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

Mono Block Amp Question

Old Nov 5, 2007 | 02:45 PM
  #21  
Sasha's Avatar
1000 Watt CAFz'r
iTrader: (10)
 
Joined: Oct 2005
Posts: 1,418
Originally Posted by Sasha
Mine says: 850 watts @ 80 amps eff 75%, 1000 watts @ 113 amps eff 68%, 1000 watts @ 132 amps eff 53%.
Just noticed I have listed incomplete quote. My amp is:

850 watts @ 80 amps eff 75% @ 4 ohms

1000 watts @ 113 amps eff 68% @ 2 ohms

1000 watts @ 132 amps eff 53% @ 1 ohm
Old Nov 5, 2007 | 03:45 PM
  #22  
Prolifik's Avatar
4000 Watt CAFz'r
iTrader: (7)
 
Joined: Jan 2005
Posts: 4,177
Originally Posted by Sasha
...And if you only want rumble, then you can take suggestions from Prolifik, and the likes. Yuli seems to have large forum recognition in SPL area, though his forum manners are lagging.
u do know that everything you said there about running an amp at 1 ohm is total bs, right?

and yes, i need a forum etiquette guide.
Old Nov 5, 2007 | 05:15 PM
  #23  
Sasha's Avatar
1000 Watt CAFz'r
iTrader: (10)
 
Joined: Oct 2005
Posts: 1,418
Originally Posted by Prolifik
u do know that everything you said there about running an amp at 1 ohm is total bs, right?
Sounds like Matt is going to find out the hard way, if he listens to you.
Old Nov 5, 2007 | 05:32 PM
  #24  
Prolifik's Avatar
4000 Watt CAFz'r
iTrader: (7)
 
Joined: Jan 2005
Posts: 4,177
so he should run his amp at 2 ohm b/c its better?

It is not about ohm load, it is all about the draw. Just b/c your amps efficiency drops dramatically doesnt mean it applies to all class D amps, it only speaks for the amp u are using. I know i would not want to use an amp that does same power at 1 or 2 ohm while drawing more current and being less efficient at 1 ohm than 2, what is the point of an amp like that?

Matt can get a normal 1 ohm stable 600 watt amp and he will be just fine like the other 99.8% of people out there.

Last edited by Prolifik; Nov 5, 2007 at 05:37 PM.
Old Nov 5, 2007 | 05:48 PM
  #25  
Sasha's Avatar
1000 Watt CAFz'r
iTrader: (10)
 
Joined: Oct 2005
Posts: 1,418
It is more important to see if the damping factor is lower than 25 at 1 ohm for sound quality. And I specified that. I suggest Matt pays attention to that more, as he really has no choice in load differences anyways, as he already has the subs.

As far as efficiency goes under 1 or 2 ohm loads, there is no way 1 ohm load is equally efficient percentage-wise, as any amp at 1 ohm will work harder, therefore creating more heat, therefore giving up efficiency. Simple physics.

Last edited by Sasha; Nov 5, 2007 at 05:53 PM.
Old Nov 5, 2007 | 06:12 PM
  #26  
Prolifik's Avatar
4000 Watt CAFz'r
iTrader: (7)
 
Joined: Jan 2005
Posts: 4,177
and now that Matt's got all kinds of advice, let's see what he decides to go with.
Old Nov 5, 2007 | 09:02 PM
  #27  
matt_s's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Aug 2007
Posts: 54
Well as of right now I'm SUPER confused. So what your saying is that... well I'm just going to be honest I don't really know what your saying. But basically any Amp that can put out 500w RMS at 1 or 2 ohms will work just fine for me?
Old Nov 5, 2007 | 09:27 PM
  #28  
Sasha's Avatar
1000 Watt CAFz'r
iTrader: (10)
 
Joined: Oct 2005
Posts: 1,418
Ok, Matt! I think this is what you might want to go with, and I dont think I will get much apposition for suggesting the following:

1. Look for a 1-channel amp(monoblock Class D)
2. Amp must be able to work at 1 ohm (i.e. 1 ohm stable)
3. It would be nice to have the amp produce up to 1000 watts rms at 1 ohm(p.s same amp would produce less at 2 ohms and even less at 4 ohms)
4. If amplifier manufacturer tells you the damping factor, go for the one, which is rated at least 100(look for the info on the specifications sheet)
5. Go for a reputable brand name. Here is a list you may find usefull

http://forum.ecoustics.com/bbs/messages/34579/329117.html
Old Nov 5, 2007 | 11:12 PM
  #29  
veeman's Avatar
2000 Watt CAFz'r
iTrader: (3)
 
Joined: Nov 2004
Posts: 2,455
^^^see now we're helping Matt....Matt's happy and will tell all his friends what a nice bunch of guys we are!
Old Nov 6, 2007 | 12:23 AM
  #30  
matt_s's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Aug 2007
Posts: 54
now if i'm not mistaken if i were to look for a mono block amp that is capable of connecting 2 subs with to connections on the out side wouldn't that give me more options? b/c then i can run the subs at 2ohms and still get the same out of the subs?

Thread Tools
Search this Thread

All times are GMT -5. The time now is 03:03 PM.