This Setup Should Slam?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=34842
Printed Date: May 11, 2024 at 3:31 PM
Topic: This Setup Should Slam?
Posted By: greenbroncoguy
Subject: This Setup Should Slam?
Date Posted: June 30, 2004 at 10:01 AM
What does everyone think of this setup: 2 Kicker S15L7 subs (2 ohm dual voice coils), each sub powered by a Kicker KX1200.1 class D amp. The subs will be going into a large ported box taking up most of the room in the back of my bronco(haven't decided on exact size yet)., and will be wired for each sub to present a 1 ohm load to each amp. These amps may seem small since the subs are rated at 1000wRMS and the amps are 1200wMAX @ 1ohm, but I am going to get 2 more of the same amps because they can be "strapped" together to make one 2400xMAX amp for each sub. Everyone just let me know what ya'll think. I's so excited about how loud this should be that I may have made a mistake, you have to understand, I have no subs right now and I NEED BASS!!!
Replies:
Posted By: kfr01
Date Posted: June 30, 2004 at 10:19 AM
No, I don't think you'll quite be able to lose your hearing with that setup. Add 2 more subs and 3 more amps and you'll be deaf in less time. /semi-sarcasm I personally would hold off on buying the second amp until you hear how loud it is going to be. In all seriousness, unless you're planning to spl compete, another amp might be a waste of money. One of those amps will probably push the setup louder than you can listen to for any length of time - especially in a bronco. With no trunk to get through you can get very loud with 2 woofers in a ported system with not much power at all. ------------- New Project: 2003 Pathfinder
Posted By: greenbroncoguy
Date Posted: June 30, 2004 at 10:48 AM
yeah, I was going to hold off on buying the second amp anyways because they are like $500 apiece and since I would need 2 more that would be another $1000 that would be going out of my wallet. It should be loud enough the way it is with only 1amp/ speaker.
Posted By: thapimpfromchi
Date Posted: June 30, 2004 at 11:23 AM
Hey man, if you are going to be putting them into a very large ported box, you dont need to give them as much power. The bigger the box, the less power you have to feed them to perform. The smaller the box, the more you can feed them.
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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: fintheman
Date Posted: June 30, 2004 at 12:31 PM
Yea, seriously, one amp would be fine Since you have the space in the back to build a nice ported box at the right size (I'd say 4.5-5.0 Cubes for each) tune it to 30hz I would bet money that 300 watts to each sub would be pretty damn loud, 600, for sure. By the way, upgrade the wiring from your alternator to your battery, probably would help. You might be able to barely get by with 2 amps due to the amps you'd be getting. -fin ------------- Serving the country, one coffee at a time.
USAF!
Posted By: stevdart
Date Posted: June 30, 2004 at 1:44 PM
...and you'll be wiring them together for a 2 ohm load on the amp, which is better than the 1 ohm load you were thinking about.
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: forbidden
Date Posted: June 30, 2004 at 1:56 PM
I would take the dual 4 ohm version of the same sub and then choose one big amp to drive them. You will spend way less cake this way, use up less real estate as compared to mounting 4 amps and use waaaaaaaay less power consumption and the associated wiring.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: greenbroncoguy
Date Posted: June 30, 2004 at 2:13 PM
Well, it seemd that I read the specs wrong and the amps that I'm usig are 1200wRMS X 1 @ 1 ohm. So, I will only be using one amp per speaker now and I don't have to worry about the "strapping" thing. There will be more than enough power to go around. I already have a 200 amp alternator w/2ga. wire to the battery, and I've got the biggest Optima Yellow top they make. I am also going to get another Yellow Top, but I was wondering if I would be needing a capacitor (or 2) since I will be playing my system loud for long durations, b/c when I had 2 Orion 12"s powered by a DHD 1000w amp, my headlights dimmed when the bass hit, even with the battery and the big alternator.
Posted By: greenbroncoguy
Date Posted: August 16, 2004 at 6:55 PM
OK guys, I have a new plan. Now that I got the monet to buy the stuff I wanted (above), I have discovered new components for my system which are: (2) Orion H2 15.2 subs(handle 2500w max, 2000w RMS) and a class D Orion 2500D amp(2500w x 1 @ 1ohm,1700w x1 @ 2ohms, 1200w x 1 @ 4 ohms). Subs will be in a ported enclosure (3.0 cubic feet per sub, 40 square inches of port area, tuned to 30 HZ) and wired in paralell to the amp to present a 1 ohm load(amp is easily 1 ohm stable). This setup will be used for pure competition, so I don't care about sound quality at all. I might even get another 2500D amp so I won't have to run the other one at 1ohm pushing both speakers. Remember, I have plenty of alternator and battery power so that isn't a problem either. So, what does everyone think? I need to know because if it sounds good, I am going to go ahead and get all of this stuff. Please let me know, I need to get pounding. Thanks. -Matt
Posted By: d_arnold
Date Posted: August 16, 2004 at 7:51 PM
No matter what you get remember frequency is the key for competition. You need to do all the math or have someone do it for you. The best equipment will sound like crap if the frequencies are off. You need the quarter wave length to hit the microphone by emitting the frequencies at which your system and vehicle preforms best. You will need to know at least the distance from the speaker to the windshield. and enter that number on a program to find where to tune your enclosure based on the woofer specs. Remember Power is not everthing. Most of your competitive standing come from the install. THAT IS FACT -------------
Posted By: greenbroncoguy
Date Posted: August 16, 2004 at 8:04 PM
thanks, I am going to have someone doo all of that, but I would love to learn how to do it myself.
Posted By: promodeepcycle
Date Posted: August 17, 2004 at 3:23 PM
if your useing it for comp. only... do not tune that box to 30hz... that would be stupid . tune it to 55 hz im thinking you have a lot to learn before you jump into this comp. stuff.. first of all you have 2 batt and only 2 15's this puts you with civic's with the same setup .........ie alot less cabin i just did 4 12's in 10 cube ported.. 1250 watts rms total sounds fine... except now im doin 4 re xxx 18's 10000 rms same vehicle. as far as an everyday day driver .. "something that you ...WANT to listen to" do 2 15's 2500 watts slot ported 10 cube tuned to 32 hz and call it a day..
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dont be a pet monkey ..use your dmm
Posted By: promodeepcycle
Date Posted: August 17, 2004 at 3:36 PM
here try these on for size 280 per sub and these are entry level re subs check out the x-max and bl.. and dont worry about power they'll 2500 peak . i usally run 1250 per all day long.. its all about the box if you want you can call for more info.. 559-449-0123 Driver Properties Name: SE15 Type: Standard one-way driver Company: Resonant Engineering No. of Drivers = 2 Mounting = Standard Wiring = Parallel Dual voice coils = parallel Fs = 24 Hz Qms = 5.89 Vas = 7.028 cu.ft Cms = 213.6 µm/N Mms = 205.9 g Rms = 11.62 lb/s Xmax = 18 mm Xmech = 27 mm P-Dia = 12.64 in Sd = 0.081 sq.m P-Vd = 0.0515 cu.ft Qes = 0.52 Re = 1.4 ohms Z = 2 ohms BL = 9.05 Tm Pe = 600 watts Qts = 0.48 no = 0.51 % 1-W SPL = 89.1 dB 2.83-V SPL = 96.79 dB ----------------------------------------- Box Properties Name: Type: Vented Box Shape: Prism, square Vb = 10 cu.ft Fb = 25 Hz F3 = 27.15 Hz Fill = none No. of Vents = 1 Vent shape = rectangle Vent ends = one flush Hv = 49 in Wv = 3 in Lv = 61.75 in
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dont be a pet monkey ..use your dmm
Posted By: greenbroncoguy
Date Posted: August 17, 2004 at 4:02 PM
ok, first of all, of coarse I have alot to learn about competition setups, that is why I said "I don't know how to do all of this, but I would like to learn". to me, that sounds like I know that I don't know what im doing. second, staying with 15" Orion H2's, how many would you recommend, how much wattage RMS for each, and what type of box and what size. I thought this was the purpose of a forum of this type, to ask questions and learn something... -Matt
Posted By: promodeepcycle
Date Posted: August 17, 2004 at 4:21 PM
o yeah im not trying to be a "dick" ...sorry... its just u said you wanted to build it for comp.. but tuned at 30 hz... ... its a well known fact. that in-car response at 45-60 hz is gonna be "louder" .............as far as the orion h2's ill have to go to their site to get the parameters .........the rms power...? what ever they say they handle.. is what you give them.. the box.. slot port.. and as big as you can make it.. if you have an "oj" year bronco 93-94-95 then your box will be 49x22x28 ill get those specs and repost
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dont be a pet monkey ..use your dmm
Posted By: greenbroncoguy
Date Posted: August 17, 2004 at 4:36 PM
the advertised RMS power handling is 2000w, max is 2500W also, I have an older (1979) bronco, but the inside is pretty close to being the same as the newer ones I think. The reason I asked about how much power, is because someone said that if I was to put them in a large ported box, then I should not give them as much power as I would if I were to put them in a sealed box.
Posted By: promodeepcycle
Date Posted: August 17, 2004 at 4:41 PM
thats why we use programs to tune the enclosure.. to make sure the sub will not over excurt . also to check for excessive port velosity that sub looks pretty good how much are they? or should i say how much are you getting them for? .........just get 2 of those subs dual 4ohm and 1 of those amps.. your box will be 10 cube below the back window and slot ported ..... tuned to 29 hz if you like low bass if your gonna listen to rock all day long go with a higher tune..38hz
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dont be a pet monkey ..use your dmm
Posted By: promodeepcycle
Date Posted: August 17, 2004 at 4:46 PM
ok so about 250 per sub not bad.... my # is 559-449-0123 if you want a custom box desinged.,........superior sound..fresno ,ca ray<<<<<<<<
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dont be a pet monkey ..use your dmm
Posted By: greenbroncoguy
Date Posted: August 17, 2004 at 4:50 PM
retail, the subs are about $450ea, but I got quoted $575 for both 15's, and the amp retals for around $1500, but I got mine for $600. Also, if I got the dual 4-ohm ones, that means I would be wiring my amp to 1 ohm(amp is 2500w Max x 1 @ 1 ohm) so, each speaker would only be getting about 1250w max, would that be enough? I just want to get this right the first time.
Posted By: greenbroncoguy
Date Posted: August 17, 2004 at 4:51 PM
where did you find them that cheap for? By the way, I appreciate the help alot!
Posted By: greenbroncoguy
Date Posted: August 17, 2004 at 4:51 PM
where did you find them that cheap for? By the way, I appreciate the help alot!
Posted By: promodeepcycle
Date Posted: August 17, 2004 at 8:19 PM
you can buy stuff really cheap if you dont want a warranty .and as far as 1250 per.... sure not a perfect match but like i said before you are gonna put it a 10 cube box ,bigger box , dont quite need as much power... have you tried contacting a dealer.. an authorized dealer? and not some cheap ass hole in the wall ......if your gonna drop 4-5 grand on a system like you are . then go to someone who is gonna take care of you.
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dont be a pet monkey ..use your dmm
Posted By: greenbroncoguy
Date Posted: August 17, 2004 at 8:25 PM
yeah, I am going through an authorized Orion dealer, so I think I am pretty safe, and they have really gone out of their way to help me. I guess I'll just get 1 amp then and 2 subs and see how that sounds. I can always take my backseat out and get 4 more subs and 2 more amps . : ) (not a joke) -Matt
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