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<blockquote data-quote="paikiah" data-source="post: 239045" data-attributes="member: 545724">components usually need about 50w~100w RMS, and I only know high-priced components like the CDT eurosport that takes 150w RMS. Again, I think you might have confused yourself with the power figures. To calculate amp/speaker compatibility, it&#039;s better to use RMS figures (usually half of peak power).I&#039;m taking a wild guess that the Kenwood&#039;s rating would be RMS 1000w @ 4ohm mono. If this is the case, your comp VR&#039;s should be 4ohm DVC. Getting 2ohm DVC subs would overload the amplifier. (Lower your gains if you want the subs to last)With the 300~400w memphis amp, it&#039;s a little vague on what the actual ratings are. You&#039;d need to post a figure like100w x 2 @4ohms200w X 2 @ 2ohms400w X 1 @ 4ohm mono.That would make life easier. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifUpgrading to an XXX would be an incredible departure from entry level subs. Do be aware about the enormous power the XXX requires, and the ohmload can get quite frustrating for some, with the wrong amps.If you got yourself a 1200w amp, it&#039;ll draw about 80A at high volumes, something a stock alt should not be able to keep up with for a long period.</blockquote>

[QUOTE="paikiah, post: 239045, member: 545724"] components usually need about 50w~100w RMS, and I only know high-priced components like the CDT eurosport that takes 150w RMS. Again, I think you might have confused yourself with the power figures. To calculate amp/speaker compatibility, it's better to use RMS figures (usually half of peak power). I'm taking a wild guess that the Kenwood's rating would be RMS 1000w @ 4ohm mono. If this is the case, your comp VR's should be 4ohm DVC. Getting 2ohm DVC subs would overload the amplifier. (Lower your gains if you want the subs to last) With the 300~400w memphis amp, it's a little vague on what the actual ratings are. You'd need to post a figure like 100w x 2 @4ohms 200w X 2 @ 2ohms 400w X 1 @ 4ohm mono. That would make life easier. [IMG]//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif[/IMG] Upgrading to an XXX would be an incredible departure from entry level subs. Do be aware about the enormous power the XXX requires, and the ohmload can get quite frustrating for some, with the wrong amps. If you got yourself a 1200w amp, it'll draw about 80A at high volumes, something a stock alt should not be able to keep up with for a long period. [/QUOTE]

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