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Need help with ohms for amps
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<blockquote data-quote="OhmLoad" data-source="post: 8698144" data-attributes="member: 679086"><p>Sweet, you've done some research. 80prs. One of the best sounding Pioneer decks ever produced. You will notice that over time the face plate gets a little loose from vibrations. So as for your one 12" subwoofer having dual (two) 2ohm voice coils connected to a mono amp (this is very common by the way) will produce a 1ohm load on your amp when wired parallel. The guys installing it will know exactly what this means. I know it sounds kinda confusing but yes you have a dual 2ohm sub which cannot produce a 2ohm load on an amplifier by itself.The way you wire them to the amp determines the resistance. You can either double the resistance which your amplifer sees as a 4ohm load or you will half the resistance which is a 1ohm load. Almost all mono amps are capable of running stable at one ohm. Sundown underrates there subwoofers capabilities because they are competition grade. If they rate them lower they will be able to enter them in a lower class event even though they can do more. All of the comp brands do it so it's not like they are cheating. They can handle 1500watts RMS no problem. That Rockford is rated at 1395 rms at a one ohm load. This will be enough if you push the amp to its limits. I would recommend a higher powered amplifier rated at 2000+. It's better to have some left in the tank than to run out of gas. Hope this was a little helpful. Everybody has different amounts of knowledge on the subject. I try and overexplain rather than give a crappy two sentence answer which will leave you thinking "sure, okay, makes perfect sense. I'll just do as you say... even though I have no idea if you're full of it."</p></blockquote><p></p>
[QUOTE="OhmLoad, post: 8698144, member: 679086"] Sweet, you've done some research. 80prs. One of the best sounding Pioneer decks ever produced. You will notice that over time the face plate gets a little loose from vibrations. So as for your one 12" subwoofer having dual (two) 2ohm voice coils connected to a mono amp (this is very common by the way) will produce a 1ohm load on your amp when wired parallel. The guys installing it will know exactly what this means. I know it sounds kinda confusing but yes you have a dual 2ohm sub which cannot produce a 2ohm load on an amplifier by itself.The way you wire them to the amp determines the resistance. You can either double the resistance which your amplifer sees as a 4ohm load or you will half the resistance which is a 1ohm load. Almost all mono amps are capable of running stable at one ohm. Sundown underrates there subwoofers capabilities because they are competition grade. If they rate them lower they will be able to enter them in a lower class event even though they can do more. All of the comp brands do it so it's not like they are cheating. They can handle 1500watts RMS no problem. That Rockford is rated at 1395 rms at a one ohm load. This will be enough if you push the amp to its limits. I would recommend a higher powered amplifier rated at 2000+. It's better to have some left in the tank than to run out of gas. Hope this was a little helpful. Everybody has different amounts of knowledge on the subject. I try and overexplain rather than give a crappy two sentence answer which will leave you thinking "sure, okay, makes perfect sense. I'll just do as you say... even though I have no idea if you're full of it." [/QUOTE]
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