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<blockquote data-quote="91caprice" data-source="post: 6806220" data-attributes="member: 614442"><p>ok if its a D2 then that changes some of my theory. but if its wired wrong youll be at a 4ohm load,and your only going to see around 400w. just double check on <a href="http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=1&amp;amp;I=22" target="_blank">Subwoofer Wiring Diagrams, One 2 ohm Dual Voice Coil (DVC) Speaker</a> . if you are at 1ohm,then look at the gain settings. if you have a DMM(digital multi meter) set your amp gain using a 50Hz -3dB tone. unhook the speaker from the amp and remove any bass boost on the HU and turn it to 3/4 volume(also set all your bass/treble to 0) connect the DMM to the speaker output on the amp and set it AC volts. slowly adjust your gain until the DMM reads 31.5-32 volts. thats 1000w. if its still not loud,then look at the box. grab a tape measure and measure up the box.L x W x H also port W x H and lenght of port and material thickness. hit the box calculator on the12volt.com and find the net volume and port tuning.more than likely the port will be either too small(not enough sq.inches) or the tuning is off,or the box isnt big enough or is too big...</p></blockquote><p></p>

[QUOTE="91caprice, post: 6806220, member: 614442"] ok if its a D2 then that changes some of my theory. but if its wired wrong youll be at a 4ohm load,and your only going to see around 400w. just double check on [URL="http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=1&I=22"]Subwoofer Wiring Diagrams, One 2 ohm Dual Voice Coil (DVC) Speaker[/URL] . if you are at 1ohm,then look at the gain settings. if you have a DMM(digital multi meter) set your amp gain using a 50Hz -3dB tone. unhook the speaker from the amp and remove any bass boost on the HU and turn it to 3/4 volume(also set all your bass/treble to 0) connect the DMM to the speaker output on the amp and set it AC volts. slowly adjust your gain until the DMM reads 31.5-32 volts. thats 1000w. if its still not loud,then look at the box. grab a tape measure and measure up the box.L x W x H also port W x H and lenght of port and material thickness. hit the box calculator on the12volt.com and find the net volume and port tuning.more than likely the port will be either too small(not enough sq.inches) or the tuning is off,or the box isnt big enough or is too big... [/QUOTE]

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