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Discussion Starter · #1 ·
I am going to be pushing 2 12" JL Audio W0 and I was wondering what amp you guys would reccommend? I think the peak is 400w for each of the subs. My friend said Phoenix Gold amps are ba, but I don't know too much about amps, so can anyone help?
Thanks!
 

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a few questions:

1. what is your budget?

2. what are the impedance of your subs? they are either 8ohm or 4ohm.


I wouldnot send w0s more than 150 watts or so a piece, they work well with taht power, I would recommned a few based on waht you come up with for the two quetions...

thanks,

b
 

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Discussion Starter · #3 ·
Here are the specs:
Nominal Diameter: 12 inches (300 mm)
Continuous Power Handling: 125 Watts
Voice Coil: 1.38" diameter, 6-layer, Kapton former
Available Configurations: 4 ohm, 8 ohm or 12 ohm (Single Voice Coil)
Xmax (one-way, linear): 0.34" (8.6 mm)
Sealed Enclosure Range: 1.00-1.75 cu.ft. (28.3-49.5 liters)
Ported Enclosure Range: 1.75-2.75 cu.ft. (49.5-78.0 liters)
VRC² Technology: YES

My budget, well probably around 300$ give or take 50$
 

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so are you subs 4ohm, 8ohm, or 12ohms? look on the magnet of the sub and let me know...

b
 

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Hey Bing0, can you shed some light cause I'm confused on the whole ohm thing. If your speaker impedance is 4 ohms, should you have a deck and amp that is rated at 4 ohms also?
 

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I think all W0 will be 4 ohm, so if you have two, you will definitely connect them in parallel, so it will bring the impedance down to 2 ohm. You just need a nice 1 channel amp that can drive down to 2 ohm, and usually a good one can drive down to 1 ohm, and competition grade can go as low as 1/2 ohm.

If you budget is about 300, get the new JL Audio amp, it's a good amp. Alpine V12 is a good one too. a/d/s/ amp is also nice. Orion HCCA is also very nice. I don't know, but there are plenty of good amp out there, depends on what requirement you need like x-over, etc. and most importantly, what brand preference do you have.

legendluv, well to answer your question, if you speaker is rated at 4 ohm, that means the speaker impedance is 4 ohm. And, if the amp is rated at 4 ohm, that means the amp will push so much power at 4 ohm, and usually there is going to be another rating at 2 ohm. So, if you speaker is 4 ohm, you need to check your deck or amp to be able to supply adequate power to the speaker. Not necessarily have to be rated at 4 ohm too, but most probably you will find amps or decks that is rated at 4 ohm.
 

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well, as far as i remember, the w0 comes in at least 4ohm and 8ohm, and apparently, also 12 ohm.

but since you have the 4ohm version (the sub should be called something line 10w0-4), then you are limited to three options.

1. either a two channel amp that can be bridged down to 2ohm mono (harder to find)

2. a mono sub amp that is optimized to run at 2ohm load.

3. a four channel amp so you can bridge to do a certain wattage at 4ohms per channel.

4. two separate two channel amps and brdige each on a sub. (kinda a waste of money and space)

there are other way to possible run the subs but these are the only ways you can do and still optimize the power output of your amp.

for you, I would look to either option 2 or 3, I would say you dont need anywhere near 300 dolalrs if you go with option 3, I can get you a decent amp, that does about 175-185 by 2 bridged at 4ohms mono, for around 200 bucks. email me if you are intereested...:)

also, I would save the money and not go with brands such as ppi, zapco, jl...etc etc, you dont need such a fancy name to power w0s, look to good brands that dont cost as much such as lanzar opti, usacoustics, autotek ss and sx line...etc etc...

okay, time for the impedance explanation, pl;ease note that i am not a electrical engineer and I may be mis using some tech terms, but the overall concept is what I am after.

basically, each speaker presents a resistance to the amp, the lower the impedance (ohm rating), the less the resistance the speaker presents to the amp and therefor, the amp puts out more power to it, however, this also means tha the amp generates more heat, and as a result, if you get an amp that is not rated to run at a certain impedance, it will not be able to disssipate the heat and burn up.

so, if a speakre is 4ohm, it will present a 4ohm load to the amp, if its 2ohm, its 2ohm, so on and so forth. now, when it comes to powering more than one speaker to a certain channel, you can hook up speakers two ways, in series, or in parallel.

in series means like a flahs light, the negative terminal of a sub is connected to the positive of the other, and then the remaiing positve and the negative wiring to the amp (just imagine hooking up a whole bunch of subs this way too, positive ot negative...negative to positve..etc etc), what this will do is add up the impedance presented to the amp, so if you hook two 4ohm subs in series, you present a 8ohm load for the amp(easier to drive, less heat , but less power).

in paralell is basically, you hook up all the positves of all the speakres you have, and all the negatives of all the speakres, twisted them in to one big positve and one big negative, and hook them up to the amp, what this will do to the impedance is is you add up the RECIPRICAL of each speakers and then flip the fraction.

so if you have two 8ohm speakers, you hook them in paralle, it becomes : 1/8+1/8= 2/8, you flip it and it becomes 8/2 and thus 4ohms is what you get. :)

you can also apply this with speakres of different impedance ( a 6ohm and a 4ohm for example) but you dont really want to power subs that way since the subs will get different watts sent to them.

anyhow, that was a long winded way, just remember, the final impedance of your speaker(s), be it one, or a 10000000 hooked up in series or paralell or a combination of both(two pairs of subs hooked up in series to get a 8ohm load can be then hooked up in paralell with each other and get a final 4ohm load), they have to match the rating on the amp, most modern day amps are rated to do at least 2ohm in stereol and 4ohms mono, with a few selected high current models able to go all the way down to .25 or .5 ohms in stereo and .5 or 1 ohm in mono. :)


phew, I type too much :)

b
 
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