Hey everyone,
I was just wondering if any of you knew of any good sq amps that could push 110w RMS x 2 @ 3 ohms, I know I should probabably search the internet for hours or something instead of asking, but I hardly know where to start. I also need an amp that pushes 225w RMS x 2 @ 3 ohms.
Yes, I know that an amp that pushes 2000wrms @ 1 ohm pushes 1000wrms @ 2 ohms and 500wrms @ 4 ohms, but not all company's rate their amps that way, and some don't even follow that rule at all - for example some amps I've seen don't even double power pushed when the ohm load is cut in half (I don't understand why not), so how could one find how much power is being pushed in between 4 ohms and 2 ohms in that situation? Who knows, that's why I call upon the power and knowledge of the12volt.com for help and advice.
Thanks
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1992 Lincoln Towncar Cartier
4.6L SOHC Dual Exhaust
Stereo System - Working On It :)
OK well all I have to say is JL Audio amplifiers. JL audio makes most of there subs at a 3 ohms so there amps can take anything you put in front of them from 1.5 ohms to 4 ohms. for each of those applications you have you could run a JL 250/1 for each. The amps made by JL Audio are unbelievable. Check out any of the reviews for the "/" amps. Hope that helps....
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Sonic
Pioneer AVH-P4000DVD
Zapco 360.4
Zapco 500.1
Zapco SP-4SL Processor
Two JL 10 W3v3d2
Alumapro 15 Farad Cap
Easiest "off-the-hip" method is to simply take half the difference of the 2 and 4 ohm ratings, then add that to the 4ohm rating. It may not always be "exact", but it will get you close enough to the right figure.
Example 1 (Multi-Channel amp)
200 x 2 @ 4ohms and 400 x 2 @ 2ohms would equate to apx 300 x 2 @ 3ohms.
[(400-200)/2]+200 = [200/2]+200 = 100+200 = 300
Example 2 (Multi-Channel amp)
200 x 2 @ 4ohms and 300 x 2 @ 2ohms would equate to apx 250 x 2 @ 3ohms.
[(300-200)/2]+200 = [100/2]+200 = 50+200 = 250
Example 3 (Mono amp)
300 x 1 @ 4ohms and 600 x 1 @ 2ohms would equate to apx 450 x 1 @ 3ohms.
[(600-300)/2]+300 = [300/2]+300 = 150+300 = 450
Remember to use the "per channel" RMS ratings.
Do Not use the 4ohm mono/bridged rating if you are looking at a 2 or 4 channel amp since most multi-channel amps are not stable below 4ohms mono/bridged.
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Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
Donate to the12volt.comthanks for the quick replies, I'll have to check out the JLAudio amps, and thanks wvsquirrel for the advice on calculating a 3 ohm load, that's how I thought one would do it, but it still doesn't explain why some amps don't double wattage pushed when resistance is cut in half.
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1992 Lincoln Towncar Cartier
4.6L SOHC Dual Exhaust
Stereo System - Working On It :)