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fcm
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11793 posts [101%]
kelowna bc
5-25-2004
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (hondaon18's) | « » 9:43 AM 5/13/2008 |
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| Quote, originally posted by hondaon18’s » | what kind of box should i get or make.  |
A big one, even the smallest, [compact] sealed box is .88 cuft gross, so for 4 drivers you need 3.52 cuft, a sealed SQ box is 2 cuft max, so for 4 drivers that would be 8 cuft gross internal volume.
A compact vented cabinet needs 1.75 cuft, 7 cuft for 4 drivers, 3.25 cuft or 13 cuft with 4 drivers in a SQ vented box,  do you need a back seat?L7s sound best in a vented cabinet, [slot port], although I am a fan of sealed cabinets, I have never heard an L7 in a sealed box that sounded very good. Keep in mind, you must know, that the S12L7 is a power hungry 750W sub, with 4 of them you are looking at 3000W of RMS power. BTW, what kind of box, [volume] are the 3 in now and what amp(s) do you have driving them?  94
94LS
^^^ now in the process of being striped down and gutted for the rebuild.
Now cruising in my new winter car, 89 Chrysler Dynasty You get what you pay for. Nothing is impossible, the impossible takes longer and costs more money.
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B18C_EJ8
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6156 posts [100%]
Herkimer NY
1-25-2003
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (fcm) | « » 12:14 PM 5/13/2008 |
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| Quote, originally posted by fcm » |
BTW, what kind of box, [volume] are the 3 in now and what amp(s) do you have driving them? 94 |
I'm betting nowhere near adequate enclosures or amps.
=W=
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White Smoke
- i ♥ my honda -
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6484 posts [101%]
Maryland
5-8-2003
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (hondaon18's) | « » 4:25 PM 5/13/2008 |
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You sure you need this kind of power? What amps are you running/planning to run?
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hondaon18's
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261 posts [100%]
chicago il
2-20-2007
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (White Smoke) | « » 2:53 PM 5/20/2008 |
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for the three l7s right know im running a punch digital 1500 amp and they hit. i have to batteries. i use to have three punch hx2's with a punch bd800 and that hit too.
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fcm
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11793 posts [101%]
kelowna bc
5-25-2004
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (hondaon18's) | « » 3:08 PM 5/20/2008 |
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What is the exact model number, it should be P something? 94
94LS
^^^ now in the process of being striped down and gutted for the rebuild.
Now cruising in my new winter car, 89 Chrysler Dynasty You get what you pay for. Nothing is impossible, the impossible takes longer and costs more money.
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hondaon18's
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261 posts [100%]
chicago il
2-20-2007
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (fcm) | « » 9:07 AM 5/21/2008 |
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for the amp its a rockfordfosgate. i cant look at the model number because it bolted on . why does it matter what model number . also the only thing that i want to get working is my isolator so i can charge both of the batteries up. i cant figure it out. 
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fcm
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11793 posts [101%]
kelowna bc
5-25-2004
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (hondaon18's) | « » 8:44 PM 5/21/2008 |
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With a model number I can get the specs of the amp, although you can run subs with an underpowered amp it is not recommended, and if you are underpowered now, adding another sub will make you very underpowered and that leads to over-diving the amp into constant clipping and that will damage the speakers VCs. 94PS. Posted info on your isolator on your other tread.
94LS
^^^ now in the process of being striped down and gutted for the rebuild.
Now cruising in my new winter car, 89 Chrysler Dynasty You get what you pay for. Nothing is impossible, the impossible takes longer and costs more money.
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hondaon18's
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261 posts [100%]
chicago il
2-20-2007
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| « Re: i want to add a extra l7 in to my ek! any advice on how it can be done? (fcm) | « » 6:42 PM 5/25/2008 |
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oh i know that i will need another amp to run the fourth speaker. thats why i wanted to put my punch 800 to the single extra l7.
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doggworld1233
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255 posts [100%]
lake worht fl
11-13-2005
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i have put 4 l712s in a eg coupe. the way i did it was puting them in a forth order bandpass. with the speakers firing up towards the back deck. and the port through the back deck. most the box was fiberglass. used a powerbass xa3000.1 to power them
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Skip01
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1066 posts [100%]
Marrero Louisiana
9-20-2002
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It would prolly be louder with 2 12s in a properly built box and that amp
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hondaon18's
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261 posts [100%]
chicago il
2-20-2007
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do you have pictures of the eg with four l7s so i can get a idea
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