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10-29-2011, 12:39 PM
| | Registered User | | Join Date: Jun 2011 Location: Santa Rosa, CA USA | | | A Loudspeaker can be Destroyed by over powering it and under powering it.
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Wattz up - I read some TBer’s are asking what speaker cabs to use and debates about damaging loudspeaker by under powering them as well as over powering them and some people here are teaching watts don’t matter but according to Eminence watts do matter and a loudspeaker can be damaged by over powering it as well as by under powering it.
See Eminence‘s webpage Understanding Loudspeaker Data | Eminence Speaker and look under “POWER HANDLING”.
“Obviously, you need to choose a loudspeaker that is capable of handling the input power you are going to provide. By the same token, you can destroy a loudspeaker by using too little power.”
Picking the right speaker for your bass amp in a nutshell ~
“The ideal situation is to choose a loudspeaker that has the capability of handling more power than you can provide lending some headroom and insurance against thermal failure.”
Last edited by Joe Louvar : 10-29-2011 at 12:41 PM.
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10-29-2011, 12:44 PM
|  | Registered User | | Join Date: Jul 2006 Location: Norway | | | This can get ugly.
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10-29-2011, 12:46 PM
| | | | Popcorn anyone? |
10-29-2011, 12:47 PM
| | Registered User | | Join Date: Feb 2010 Location: Nude Zealand | | Quote:
Originally Posted by 4-string  This can get ugly. | I have a sneaking suspicion that may be the intention.
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NS Design CR4M EUB / TC Electronic RH450 & Markbass F1 / BFM Jack 112 |
10-29-2011, 12:51 PM
| | Registered User | | Join Date: Jun 2011 Location: Santa Rosa, CA USA | | Quote:
Originally Posted by 4-string This can get ugly. | Facts are facts and any debate will have to be between them and Eminence.  |
10-29-2011, 12:51 PM
|  | http://greenboy.us/forum/
greenboy designs: fEARful, bassic, dually, crazy88 etc | | Join Date: Dec 2000 Location: remote mountain cabin Montana | | Quote:
Originally Posted by Zoa Popcorn anyone? | Try the buttered hemp cone instead. It's been re-pulped. |
10-29-2011, 12:52 PM
|  | vintage bass nut
John K Custom Basses | | Join Date: Feb 2008 Location: Thousand Oaks, CA | | | wow. thanks for the info Joe. i guess i'd better be careful not to blow my speakers when my amp's volume is turned down lower than it should be, as i'd hate to underpower them and ruin them. |
10-29-2011, 12:55 PM
| | Registered User | | Join Date: Jul 2006 Location: Norway | | Quote: |
Originally Posted by Joe Louvar
Facts are facts and any debate will have to be between them and Eminence. | If only someone from Eminence would sign up and post here.
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Out of time - out of tune |
10-29-2011, 12:55 PM
| | | Quote:
Originally Posted by greenboy Try the buttered hemp cone instead. It's been re-pulped. | Ah yes, but should I get the 10 or 15 inch hemp cone? Which will get me more flavor for my butter? Will the 15's flavor be deeper? |
10-29-2011, 12:56 PM
|  | Registered User | | Join Date: May 2006 Location: Arlington Heights, IL | | Quote:
Originally Posted by johnk_10 wow. thanks for the info Joe. i guess i'd better be careful not to blow my speakers when my amp's volume is turned down lower than it should be, as i'd hate to underpower them and ruin them. | We have to blast our rigs at full volume every time we play to ensure we are not "underpowering" them. Trying out a bass rig at Guitar Center at low volumes is not a good idea because we will underpower it again. Maybe the guitar players GC already know this and they play those rigs so DAMN LOUD because of this information??!  |
10-29-2011, 12:58 PM
| | | | Eminence makes drivers for many applications.
I interpret their web blurbs as getting you to think about your application and the evidence for the situation. Hopefully getting you to do more research.
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"The good thing about science is that it’s true whether or not you believe in it." - Neil DeGrasse Tyson 2011
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10-29-2011, 01:00 PM
| | Registered User | | Join Date: May 2010 Location: Fairfield Iowa | | | The last time I blew my drivers it was a shorted speaker cable. It was shooting sparks and it was spectacular. |
10-29-2011, 01:20 PM
|  | Registered User | | Join Date: Feb 2005 Location: Seweracuse, NY | | | This whole thread premise is underpowered.
__________________ fEARful: for those who want something better: http://greenboy.us/fEARful/ For Sale (locally only): Bergantino HT115 with Cover: $500.00. PM me about it.
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10-29-2011, 01:37 PM
| | | | This one time, at band camp, my speaker caught fire. Because the amp was turned off. |
10-29-2011, 01:40 PM
| | Registered User | | Join Date: Jun 2011 Location: Santa Rosa, CA USA | | | I don’t understand the under powering either but that is what Eminence says and I think it’s obvious to most people loudspeakers can be damaged by over powering them. |
10-29-2011, 01:42 PM
|  | Say something once, why say it again? | | Join Date: May 2011 Location: Saint Johns, Michigan | | Quote:
Originally Posted by makohund This one time, at band camp, my speaker caught fire. Because the amp was turned off. | I am so glad you understand that. And you're right: turning off your amp is under-powering the speaker, so it will blow immediately.
Truth is, you CANNOT harm a speaker by under-powering it. Low powered amps will often send a dirty signal when pushed hard in an attempt to get usable volume from it, and that will blow speakers. It is the junky signal, not the power, that is the problem.
__________________ Fritz (CV #92, P&W #982, PBass #804, GB #366, RQ #13, JimmyM #5) Louie Longoria & Cowboy Intervention Quote:
Originally Posted by edfriedland I just want to blend into the rhythm section and play some roots and fifths. | |
10-29-2011, 01:50 PM
|  | OVNIFX
EXAR pedals rep for North & Central America | | Join Date: Oct 2005 Location: PDX, OR | | | ...And the myth just keeps going, and going, and going... |
10-29-2011, 01:51 PM
|  | Registered User | | Join Date: Aug 2007 Location: Toronto Ontario Canada | | Quote:
Originally Posted by tekdiver500ft Truth is, you CANNOT harm a speaker by under-powering it. Low powered amps will often send a dirty signal when pushed hard in an attempt to get usable volume from it, and that will blow speakers. It is the junky signal, not the power, that is the problem. | First point is correct, second not so much. The speaker will reproduce what is sent to it, even square waves, without a problem unless the signal goes past the drivers mechanical limits.
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Paul
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10-29-2011, 01:56 PM
| | Registered User | | Join Date: Feb 2010 Location: Nude Zealand | | Quote:
Originally Posted by bongomania ...And the myth just keeps going, and going, and going... | Indeed. It's an unfortunate sentence for the Eminence copy writer to have included, because it's not consistent with anything else they say in the very same paragraph, which otherwise refers only to the potential dangers of overpowering drivers.
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Christopher 401T / Gage Realist Soundclip / Fishman Pro-EQ Platinum Bass / fdeck HPF-Pre Series 2
NS Design CR4M EUB / TC Electronic RH450 & Markbass F1 / BFM Jack 112 |
10-29-2011, 01:59 PM
| | Registered User | | Join Date: Jun 2011 Location: Santa Rosa, CA USA | | Quote:
Originally Posted by 4-string If only someone from Eminence would sign up and post here. | I didn’t know they weren’t - maybe now they’ll signup and post. | | Thread Tools | Search this Thread | | | | 
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