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View Full Version : Beginning my Mojo Build- First attempt ever



3kracing
04-30-2008, 07:43 PM
Ok well last night mobeious came up with the box design
http://i26.tinypic.com/212isys.jpg
It's gonna hold my 2- 15" Memphis Mojo M3 subs. As far as the amp is going I'm gonna be running an Autotek Mean Machine 4000. Also, electric I'm gonna do the Big 3 (upgrading the wire from the alternator to the battery, the batteries ground wire, and the wire from the engine to the alternator all to 0/1 awg gauge). Also, I'm gonna be running 2 Odyssey PC2250 batteries with probably 2 Stinger SR200 amp relays. Of course, everything will be wired in 0/1 awg wiring and the size of the box is roughly ~ 8.7 cubic feet with a port size of (hopefully if everything goes right) 4.5 width by 16 height. I may carpet it I'm not sure, if I don't I'm thinking maybe fiberglass the outside and paint it to give it a shiny look. I plan on building the box Friday (just purchased wood and a jigsaw) So if all goes according to my plan I should have it completed by June.

Items still needed-
About $500 worth of sound deadening material (second skin, I'm gonna go all out)
0/1 gauge wiring
Carpet/Fiberglass material
4 Channel amp
6.5" component speakers with crossovers
A bigger trunk LOL

btdickey99
04-30-2008, 07:45 PM
glad to see someone going with MOJO's....great sub and should be loud....

there will be some bracing in that box wont there?

3kracing
04-30-2008, 07:50 PM
well I'm gonna brace the middle between the subs. Where else should I brace?
Thanks, I'm hoping to be up in the 150's. Oh by the way it's going into a 2007 Hyundai Sonata

mobeious
04-30-2008, 08:00 PM
ehh i dont know about up in the 150's but maybe touch a 150

and bracing ... in the middle of the subsn and top to bottom

ContourSPL
04-30-2008, 08:48 PM
I predict a 147.4

Anywho, are the subs facing forward?

bonesninja
04-30-2008, 08:50 PM
do you have other tools or just a jigsaw...that would take forever.

btdickey99
04-30-2008, 08:51 PM
I predict a 147.4

Anywho, are the subs facing forward?

sweet guess:rolleyes:

GL with the subs and hitting your goal....I see 150 as an obtainable goal, but 150 is always tough in a car.....

once again where will the box be facing?

bigbangtheory
04-30-2008, 08:53 PM
Yeah, don't see that doing 150, but mid to upper 140's. Buddy has 2 15 Mojo's off the 4k Memphis amp and hits right at 150 off the tl.................in an expedition, lol!

MoJo
04-30-2008, 09:03 PM
GOOOO MOJO, i know for fact youll at least hit 150, im at 143 all i have is a m1, and i drive a 240sx LOL, yea you will be loud! cant wit til i get my mojo soon. ps if you have the money go with 2 mojo amps (one to each sub) seen that hit 151db in person.

3kracing
04-30-2008, 09:04 PM
Anywho, are the subs facing forward?

Yes they are


do you have other tools or just a jigsaw...that would take forever.
Yeah but most of the wood is already cut (thanks to home depot)


but 150 is always tough in a car.....
Why is it harder in a car?

bigbangtheory
04-30-2008, 09:11 PM
Yes they are


Yeah but most of the wood is already cut (thanks to home depot)


Why is it harder in a car?

Usually in most cases it is harder in a trunked car. If you have a hatch, then you would probably be over 150, but trunks hold a lot of bass in, even if your seats go down.

3kracing
04-30-2008, 09:13 PM
Oh ok, yeah my seats go down so i figured with forward firing and all the seats laying down it'd be loud

btdickey99
04-30-2008, 09:17 PM
will the box completely sealed off from the trunk/?

btdickey99
04-30-2008, 09:17 PM
GOOOO MOJO, i know for fact youll at least hit 150, im at 143 all i have is a m1, and i drive a 240sx LOL, yea you will be loud! cant wit til i get my mojo soon. ps if you have the money go with 2 mojo amps (one to each sub) seen that hit 151db in person.

one your car is a hatchback, and 2 143-150 is like night and day......

RAM_Designs
04-30-2008, 09:17 PM
What's it tuned to? It'll be hard getting to 150 without an spl oriented box. If this box it tuned below 35hz for a dialy setup, don't count on a 150, although it is possible.

3kracing
04-30-2008, 09:17 PM
will the box completely sealed off from the trunk/?
what do you mean?

btdickey99
04-30-2008, 09:19 PM
are you just facing this box towards the cabin, or are you actually going to seal it of from the trunk, as if no air can reach the trunk

3kracing
04-30-2008, 09:20 PM
oh im gonna lay the seats down and have it forward firing. what would be louder, the port being a little bit smaller in the front or the port being somewhere else and bigger

btdickey99
04-30-2008, 09:23 PM
yes I understand this but will it be sealed from the trunk, so that no air gets back there.....like walling off your trunk

MoJo
04-30-2008, 09:24 PM
One my car has a trunk, two im at 143 on the tl with one m1, so if he has 2 mojos he should hit 150 (hopefully) THAT WAS MY PIONT...... lolz

3kracing
04-30-2008, 09:28 PM
yes I understand this but will it be sealed from the trunk, so that no air gets back there.....like walling off your trunk

if I understand right, no I'm not gonna have it "walled off" would walling it off make it louder?


One my car has a trunk, two im at 143 on the tl with one m1, so if he has 2 mojos he should hit 150 (hopefully) THAT WAS MY PIONT...... lolz

thats what I'm hoping, plus with my electrical backup hopefully it will help

tapout
04-30-2008, 09:36 PM
WIth all due respect, srsly, n00bs just cant drop subs in a trunk and hit a 150.

btdickey99
04-30-2008, 09:37 PM
if you are going to face your subs forward it will need to be sealed off from the trunk....not that this is a fact just that about 80% of cars are louder with the subs/port facing the trunk

however your car could be different as all vehicles are

btdickey99
04-30-2008, 09:37 PM
WIth all due respect, srsly, n00bs just cant drop subs in a trunk and hit a 150.

there you are:)

btdickey99
04-30-2008, 09:38 PM
One my car has a trunk, two im at 143 on the tl with one m1, so if he has 2 mojos he should hit 150 (hopefully) THAT WAS MY PIONT...... lolz

how much power were you throwing to this m1?

and box specs?

3kracing
04-30-2008, 09:41 PM
Alright I guess we'll see

tapout
04-30-2008, 09:43 PM
Alright I guess we'll see

Dont get me wrong, its good to have goals.

After that initial 147, try some new things and work hard and your goals can be accomplished.

memphisman
04-30-2008, 09:44 PM
One my car has a trunk, two im at 143 on the tl with one m1, so if he has 2 mojos he should hit 150 (hopefully) THAT WAS MY PIONT...... lolz

Dude ive got a Memphis M1 with 600 watts goin 2 it and it dont heat up or nothin but when i ordered another 1 to go with it the guy told me 150 would b outta the question maybe low 140s

btdickey99
04-30-2008, 09:53 PM
Dude ive got a Memphis M1 with 600 watts goin 2 it and it dont heat up or nothin but when i ordered another 1 to go with it the guy told me 150 would b outta the question maybe low 140s

yours I can see happening.... esp in the vehicle that you have, and with twice the cone area (assuming he has 1 15 m1)

dont get me wrong that Memphis canget loud, but I am just finding it hard for 1 M1 to be @143.......once again not saying you are a liar MOJO bc mobeous on here has made a PR pretty loud

btdickey99
04-30-2008, 09:55 PM
I just wish some ppl here would feel a 150 vehicle so they knew how it actually felt, and how much work it took to get there

then ppl on here would know how to appreciate 150

3kracing
04-30-2008, 10:03 PM
Dont get me wrong, its good to have goals.

After that initial 147, try some new things and work hard and your goals can be accomplished.

Try new things like what?

btdickey99
04-30-2008, 10:08 PM
Try new things like what?

box....amp.... different places to face subs

icpurplepplalot
04-30-2008, 10:10 PM
I just wish some ppl here would feel a 150 vehicle so they knew how it actually felt, and how much work it took to get there

then ppl on here would know how to appreciate 150

I always laugh when I see people get in a 150+ car, and don't realise how loud it is going to be, and then they freak out and plug there ears.

But yes, 150+ is difficult to get to, and is louder than most people imagine.

3kracing
04-30-2008, 10:11 PM
Oh ok. What is the loudest 15 out there anyways?

btdickey99
04-30-2008, 10:12 PM
I always laugh when I see people get in a 150+ car, and don't realise how loud it is going to be, and then they freak out and plug there ears.

But yes, 150+ is difficult to get to, and is louder than most people imagine.

it will really make someone appreciate getting there....or trying to

tapout
04-30-2008, 10:14 PM
Oh ok. What is the loudest 15 out there anyways?

Install dependant.

memphisman
04-30-2008, 10:15 PM
is it harder to get 150 in a truck?

3kracing
04-30-2008, 10:19 PM
would it be louder if I face the subs upwards?

btdickey99
04-30-2008, 10:25 PM
would it be louder if I face the subs upwards?

maybe....who knows....its rare that someone just takes 2 subs and pops a 150 on their 1st go......especially a n00b

now I think 2 MOJOs in the right box/install are very capable of 150.....just hard as ****

and like tapout said....its all install dependent

3kracing
04-30-2008, 10:36 PM
Hmm ok well I'll build this first, keep it for a little bit then try another box later on. MDF is so cheap anyways its like 20 bucks a sheet.

btdickey99
05-01-2008, 12:23 AM
Hmm ok well I'll build this first, keep it for a little bit then try another box later on. MDF is so cheap anyways its like 20 bucks a sheet.

if you arent planning on sealing off the trunk then I definately suggest facing subs/ports towards the trunk

jeremiah
05-01-2008, 05:45 PM
there's a guy that did a 152db on the TL with 2 15's and 8000Wrms in a 2door civic it was loud!!

miker
05-01-2008, 06:39 PM
Yeah.. I hardley doubt anything will go great the first build...

Just have to figure out what works.. Like Right now I'm happy with Aero's ported to the side..

Who woulda thunk it? Fit's awesomely in my trunk and is the loudest so far...

pioneerpimp
05-01-2008, 06:40 PM
still waiting for the e check to clear, after it does, the batteriesssssss goes out to you

3kracing
05-01-2008, 11:07 PM
woo I think I'm gonna put them in my spare tire well