General Discussion General discussion about all things car audio, from pioneer, orion, alpine and eclipse.

Is it true?

Old 08-29-2006, 01:59 AM
  #1  
50 Watt CAFz'r
Thread Starter
 
Join Date: Aug 2006
Posts: 52
Is it true?

It's better to run an amp at 3/4 of the max RMS of subwoofers?
I have two 500wrms sub so 1000wrms total...what if i run an amp at 1100wrms?
krsolutions is offline  
Old 08-29-2006, 02:00 AM
  #2  
4000 Watt CAFz'r
iTrader: (7)
 
Prolifik's Avatar
 
Join Date: Jan 2005
Posts: 4,180
nothing's gonna happen
Prolifik is offline  
Old 08-29-2006, 02:01 AM
  #3  
50 Watt CAFz'r
Thread Starter
 
Join Date: Aug 2006
Posts: 52
Will I see a big difference if my last amp was shooting 600wrms? now i'm going to 1100 wrms, in terms of DB and clarity?
krsolutions is offline  
Old 08-29-2006, 08:41 AM
  #4  
50 Watt CAFz'r
 
Default User's Avatar
 
Join Date: Jul 2006
Posts: 80
Originally Posted by Prolifik
nothing's gonna happen
what he said


Originally Posted by krsolutions
Will I see a big difference if my last amp was shooting 600wrms? now i'm going to 1100 wrms, in terms of DB and clarity?
edit: didnt read the thread properly
Default User is offline  
Old 08-29-2006, 08:49 AM
  #5  
50 Watt CAFz'r
 
Join Date: Jan 2006
Posts: 63
You are better off having more power and using less of it, the amp will work less and be more efficent in the perfect world.
Stuart is offline  
Old 08-29-2006, 09:37 AM
  #6  
4000 Watt CAFz'r
iTrader: (3)
 
Haunz's Avatar
 
Join Date: Jun 2002
Posts: 4,218
^ actually most amplifiers are most efficient and run cooler when they are at full voltage swing

powerhandeling depends on the subs, box, and duration... ie. you may find your subs can take 2kw for short periods... or you could end up with blown subs using 1/2 rated power on a long road trip....
Haunz is offline  
Old 08-29-2006, 09:50 AM
  #7  
4000 Watt CAFz'r
iTrader: (7)
 
Prolifik's Avatar
 
Join Date: Jan 2005
Posts: 4,180
yah you will see a gain of about 1.5 db if the gain is linear
Prolifik is offline  
Old 08-29-2006, 11:24 AM
  #8  
50 Watt CAFz'r
iTrader: (1)
 
Join Date: Jul 2006
Posts: 56
Originally Posted by Haunz
^ actually most amplifiers are most efficient and run cooler when they are at full voltage swing
Thats true but only for a class B amp (output stage). If your amp is putting out 50% of its max voltage, half the votage is across the transistors/mosfets (dissipated as heat) and the other half is going to your sub.

Thats why class D amps are so efficient. Then send out pulses at the amps max voltage, later filtered into waves with kinda a crossover network and sent to the sub.
Folk128 is offline  
Old 08-29-2006, 11:32 AM
  #9  
50 Watt CAFz'r
iTrader: (1)
 
Join Date: Jul 2006
Posts: 56
Youll be fine running that amp. At least youll have some peace of mind knowing your subs are getting clean power, clipping causes a lot of heat. Plus your probably not running the amp at 14.4v anyway to get that rated power output, assuming its rated at 14.4v, usually is.
Folk128 is offline  
Old 08-29-2006, 12:14 PM
  #10  
50 Watt CAFz'r
Thread Starter
 
Join Date: Aug 2006
Posts: 52
thankx guys I am getting the amp install as we speak , can't wait to see the difference.


it's for Two rockford fosgate P3 rated at 500wrms.
I had a 551s before, now it's gonna be a 1051s.
krsolutions is offline  

Thread Tools
Search this Thread
Quick Reply: Is it true?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.