Car Audio Technical Discussions Dedicated to the technical side of Car Audio.

Amplifier Power To Sub - 150 RMS A Noticeable Difference?

Old 01-27-2009, 07:41 PM
  #1  
Level 1 Supporter
Thread Starter
iTrader: (9)
 
DaVibe's Avatar
 
Join Date: Mar 2006
Posts: 1,261
Cool Amplifier Power To Sub - 150 RMS A Noticeable Difference?

I know it's a pretty specific question but I think it's a good round number anyways so I'm going to ask ...

Lets say my single sub is calling for 600 RMS ...
My amplifier is running at 450 RMS ... I'm off by 150 RMS for this particular sub.

If I matched them perfectly ... 600 amp for a 600 sub ... would there be a noticeable difference? Sound, response, power? (In comparison to the 450 amp to the 600 sub).

Furthermore, just for fun, lets just say we were talking about 2 subs ... that's 150RMS below what's being called for on both subs.
So that's a 300 RMS difference (ultimately) ...

Thoughts?
DaVibe is offline  
Old 01-27-2009, 09:58 PM
  #2  
2000 Watt CAFz'r
iTrader: (6)
 
jalat's Avatar
 
Join Date: Mar 2008
Posts: 2,736
Its not going to make a comnsiderable difference if you have a well designed enclosure. for instanced, if you under powering a sub by a large amount, you would build a bit of a larger enclosure to give a deeper sound around the enclosures 'tuned freq.' when pushing more than rated rms power to a sub, usually you decrease the amount of cubic feet to yeild the woofers mechanical failure. so to answer your question, 150rms IMO wont make a huge difference.
jalat is offline  
Old 01-27-2009, 11:22 PM
  #3  
50 Watt CAFz'r
 
godzilla1978's Avatar
 
Join Date: May 2007
Posts: 384
Originally Posted by jalat
Its not going to make a comnsiderable difference if you have a well designed enclosure. for instanced, if you under powering a sub by a large amount, you would build a bit of a larger enclosure to give a deeper sound around the enclosures 'tuned freq.' when pushing more than rated rms power to a sub, usually you decrease the amount of cubic feet to yeild the woofers mechanical failure. so to answer your question, 150rms IMO wont make a huge difference.
Not huge but noticeable none the less. Your underpowering your sub by 25% which is significant. If you get a larger amp that has that 150rms more you should be able to notice that the sub will have slightly more control(accuracy what ever you want to call it)50rms no big deal, 150rms not a huge deal but still noticeable.That is assuming of course that everything else in the system is in good working order.
godzilla1978 is offline  
Old 01-28-2009, 09:38 PM
  #4  
2000 Watt CAFz'r
 
maltesechicken's Avatar
 
Join Date: Jan 2001
Posts: 2,026
I personally think it's best to over power a sub by 25%. so if you can give a 600WRMS sub, a clean 750 that will make it perform wonderfully - just don't clip the amp. As long as the sub is from a good company over powering is a good idea (Pyle, and Legacy need not apply)
maltesechicken is offline  
Old 01-28-2009, 09:56 PM
  #5  
4000 Watt CAFz'r
iTrader: (3)
 
Haunz's Avatar
 
Join Date: Jun 2002
Posts: 4,218
You would gain about 1db which should sound slightly louder...
Haunz is offline  
Old 01-29-2009, 07:43 PM
  #6  
50 Watt CAFz'r
 
godzilla1978's Avatar
 
Join Date: May 2007
Posts: 384
generally 3db change is the least most people notice. You would have to be very sensitive to notice 1db. The extra power would most likely NOT make the sub louder, but the sub would be controlled better which would mean better sound quality. Sound quality is a little easier to notice IMO. By the way to get 3db more output you would have to double your displacement(add a sub) or doulble your power.
godzilla1978 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
anoble1
Car Audio Technical Discussions
4
08-13-2011 11:30 AM
n.russell
General Discussion
10
08-09-2011 09:17 PM
midnight racer
Car Audio Wanted (WTB)
0
06-16-2010 04:53 PM
JeffersonC
Enclosure Design & Construction Help
1
03-11-2007 08:29 PM


Thread Tools
Search this Thread
Quick Reply: Amplifier Power To Sub - 150 RMS A Noticeable Difference?



All times are GMT -5. The time now is 02:26 AM.