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Finding correct amp for subs

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=73809
Printed Date: May 15, 2025 at 1:57 AM


Topic: Finding correct amp for subs

Posted By: ntatma1
Subject: Finding correct amp for subs
Date Posted: March 02, 2006 at 8:33 PM

i am very new to car audio and forums, i was just given two new 12 inch aw1251t audiobahn subs in a bandpass box.

Specs: 45 oz. strontium magnet
power handling: 400 watts RMS
frequency response: 24Hz - 1kHz
Efficiency: 92.1 dB 
2” 4-layer asv voice coil
dual 4 ohm
2 or 8 ohm operation 

what size amp and wire needed for at 80-90% capacity constantly.



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N. is hot



Replies:

Posted By: arrow12
Date Posted: March 02, 2006 at 9:21 PM
You'll need about 700W to 800W RMS from your amp.  Is the 2 or 8 ohm operation for the whole unit or each sub?  If it's the whole unit, then get an amp stable at 2 ohms that produces 800W RMS.  If each sub is 2 or 8 ohm operational, then the total load will either be 1 or 4 ohms.  Look for an amp that pumps out 800W at 1 or 4 ohms.

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That's my opinion. Take it, leave it, or correct me.




Posted By: kirktcashalini
Date Posted: March 02, 2006 at 9:40 PM
If its audiobahn (ugggG) in a bandpass box, It is probably pre-wired, and if they are both dual 4 ohm subs, then ODDDDSSSS are, its pre-wired for 4 ohms. could be one, but highly unprobable...

Audiobahn watts are fake watts, I wouldnt spend too much trying to power them to capacity with a good brand amp unless you plan on blowing them. 500 real watts will probably blow those subs in time.

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99 Blazer LT.   Yellow Top. Big 3. Infinity Kappa Speakers All Around. Jensen CD/DVD flip out. 2 Infinity Kappa Perfect 12DVQs powered by a Alpine PDX600.1 (in one custom box, building a FG box)





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