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need some sound advice to pound


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tigger76 
Member - Posts: 21
Member spacespace
Joined: January 30, 2009
Posted: February 13, 2009 at 2:35 PM / IP Logged  
You guys are good at getting more questions from me. I thought that 4 12's had more cone volume than 3 15's? (48 vs 45)? Some other questions are if I run the 3 15's and wire them down to a 1.34 ohm load, does it effect the amp since strapping it needs to be at a 2 ohm load? The 15's are spendy, $477.00 vs the 12's at $322. I dont have a stereo shop that carries the mtx line now, so I will have to buy them on ebay or online somewhere. I have a limited budget for this. I estimate about $2000. total plus what ever I am able to sell the 12's I have for.
soundnsecurity 
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Joined: November 10, 2008
Location: Louisiana, United States
Posted: February 13, 2009 at 3:03 PM / IP Logged  
how about 2 18's? i just like big woofersneed some sound advice to pound - Page 3 -- posted image. 2 18's with dual 4 ohm coils will put you right at 1 ohm total and you can give each a lot of airspace. and put like a 1500W amp on each or a single 3000W amp for both. and should still give you all of the lovely bass you desire.
tigger76 
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Member spacespace
Joined: January 30, 2009
Posted: February 13, 2009 at 4:32 PM / IP Logged  
Hi guys. I love big speakers but I have to have alot of them and since having a baby is in the mix I am on a very limited budget. For me, 2 18's for me would just leave me wanting for more. Is there a sound (bass) difference in that goes with the size difference between speakers? Like 10 vs 12 vs 15?I think I have my heart set on either 12's or 15's. I really want whatever will let me win a few db drags in my area, (not all, but a few). I know that this is going to be a personal preferance question, but is there a sub that I would like better for what I want in my price range?  Thank you guys
aznboi3644 
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Gold spaceThis member consistently provides reliable informationspace
Joined: May 01, 2006
Location: United States
Posted: February 13, 2009 at 5:05 PM / IP Logged  
tigger76 wrote:
You guys are good at getting more questions from me. I thought that 4 12's had more cone volume than 3 15's? (48 vs 45)? Some other questions are if I run the 3 15's and wire them down to a 1.34 ohm load, does it effect the amp since strapping it needs to be at a 2 ohm load? The 15's are spendy, $477.00 vs the 12's at $322. I dont have a stereo shop that carries the mtx line now, so I will have to buy them on ebay or online somewhere. I have a limited budget for this. I estimate about $2000. total plus what ever I am able to sell the 12's I have for.
You are not talking about cone area here...you are talking about cone diameter.
Four 12's do not come out to 48 SQUARE INCHES...area is TWO DIMENSIONAL...area not length.
Also I can design you a new enclosure that will pound...there is no need to spend money on overpriced MTX equipment...MTX sucks anyways.
Keep your subs you have now and build a new enclosure...we can make it rain.
Custom Enclosure Design
j.reed 
Copper - Posts: 716
Copper spacespace
Joined: January 05, 2009
Location: Arkansas, United States
Posted: February 14, 2009 at 12:10 AM / IP Logged  

aznboi3644 wrote:
tigger76 wrote:
You guys are good at getting more questions from me. I thought that 4 12's had more cone volume than 3 15's? (48 vs 45)? Some other questions are if I run the 3 15's and wire them down to a 1.34 ohm load, does it effect the amp since strapping it needs to be at a 2 ohm load? The 15's are spendy, $477.00 vs the 12's at $322. I dont have a stereo shop that carries the mtx line now, so I will have to buy them on ebay or online somewhere. I have a limited budget for this. I estimate about $2000. total plus what ever I am able to sell the 12's I have for.
You are not talking about cone area here...you are talking about cone diameter.
Four 12's do not come out to 48 SQUARE INCHES...area is TWO DIMENSIONAL...area not length.
Also I can design you a new enclosure that will pound...there is no need to spend money on overpriced MTX equipment...MTX sucks anyways.
Keep your subs you have now and build a new enclosure...we can make it rain.

maybe you should read the rest of the thread first. Then you would know he is already running MTX subs. 7500 series and is wanting more output. Yes box alone will get him more output over the 2 prefab boxes he is using now. But if he is serious about getting much louder it is time to get the true power out of his amps as well as using subs that can handle the full output power of his amps along with a perfect box.

need some sound advice to pound - Page 3 -- posted image.
aznboi3644 
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Gold spaceThis member consistently provides reliable informationspace
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Location: United States
Posted: February 14, 2009 at 1:33 AM / IP Logged  
I know he has two 7500's....I never said I didn't know that.
I'm saying a new enclosure will sound better and be louder...if you don't believe this than you don't really know much about enclosure design.
Custom Enclosure Design
tigger76 
Member - Posts: 21
Member spacespace
Joined: January 30, 2009
Posted: February 14, 2009 at 3:43 AM / IP Logged  

      Hi guys, this is all so fustrating for me right now.  Aznboi3644, I have 4 of the 7500's. I will need to build a new box soon cause the sound I have now is really embararissing(that is spelled wrong). I can honestly say that if this system was in my caprice, I would have a headache every night. I know that they are 2 very different cars. It is fustrating because I have never had a factory stereo in any car of mine for longer than 3 days and I thoughtneed some sound advice to pound - Page 3 -- posted image. I knew what I was doing and everything I seemed to know was wrong, and I don't mean alittle wrong, I talking about 180 degrees wrong. I am 32 years old and I thought I had this stuff down. Ya know, I thought you take out the old stereo, put in the new one, run your wires down the side, put the subs in the box that you can have conviently there and hook up the amp and presto, you had sound. I knew that there were svc's and dvc's, what they did?, who knows? This makes me want to pull every stereo I have in my cars and redo everyone. need some sound advice to pound - Page 3 -- posted image.

      I am really messed up mentally right now. The reason I have been into spl and loud bass cars was I went to a db drag when I was a senior i high school. I had a 70 vw rabbbit that hauled ars. It had 2 Fosgate 12's and a fosgate amp. I thought I was king poop. I entered it thinking this will be fun. It was not. I sucked. a bmw with 3 10's blew me so far out of the water I felt like I ended up in oklahoma city.!. Now I am sure that the kid had more money than his mom or dad knew what to do with. After that ars wooping, I walked around the show and saw a Rockford Fosgate  suburban sitting there and got to sit inside of it. It was walled off, and had 8 18's specially made for this suburban (I only say this cause I have never seen a 18 by rf, I pretty sure I am wrong). Let me tell you that I was like a kid at christmas after that.

      So like I said, some umpteen years later here I am finding these forums and man, I didn't know doodie. Like I said, I dont want to be the baddest person on the block, I just want to be the one with the baddest system.need some sound advice to pound - Page 3 -- posted image.  Aznboi3644, could you please send me a enclosure design?

      I feel stupid for getting the MTX TA81001 and not being able to get all the power from them that I can. Does that makes sense?

      Man, it is 1:44 in the morning. See this is how bent out of shape I am in. I get maybe 6 hours of sleep since I have a new baby and I spend 3 of it on these forums reading as much as I can. Its a love-hate relationship, I know. 

      Thank you to all you guys for reading my ramblings. Thank you for all your guys help also.

j.reed 
Copper - Posts: 716
Copper spacespace
Joined: January 05, 2009
Location: Arkansas, United States
Posted: February 14, 2009 at 11:44 AM / IP Logged  

aznboi3644 wrote:
I know he has two 7500's....I never said I didn't know that.
I'm saying a new enclosure will sound better and be louder...if you don't believe this than you don't really know much about enclosure design.

Again if you read the thread you would know i have already said that myself.

need some sound advice to pound - Page 3 -- posted image.
tigger76 
Member - Posts: 21
Member spacespace
Joined: January 30, 2009
Posted: February 15, 2009 at 1:49 AM / IP Logged  
Well guys I think that I have decided on doing 4 of the MTX 15" 9500's. I am pretty sure that I will also get them in 4 ohm that way I can decide if I want to wire them down to 2 ohms with 2 strapped amps or just do 2 of them wired down to a 1 ohm load per amp. I will be getting new amps also but have yet to figure out which one or ones? Ran the idea through the wife, she said if I do then I will have to sleep on the couch for a week. Oh well, the price I have to pay.need some sound advice to pound - Page 3 -- posted image.
          Does anyone have any suggestings on amps, preferablly mtx? If anyone has a bettere idea please let me know. Thank you guys for all your help. Phillip
cobrakilla27 
Member - Posts: 19
Member spacespace
Joined: October 21, 2008
Location: Texas, United States
Posted: February 15, 2009 at 1:01 PM / IP Logged  
dude you know big of a box you will need for 4 15 9500s. youre gonna need a 10 cubic foot box with atleast 5000 to 6000 watts to power those 4 sub.  If you are going for loud and cheap you are looking at this the wrong way.  I have 1 12 inch digital design 9512 that i take to competitions.  I have 2 mtx 8101 amps hooked up to it pushin around 3300 watts rms to it and im hitting around 150.4db in db drags easily.  The 2 things you need in systems are power and air space.  I would just go with one power sub from digital design and get a custom box built for it and put a lot of power to it through mtx amps of stetsom amps if you can find any.  If you do everything right and install it yourself you can get a loud ass comp set up for under 2000 bucks
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