2 different sub boxes? Bad Idea? - Audio & Electronics Forum

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2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 6:21 PM
So im guess this is a terrible Idea, I just want to clarify.

I am putting 2 subs in my trunk, but have a feeling I will be happier with just 1 in the future. So im building seperate boxes for each one.

Would it sound awful to have 1 ported box and 1 sealed box running on 1 amp at the same time, because i know each one would and should be tunned differently. I imagine both boxes need to be identical.

I was just wondering if by chance this was ok to do, then I could decide between which sound i like better, and keep the box i prefer.

But If im right this isnt an option, especialy with both subs being run off the same amp.

Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 6:31 PM
It would sound bad. You're having two different tunes, some frequencies would actually make it quieter.




Your car may do 13 sec @ 103 mph, but my car does 146db @ 35 hz.
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 6:37 PM
bad idea.... but somtimes bad ideas work...




click sig for my car audio videos
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:11 PM
Anton Miller (PPC) wrote:bad idea.... but somtimes bad ideas work...


Probably 99.99% a bad idea. The boxes might sync up for like on frequency. And thats a gigantic maybe. Just build two identical boxes for the subs.



Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:22 PM
No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


On the other hand....you have other fingers.

You think god never farted?
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:33 PM
JLAudioCavalier wrote:No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


hey im in the testing mood. if you dont absolutely 100% know whether or not it will work then why not try it? if i ever have 2 of the exact same sub ill try it and see if i cant prove you wrong. hell i mean if firing my box sideways gains me almost 1 db on the meter why wouldnt this work! lol. but i did say its a bad idea to begin my post....




click sig for my car audio videos
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:34 PM
I take know over think since Im poor.



Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:42 PM
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


hey im in the testing mood. if you dont absolutely 100% know whether or not it will work then why not try it? if i ever have 2 of the exact same sub ill try it and see if i cant prove you wrong. hell i mean if firing my box sideways gains me almost 1 db on the meter why wouldnt this work! lol. but i did say its a bad idea to begin my post....


Ya see there are so many factors that change. That's why this doesn't count as one of those "it MIGHT work" ideas. No it WONT work. Each sub will be reacting completely different. It's a fact. Plain as day. Cut and dry. Just shut up.



On the other hand....you have other fingers.

You think god never farted?
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:46 PM
JLAudioCavalier wrote:
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


hey im in the testing mood. if you dont absolutely 100% know whether or not it will work then why not try it? if i ever have 2 of the exact same sub ill try it and see if i cant prove you wrong. hell i mean if firing my box sideways gains me almost 1 db on the meter why wouldnt this work! lol. but i did say its a bad idea to begin my post....


Ya see there are so many factors that change. That's why this doesn't count as one of those "it MIGHT work" ideas. No it WONT work. Each sub will be reacting completely different. It's a fact. Plain as day. Cut and dry. Just shut up.


provide me proof it wont work and i will shut up.




click sig for my car audio videos
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 2:49 AM
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


hey im in the testing mood. if you dont absolutely 100% know whether or not it will work then why not try it? if i ever have 2 of the exact same sub ill try it and see if i cant prove you wrong. hell i mean if firing my box sideways gains me almost 1 db on the meter why wouldnt this work! lol. but i did say its a bad idea to begin my post....


Ya see there are so many factors that change. That's why this doesn't count as one of those "it MIGHT work" ideas. No it WONT work. Each sub will be reacting completely different. It's a fact. Plain as day. Cut and dry. Just shut up.


provide me proof it wont work and i will shut up.


I think it should so the other way. You prove it will work. Since frankly everything Ive ever heard about mixing subs and enclosures has been bad.



Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 7:59 PM
TheSundownFire (GME Chat) wrote:
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


hey im in the testing mood. if you dont absolutely 100% know whether or not it will work then why not try it? if i ever have 2 of the exact same sub ill try it and see if i cant prove you wrong. hell i mean if firing my box sideways gains me almost 1 db on the meter why wouldnt this work! lol. but i did say its a bad idea to begin my post....


Ya see there are so many factors that change. That's why this doesn't count as one of those "it MIGHT work" ideas. No it WONT work. Each sub will be reacting completely different. It's a fact. Plain as day. Cut and dry. Just shut up.


provide me proof it wont work and i will shut up.


I think it should so the other way. You prove it will work. Since frankly everything Ive ever heard about mixing subs and enclosures has been bad.


im just the opposition, i did tell the OP that it was a bad idea. but who knows some bad ideas work great...




click sig for my car audio videos

Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 8:32 PM
No.... look at TS specs and how sub react. Nevermind I'm done. You are a flat out moron. That's the end.


On the other hand....you have other fingers.

You think god never farted?
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 8:38 PM
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:
Anton Miller (PPC) wrote:
JLAudioCavalier wrote:No Anton. If you think for a minute he SHOULD try this because it MIGHT be good, you are wrong. No don't put 2 subs(even if they match), in different types of sub boxes. If you build each box exactly like the other and keep the subs near each other, I don't see an issue. But a sealed box and a ported box? @!#$ no. Anton STFU now! I can't stand the idea of people doing bad things, wasting time, or wasting money because someone who THINKS he is in a position of knowledge gives advice....


hey im in the testing mood. if you dont absolutely 100% know whether or not it will work then why not try it? if i ever have 2 of the exact same sub ill try it and see if i cant prove you wrong. hell i mean if firing my box sideways gains me almost 1 db on the meter why wouldnt this work! lol. but i did say its a bad idea to begin my post....


Ya see there are so many factors that change. That's why this doesn't count as one of those "it MIGHT work" ideas. No it WONT work. Each sub will be reacting completely different. It's a fact. Plain as day. Cut and dry. Just shut up.


provide me proof it wont work and i will shut up.


IT'S @!#$ COMMON KNOWLEDGE



Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 9:51 PM
Hahaha, thanks guys. I will build 2 ported boxes then.

and just wondering then, if i want to try my system with a single sealed sub, Would it be possible to cut a piece of MDF and screw it into the port to seal it off.
Or will it not be air tight enough?
Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 10:16 PM
It will be close to good enough. If the port sticks out at all it might create a gap. Use lots of glue.



Re: 2 different sub boxes? Bad Idea?
Tuesday, April 27, 2010 10:24 PM
Not quite sure what you mean, For mine the port openning will be flush with the face of the box. So i dont think i will have the issue your talking about.
And I was hoping on not glueing in the piece of MDF seal to begin, because if i like the sound of the porteted better, I can just remove it. Im sure the glue woul make removing it very difficult. haha
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 3:48 AM
If you build a ported enclosure, more often than not it'll be too big for sealed applications. But Anton will chirp in and say it might work.




Your car may do 13 sec @ 103 mph, but my car does 146db @ 35 hz.
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 4:53 AM
how does something get louder? you double the output at a certain freqnecy (2 subs versus 1) and the sound increases. so now you have one ported sub that peaks at one freqncy and a sealed box that peaks at another frequency and your not doubling your output so you lose spl. now sound. you could adjust it with an eq possibly to sound decent. but with diffrent peak points and diffrent rolloff points its just not going to sound very good.


if you allready feel 1 sub will be enough build two sepearte boxes if you want the box building experience and try each one out to find the one you like best and then just sell the other. don't bother running 2 if you dont want 2 to begin with.


http://www.flickr.com/photos/sndsgood/ https://www.facebook.com/#!/Square1Photography
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 7:42 AM
sndsgood wrote:how does something get louder? you double the output at a certain freqnecy (2 subs versus 1) and the sound increases. so now you have one ported sub that peaks at one freqncy and a sealed box that peaks at another frequency and your not doubling your output so you lose spl. now sound. you could adjust it with an eq possibly to sound decent. but with diffrent peak points and diffrent rolloff points its just not going to sound very good.


if you allready feel 1 sub will be enough build two sepearte boxes if you want the box building experience and try each one out to find the one you like best and then just sell the other. don't bother running 2 if you dont want 2 to begin with.


You don't know anything. Anton is supreme chancellor.




Your car may do 13 sec @ 103 mph, but my car does 146db @ 35 hz.
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 10:11 AM
I have never had a system before. This will be my first build, so im just experimenting. I really dont know if i only want 1 or 2 subs, If I like SQ or SPL more. And i have never really hear any good systems before either. I know mine wont be anything high end to begin with, but it should be better then the few I have heard from friends. That The reason why i was asking all these questions. Sorry if some are stupid or obvious, just trying to learn.

And the box im building is just 0.2 cu.ft bigger then the max sealed size. So still to big if i try to seal it off in the future to test it out? At the same time i love woodworking, so it wouldnt be difficult at all to build a sealed box, specs recommend only 0.8 cu.ft. I may have left over to do that.

But I do want to try out the 2 subs to begin with, so I will build 2 identical ported enclosures.
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 10:19 AM
not stupid, not like your the first person to ask this question. but if your building two diffrent boxes. your not coupling the output. so your output with 2 subs wont be near as good as 2 subs in the right boxes. so by doing that your allready starting out behind because maybe you will decide that you need 2 subs because the output isn't there. which could be because you used 2 difrent box designs. .2 cu. ft. isn't that much bigger, quite easy to add some blocks of wood on the inside to eat up that diffrence, but now you have a box that is bigger then nessicary and heavier then nessicary. so your adding weight and losing trunk space. if you like woodworking, just make that perfect box the right size the first time and be done with it.

id suggest building a ported box that you could maybe easily remove the back and trim it down for sealed later if you decide, this way your not stuck rebuilding an entire box with all new wood..


http://www.flickr.com/photos/sndsgood/ https://www.facebook.com/#!/Square1Photography

Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 10:49 AM
alright, thanks alot for all the input guys. I apreciate the quick responses.
Re: 2 different sub boxes? Bad Idea?
Wednesday, April 28, 2010 1:05 PM
2x4's work great for eating up area.




Your car may do 13 sec @ 103 mph, but my car does 146db @ 35 hz.
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