almost all the way up, do get some noise out of the Sub.... I would say, on a scale from 0 to 100, i have to set the gain at about 95...? But my Pre out on the HU is 4 Volt.....at least in the manual??? [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] I had before a Alpine MRV 1005 - Amp, and it was exactly the same problem (I had to adjust the gain at 0,3V). May be, somebody here could give me some thoughts? Thanks for your help.... Alex [/QUOTE]

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