2003 SL55 AMG Subwoofer specs? - Mercedes-Benz Forum
 
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post #1 of 9 (permalink) Old 11-03-2018, 11:37 PM Thread Starter
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2003 SL55 AMG Subwoofer specs?

Hi all does anyone know the specs on OE Bose subwoofer trying to wire up all 3 subs with 300 watt 1 channel amp and 2 aftermarket subs are dual voice coils and I think my Oem one is just single voice coil so what would be the best way to wire up all in series or parallel? And on aftermarket ones I have advantage to either go 8ohm or 2ohm but what’s the ohmage and and all that for oem one ?
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post #2 of 9 (permalink) Old 11-04-2018, 06:17 AM
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measure the stock woofer and find out what the ohm is, then I will answer the question
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post #3 of 9 (permalink) Old 11-04-2018, 07:33 AM Thread Starter
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measure the stock woofer and find out what the ohm is, then I will answer the question
Yes I figured that’ out after I posted that post 😂 ,but on the other hand wondering if would be ok to connect after market speakers with some oem speakers cuz I would like to keep dash middle speaker and rear bar speakers plus doors full aftermarket and subs aftermarket with original sub
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post #4 of 9 (permalink) Old 11-04-2018, 10:38 AM Thread Starter
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measure the stock woofer and find out what the ohm is, then I will answer the question
Ok so I measured stock woofer it’s at 2ohms which is good cuz I can do my 10 inch subs on the back either 8 or 2 ohms so I just bridge them at 2 ohms as well and now what would be best set up for my Rockford fosgate Pbr300/1 Channel amp ? Also seems like factory speakers are between 4 and 6 ohms still need to do more measurements but for now what’s the best set up for woofers ?
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post #5 of 9 (permalink) Old 11-05-2018, 09:43 AM
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since it is 2, you really need to go all in series, 2 and 2 and 2 = 6 ohms So you dont go too low resistance for the amp.
I would set everything for 2 ohm and wire them all in series and the amp will drive 6 ohms. Thats safest and least complicated.
If you measure a speaker it will usually read about 2 or 4 or 8 ohms. You figure the closest number
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post #6 of 9 (permalink) Old 11-05-2018, 09:46 AM Thread Starter
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[QUOTE=OKB;17599535]since it is 2, you really need to go all in series, 2 and 2 and 2 = 6 ohms So you dont go too low resistance for the amp.
I would set everything for 2 ohm and wire them all in series and the amp will drive 6 ohms. Thats safest and least complicated.
If you measure a speaker it will usually read about 2 or 4 or 8 ohms. You figure the closest number[/QUOTE
Hi thanks for reply but here is the thing specs on my extra 500/1 JL amp are 1,5 to 4 ohms I believe anything higher than that will tost amp itself right ?
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post #7 of 9 (permalink) Old 11-05-2018, 06:27 PM
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you said you have a 300 w 1 channel amp
it says it will only power 1 (speaker) at 4 to 5 ohm ?
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post #8 of 9 (permalink) Old 11-05-2018, 08:06 PM Thread Starter
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[QUOTE=OKB;17600051]you said you have a 300 w 1 channel amp
it says it will only power 1 (speaker) at 4 to 5 ohm ?[/QUOTE
Well here is the thing I came up with idea to use 3 amps so 2 sub amps and 1 300/2 for the speakers and the JL 500/1 has extra signal output and that’s what I’m using for extra 300/1 sub amp,so my configuration is 500/1 will support 2 10w6 JL subs with total impiedience at 4ohm ! They both are dual voice coils at 2 or 8 ohm ,so I was on the phone this morning with JL customer support and best set up is to keep each sub at 8ohm and connected in parallel that would give me total of 4ohm and that is final going to 500/1 amp and. The guy said it will keep the amp happy at this set up so that’s done now since JL500 amp has extra signal output I will run RCA from that amp to my 300/1 and that one will drive The OEM Subwoofer Which I already connected and Bro Wow it slams the shit out of it with just that one OEM sub so I can only imagine what it’s going to be with my 2 JL 10w6’s probably brain damage 😂 also the 3rd 300/2 speaker amp is connected its nice as well ,also I used crossovers and I manage to keep dash OEM center speaker and rear speaker bar!!! Try to attach pics and so far I got 2 small amps hocked up and still might change some things here and there
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post #9 of 9 (permalink) Old 11-05-2018, 08:25 PM Thread Starter
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Btw I did whole 9 did head unit speakers run new compete harness from radio to the back all with back up camera etc it’s has everything now lol 😂 also just took this pics and I’m not done yet so something will change for sure but I want to keep it as clean professional as possible and that was still mess but it will be awesome soon lol also did USB and HDMI as pictured
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