2-4 ohms
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2nd Gear Member
Joined: Aug 2005
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2-4 ohms
so i have one JL 12W3V2-D4 and i want to get an amp but im not to good with this type of stuff. i know ohms are a measure of resistance so when my sub says 4 ohms and 500w peak. should i look for a amp with 500w at 4ohams or with 500w at 2ohms... im so lost
6th Gear Member
Joined: Feb 2006
Posts: 6,936
From:
RE: 2-4 ohms
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
2nd Gear Member
Joined: Dec 2006
Posts: 379
From:
RE: 2-4 ohms
ORIGINAL: ttocs
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
3rd Gear Member
Joined: Dec 2006
Posts: 576
From: Earth
RE: 2-4 ohms
ORIGINAL: 97tunedmustang
Your kinda right at first but not really. If he got a 2ohmamp it would work fine for one subbut if you triedto wire the speakers properly in a dual sub setup itd be physicallyimpossible to run 2ohm or 1.Theirfore you'd be stuck with 4ohm as the only viable option the amp would support and youd end up with half the rms output from the original single speaker,If he is smart he'll get a strong 1ohm stable amp like the hifonics brutus bxi606. He can wire the one subwoofer in series and get 300rms out of that amp for the subwoofer which is 300rms also. Then because its 1ohm stable if he gets another just like it he can wire both of them in parallel and run 1ohm stable at 600rms to both which is perfectly matched.
ORIGINAL: ttocs
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
6th Gear Member
Joined: Feb 2006
Posts: 6,936
From:
RE: 2-4 ohms
ORIGINAL: 97tunedmustang
Your kinda right at first but not really. If he got a 2ohmamp it would work fine for one subbut if you triedto wire the speakers properly in a dual sub setup itd be physicallyimpossible to run 2ohm or 1.Theirfore you'd be stuck with 4ohm as the only viable option the amp would support and youd end up with half the rms output from the original single speaker,If he is smart he'll get a strong 1ohm stable amp like the hifonics brutus bxi606. He can wire the one subwoofer in series and get 300rms out of that amp for the subwoofer which is 300rms also. Then because its 1ohm stable if he gets another just like it he can wire both of them in parallel and run 1ohm stable at 600rms to both which is perfectly matched.
ORIGINAL: ttocs
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
you will want an amp that will give you maximum output at 4 ohms since you have a 4 ohm speaker. If you get an amp that is 2 ohm stable you can use it as well, and also add another sub later if you want with out replacing the amp.
1st Gear Member
Joined: Dec 2006
Posts: 85
From: Rochester, NY
RE: 2-4 ohms
Alright, after looking up the sub, you have a 4ohm DVC sub that has RMS rating of 300W. So you want to look for a D-class (mono) amp that puts out 1 x 300WRMS @ 2ohms. Like 97tunedmustang said, the HiFonics BXi-606 would work well with this setup, and also would work if you were to add another sub later on.
6th Gear Member
Joined: Feb 2006
Posts: 6,936
From:
RE: 2-4 ohms
I disagree. if he gets that, he will be getting 1/2 half that power of the amp, or 150 watts rms to the sub. Then when he upgrades, he will get 300 watts power out, to 2 subs again leaving him with 150 watts per speaker. It is easier to blow a speaker with toolittle power then it is with too much. Driving the speaker with too little power causes the signal to clip, or basically feed your speaker a DC signal and there is nothing worse then giving a speaker DC voltage.
he needs an amp that is rated at 300 watts at 4 ohms rms, and 600 watts at 2 ohms.
he needs an amp that is rated at 300 watts at 4 ohms rms, and 600 watts at 2 ohms.
ORIGINAL: 96Firebird
Alright, after looking up the sub, you have a 4ohm DVC sub that has RMS rating of 300W. So you want to look for a D-class (mono) amp that puts out 1 x 300WRMS @ 2ohms. Like 97tunedmustang said, the HiFonics BXi-606 would work well with this setup, and also would work if you were to add another sub later on.
Alright, after looking up the sub, you have a 4ohm DVC sub that has RMS rating of 300W. So you want to look for a D-class (mono) amp that puts out 1 x 300WRMS @ 2ohms. Like 97tunedmustang said, the HiFonics BXi-606 would work well with this setup, and also would work if you were to add another sub later on.
2nd Gear Member
Joined: Dec 2006
Posts: 379
From:
RE: 2-4 ohms
ORIGINAL: ttocs
I disagree. if he gets that, he will be getting 1/2 half that power of the amp, or 150 watts rms to the sub. Then when he upgrades, he will get 300 watts power out, to 2 subs again leaving him with 150 watts per speaker. It is easier to blow a speaker with toolittle power then it is with too much. Driving the speaker with too little power causes the signal to clip, or basically feed your speaker a DC signal and there is nothing worse then giving a speaker DC voltage.
he needs an amp that is rated at 300 watts at 4 ohms rms, and 600 watts at 2 ohms.
I disagree. if he gets that, he will be getting 1/2 half that power of the amp, or 150 watts rms to the sub. Then when he upgrades, he will get 300 watts power out, to 2 subs again leaving him with 150 watts per speaker. It is easier to blow a speaker with toolittle power then it is with too much. Driving the speaker with too little power causes the signal to clip, or basically feed your speaker a DC signal and there is nothing worse then giving a speaker DC voltage.
he needs an amp that is rated at 300 watts at 4 ohms rms, and 600 watts at 2 ohms.
ORIGINAL: 96Firebird
Alright, after looking up the sub, you have a 4ohm DVC sub that has RMS rating of 300W. So you want to look for a D-class (mono) amp that puts out 1 x 300WRMS @ 2ohms. Like 97tunedmustang said, the HiFonics BXi-606 would work well with this setup, and also would work if you were to add another sub later on.
Alright, after looking up the sub, you have a 4ohm DVC sub that has RMS rating of 300W. So you want to look for a D-class (mono) amp that puts out 1 x 300WRMS @ 2ohms. Like 97tunedmustang said, the HiFonics BXi-606 would work well with this setup, and also would work if you were to add another sub later on.
If he has just the one subwoofer he can wire both voice coils in parallel causing a 2ohm load which gives him 300rms from that amp, which is the subwoofers rms rating. If he runs 300rms to one of those voice coils at 4ohmhe'll blow it. each vc individually handles half the subs supported rms, and he would be doubling its handling capacity. not smart
Later down the line ifyou want to get two subwoofers that are both dual 4ohm vcyou can wire them bothin parallel creating a 1ohm load and the amp then will put out 600rms also matching the subwoofers combinedrms rating.
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