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<blockquote data-quote="zane" data-source="post: 6971" data-attributes="member: 540617">Once again, Thats what it is supposed to do- hence the term &quot;Accoustic Suspension&quot; (Sealed Enclosure) The woofer is dependant upon the air in the enclosure providing the correct ammount of resistance to the cone in order to promote excursion- thus output.&nbsp; &nbsp; Basic Physics.....A rectangular box is perfectly fine.lbzrider14- Bridging your amplifier really depends on weather or not your amplifier can handle the final ohm load the woofers provide it.Which series of Rockford 12&#039;s are you running?SVC or DVC?VC resistance? (ohms)Now the amp- check on its spec sheet- is it at least 2 ohm mono bridgeable?Running the subs either mono or stereo will not have any real time effect on the sound; mostly- if you are able to run them mono to the amp- the amplifier may be able to work a little harder and provide a little more output. - this comes from lowering the final ohm load the amplifier see&#039;s.As for the rattling trunk bit and box positions- that one you are on your own with,&nbsp; &nbsp; Basically- try moving your enclosure arround and listening to it in different positions before you permanently install it.&nbsp; Your ears will tell you correctly.&nbsp;&nbsp; As for the rattling- - I would suggest looking into a dampening material such as Dynamat or High temp mastic to apply to your trunk- this usually aids in keeping unwanted resonance away.take it easy,-zane</blockquote>

[QUOTE="zane, post: 6971, member: 540617"] Once again, Thats what it is supposed to do- hence the term "Accoustic Suspension" (Sealed Enclosure) The woofer is dependant upon the air in the enclosure providing the correct ammount of resistance to the cone in order to promote excursion- thus output. Basic Physics..... A rectangular box is perfectly fine. lbzrider14- Bridging your amplifier really depends on weather or not your amplifier can handle the final ohm load the woofers provide it. Which series of Rockford 12's are you running? SVC or DVC? VC resistance? (ohms) Now the amp- check on its spec sheet- is it at least 2 ohm mono bridgeable? Running the subs either mono or stereo will not have any real time effect on the sound; mostly- if you are able to run them mono to the amp- the amplifier may be able to work a little harder and provide a little more output. - this comes from lowering the final ohm load the amplifier see's. As for the rattling trunk bit and box positions- that one you are on your own with, Basically- try moving your enclosure arround and listening to it in different positions before you permanently install it. Your ears will tell you correctly. As for the rattling- - I would suggest looking into a dampening material such as Dynamat or High temp mastic to apply to your trunk- this usually aids in keeping unwanted resonance away. take it easy, -zane [/QUOTE]

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