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determining what my amp can do


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anoble1 
Member - Posts: 15
Member spacespace
Joined: September 25, 2010
Location: Alabama, United States
Posted: December 27, 2011 at 1:10 PM / IP Logged  
Hi,
I need help determining what my amp can do. I am trying to get the most power out of my amp, so I was wondering if someone could tell me what kind of subs I need to buy. Whether it be Dual 2 ohms, Single 2 ohms, single 4 ohms or what.
I have a USA-2000
Specs say:
1000W @ 1ohm (per channel)
Amplifier Performance says
2000W @ 2 Ohms 115dB
Now, I am planning on getting 2 subwoofers. What ohm subwoofers do I need to get to achieve this 1000W per woofer? What are some choices?
I have found out the hard way that Dual 4 ohms will not work well with this amp. ha! That's why I need help.
Thank you so much!
jmelton86 
Gold - Posts: 1,228
Gold spacespace
Joined: February 07, 2007
Location: South Carolina, United States
Posted: December 27, 2011 at 1:42 PM / IP Logged  
I couldn't find any information via a quick search for that amp, but if it is in fact 2ohm stable bridged (OR 1ohm stable per channel) then you'll want x2 dual 2ohm subs.
Wire them like this (option 2, 2ohm load):
https://www.the12volt.com/caraudio/woofer_configurations.asp?Q=2&I=22#results
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anoble1 
Member - Posts: 15
Member spacespace
Joined: September 25, 2010
Location: Alabama, United States
Posted: December 27, 2011 at 2:01 PM / IP Logged  
Very nice. Quick question. How many watts would my amp be pushing out if i had 2 Dual 4 ohm subs?
jmelton86 
Gold - Posts: 1,228
Gold spacespace
Joined: February 07, 2007
Location: South Carolina, United States
Posted: December 27, 2011 at 2:03 PM / IP Logged  
A little over half of what it would output had you used dual 2ohm subs.
2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001
DYohn 
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Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: December 28, 2011 at 9:41 AM / IP Logged  
If you want to actually test your amplifier's output, you will need some tools.  Here's a good reference.  Anything else is just guesswork.
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