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View Full Version : JL W0 weak *** speaker



Gh0zt36
07-01-2011, 10:19 PM
Review of Subwoofer or Speaker:


So i got this JL W0 and i have it hooked up to a A802 directed amp and the amp only pushes 400rms i think and every time i turn up the tunes i can smell voice coil burning off the sub... its sad i thought JL was supposed to be tougher than your average bear. since the jl is so weak can anyone recommend a good sub that will take 400 watts and make a nice sound doing it please? by the way its in a basswerkz ported enclosure

The_Grimy_One
07-01-2011, 10:23 PM
That sub RMS at like 200 or less. You bought the lowest JL sub made... ???

NoLoud4U
07-01-2011, 10:27 PM
The second lowest.. Plus shity box plus ( i guess ) improper amp settings

pro-rabbit
07-01-2011, 10:29 PM
yea, my bet is on the incorrect settings, thus clipping the signal in horrible ways.

Also it is a W0, what did you expect? they are good subs if used correctly though.

Gh0zt36
07-01-2011, 10:33 PM
well i figured even the lowest jl would still be good and i read the rms max was 300 and the directed which i didnt think would even be putting out true rms wattage would really fry the sub like this @400rms cause i had a couple cvr's that i was overpowering 100 watts a piece and i never had any trouble withem. is the amp any good? A802 directed? and what would you folks recommend for this amp. a pro shop sold this combo i woulda thought they knew what they were doin matchin sub to amp

pro-rabbit
07-01-2011, 10:35 PM
You missed the point.

Your amp and headunit settings are more then likely the cause of the issues you are currently having.

Gh0zt36
07-01-2011, 10:37 PM
question...... is wattage constant on an amp or does it variate with amp level?

cf2004
07-01-2011, 10:37 PM
user error

Gh0zt36
07-01-2011, 10:38 PM
yea maybe the amp is maxed out but head unit settings are fine sub level is almost flat , bass level on 5 band eq is -6 and -4 respectively and bass boost is on 1 step out of two i should probly turn the amp down a bit?

NoLoud4U
07-01-2011, 10:41 PM
Its not just about turning the amp down! its about setting it correctly. First thing turn any bass boost off.

Gh0zt36
07-01-2011, 10:48 PM
Its not just about turning the amp down! its about setting it correctly. First thing turn any bass boost off.

really? bass boost is even a bad idea? i turn the level down to bout 60-70% left the bass boost frequency level is in the middle maybe a little less and i turned up the sub level on the headunit and kept the bass boost on 1 on the head unit ...

NoLoud4U
07-01-2011, 10:54 PM
set the gain with a DDM, turn bass boost off and set HU bass to 0

---------- Post added at 09:54 PM ---------- Previous post was at 09:53 PM ----------

Ya bro, user error on this one

Gh0zt36
07-01-2011, 10:59 PM
forgive my ignorance but whats a ddm?

NoLoud4U
07-01-2011, 11:02 PM
Digital multi meter $20 at radio shack

Buck
07-01-2011, 11:02 PM
question...... is wattage constant on an amp or does it variate with amp level?

Wattage is never ever constant in music. When you take into account box rise and the inconsistent bass notes, ya.

Gh0zt36
07-01-2011, 11:03 PM
ok i got a multi meter but how would i use that to set the amp?

NoLoud4U
07-01-2011, 11:06 PM
JL Audio - Car Audio Systems (http://mobile.jlaudio.com/support_pages.php?page_id=143)

Google and youtube are your freinds

Gh0zt36
07-01-2011, 11:07 PM
fair enough thanks for the tips

Kangaroux
07-01-2011, 11:09 PM
ok i got a multi meter but how would i use that to set the amp?

Take your final impedance (since it's a w0 it's most likely a SVC 4 ohm) and multiply it by how much power you wanna push, then take the square root of that. So, for example, 200w * 4 = 800. Square root of 800 is 28.28. That's going to be the AC voltage you will aim for on the amp's output. Before setting your gain, turn down any bass boosts on your headunit and your amp all the way to 0. Next, set your volume to your maximum listening level. Don't turn the headunit all the way up as this usually causes clipping. I.e. if the headunit's max is 35 set it to 30 or 28. Turn your gain all the way down, and play a 50 or 60Hz test tone at -3dB (you can download them...don't remember where lol). Switch your dmm to AC voltage, put the test leads on the speaker outputs on the amp, and turn up the gain slowly until the AC voltage on your dmm matches 28v.

NoLoud4U
07-01-2011, 11:10 PM
Your still not going to like it after you learn to keep it alive.. You wont get any better out of that amp though

got-one-eight
09-01-2011, 06:03 PM
I heard a pair of 10" W0's in a ported box with 500W and It didn't sound bad at all. It's easy to make a sub sound like azz if its in the wrong enclosure.. to much bass boost, or imporperly set gains.

benchambers80
09-02-2011, 01:27 PM
LOL, JL is overpriced and mediocre

RAM_Designs
09-02-2011, 01:35 PM
I thought the RMS of the old W0 was 125?

NoLoud4U
09-02-2011, 01:39 PM
I thought the RMS of the old W0 was 125?

JL has that RMS chart they use. You know the Green to Red zones

NoLoud4U
09-02-2011, 01:40 PM
The W0 is just the old W3 with different cosmetics

Sleeklsc
09-02-2011, 01:55 PM
Back in h.s I had 2 12" w0's is a spec sealed box on a fosgate 800.2 and it was a killer(ikr) in my 97 cavalier. Only problem I ever had w/ them is a couple of the leads would snap once and a while. Kept fixing them though..

Why So Cereal?
09-02-2011, 06:11 PM
the w0's are decent. dont expect it to get ridiculously loud or anything though.
But really JL, as a whole, isnt meant to just get stupid loud. They will definitely give you a nice sound if setup correctly though.

r0llinlacs
03-18-2012, 02:45 AM
The shop I work at matched a 1000wrms amp to an 250wrms 8" sub. It's all about upselling.

BlackHawk99
04-03-2012, 05:02 AM
I heard (1) 10" W0V2 4 ohm in a slot loaded enclosure being powered by a Kenwood 460 watts RMS x 1 bridged output at 4 ohms. It wasn't good. It had that one note bass boom. We took the same enclosure and put it in my car with a Rockford pushing 300 watts bridged to it and it sounded really good. Can't figure that out. The birth sheet claims my amp is doing 390 watts bridged. The W0 may not be high end, but it wasn't anything to sneeze at... at least not in my car.

Imtjnotu
04-03-2012, 05:23 AM
I heard (1) 10" W0V2 4 ohm in a slot loaded enclosure being powered by a Kenwood 460 watts RMS x 1 bridged output at 4 ohms. It wasn't good. It had that one note bass boom. We took the same enclosure and put it in my car with a Rockford pushing 300 watts bridged to it and it sounded really good. Can't figure that out. The birth sheet claims my amp is doing 390 watts bridged. The W0 may not be high end, but it wasn't anything to sneeze at... at least not in my car.

......... Jl boner is mad hard huh

ancorp
04-19-2012, 01:10 PM
Big difference between JL 10W0 and 10W0V2 or V3.

The original W0 is rated at 125w RMS. They should have no problem taking more (200-250) in a proper box so long as you don't let them bottom out.

Worlddre
04-19-2012, 01:21 PM
one of our shop demo cars is a 93 Accord with a pair of 12W0s in a 4th order bandpass porting through where the rear speakers would be. Subs are splitting 300w and it hammers

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06-12-2012, 06:25 AM
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06-12-2012, 06:42 AM
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Spamming old threads much?

Bettr n' Revrse
06-12-2012, 07:01 AM
Spamming old threads much?

No ****!

rsnookie69
12-10-2012, 11:36 PM
How to Set Your Amplifier Gain to RMS Power Using Ohm's Law - YouTube (http://youtu.be/suX13VixU5k) watch this video to set amp gains

UnderFire
12-10-2012, 11:39 PM
How to Set Your Amplifier Gain to RMS Power Using Ohm's Law - YouTube (http://youtu.be/suX13VixU5k) watch this video to set amp gains

Back from the dead yet again...

Timmy13091
12-10-2012, 11:54 PM
How to Set Your Amplifier Gain to RMS Power Using Ohm's Law - YouTube (http://youtu.be/suX13VixU5k) watch this video to set amp gains

Really bro? Making the chi look bad

xShoWTeKx
12-10-2012, 11:57 PM
Poast

nvturbo
01-02-2013, 01:25 PM
The W0 series is better than the WX's. They are decent subs if installed and wired correctly.

DoesDad
01-02-2013, 02:22 PM
Let this ******* thread die already!!!

1991rangerSTX
01-02-2013, 02:47 PM
never!!!