Overpower vs Underpower Sub?

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mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: May 12, 2004 at 4:26 AM / IP Logged

Guys need some info on what do u mean by underpower the sub?? I am thinking of gettting 2X 12" they are rated at 150WRMS each and i was thinking of driving each sub with 75WRMS is that work ok, or should i just buy 1 sub and use 150WRMS to drive it??? Which give better result??

Cheers :)

doc t

Copper - Posts: 169

Joined: April 11, 2004

Location: South Carolina, United States

Posted: May 12, 2004 at 5:08 AM / IP Logged

in a matter of speaking, in my opinion, it is always better to overpower a sub vise underpower it. i'm driving my 2 subs @ 550wrms and there rated @ 150wrms each, have always done this with no problems.

forbidden

Platinum - Posts: 5,353

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: May 12, 2004 at 1:53 PM / IP Logged

You can underpower a sub all day long as long as the gain is set properly and the system is used properly. If you want it louder, find a bigger amp.

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nottelling

Member - Posts: 13

Joined: April 10, 2004

Location: United States

Posted: May 12, 2004 at 3:35 PM / IP Logged

i have 2 200 watt rms subs any opinons on how much power they should have put to em?

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: May 12, 2004 at 3:38 PM / IP Logged

nottelling wrote:

i have 2 200 watt rms subs any opinons on how much power they should have put to em?

What's their make/model and what kind/size of enclosure are they in?

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djMINIoompa

Copper - Posts: 125

Joined: May 01, 2004

Location: United States

Posted: May 12, 2004 at 7:13 PM / IP Logged

back to mrdragon's question....There are more cases of blowing subs from underpowering them. However, forbidden makes a very valid point. You must set the gain right. Whether over powering or under powering, you still ahve the same chance to blow the subs if the gain isnt set properly. I would rather have more power, this not only get the full potential out of the subs, but it also gives you room to expand and upgrade your system.

pureRF

Silver - Posts: 619

Joined: July 22, 2003

Location: United States

Posted: May 12, 2004 at 10:18 PM / IP Logged

are they SVC or DVC and are they 2 or 4 ohm?

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xetmes

Silver - Posts: 586

Joined: May 18, 2003

Posted: May 12, 2004 at 10:23 PM / IP Logged

forbidden wrote:

You can underpower a sub all day long as long as the gain is set properly and the system is used properly. If you want it louder, find a bigger amp.

Exactly. I really hate the term "underpowering", it has nothing to do with the power, if the amplifier is not clipping there is no problem. The clipping of the amp is what causes the destruction of the speaker, keep the signal distortion free and you can run a 30 inch sub at one watt forever..

mrdragon

Copper - Posts: 121

Joined: October 08, 2003

Location: Australia

Posted: May 13, 2004 at 1:43 AM / IP Logged

Ok how do u set the gain properly?? the sub i am thinking of getting is a 4 Ohms SVC.

Cheers :)

casedeez

Copper - Posts: 160

Joined: April 21, 2004

Location: United States

Posted: May 13, 2004 at 2:15 AM / IP Logged

Hey mrdragon, take a look at my most recent post. I list three differant ways to do it, as far as which way is the best, I have found thats hard to find here. Your best bet may be to do a search either on here (you'll find two posts about setting gain) or google it. The JL audio page has some tutorials but it has a lot to do with thier amps. If by chance your able to uncover something which I havnt found by all means please let me know.

I hope this helps at least a little bit.

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