Mixing Subs

[Savant 10+ year member]

Originally posted by Billyf17 Ok, what about the "perfect" set up. Perfect meaning it was made for exactly what I want and does what I want and nothing more nothing less.

 

The 2 10's facing the cabin from the trunk with ports coming into the cabin under the passenger seats of my car. The 15 facing skyward in the spare tire well in my trunk. Port from that box coming to the center of the rear seats facing the ceiling/rear window. (my car has 2 rear seats and a divider) Along with that they are the same sub brand, same model, just different sizes. The boxes are completely independent. Not one edge of any box is tangable to the other boxes. Amps all the same brand, different models (just for power sake). Gains matched to keep the subs at the same loudness level.

 

Now, I want factual answers here. If it sounds bad tell me why, how, and what makes it sound bad. Not just because it will. I don't want opinions like oh I'll look like a **** having some diversity in my car. I just want sound, I'm interested in SPL but I want a balanced sound foremost. The SPL will just be for show off.

 

So go and start thinking real reasons why I shouldn't try this.

There is NO real reason not to do this, as long as they are playing different ranges, consistent for a size (so, the 15" runs to ~45 Hz, the 10"s from ~45 to whateveryouwantitcutoffat).. With the gains set right to balance the volume, you shouldn't have any issues.. and 'I' don't think it looks bad to have different sizes in a set up, especially since you say they are the same brand.. should make it even better/cleaner looking (which has NOTHIGN to do with performace or SQ).

I say do it.. if you don't like the way it sounds, fix it.. change woofer sizes, modify frequencies, etc.. what ever it takes.. but I think you will be fine. I can't think of any 'real' reason there would be an issue..

 

[taylor 10+ year member]

A: again, if you had a switching system it would be cool...i have never heard a "mix" system that i liked...

B: it looks extremely gay

 

[Savant 10+ year member]

Originally posted by taylor A: again, if you had a switching system it would be cool...i have never heard a "mix" system that i liked...

B: it looks extremely gay

Dude, for B, the 15" is IN THE TRUNK.. no one will even see it while he's motoring around..

and for A, just because you haven't heard one you liked doesn't mean shit.. how do we know they weren't over-driving the smaller speakers (or the bigger ones for that matter) and had muddied sounds comming through? or had all the different sizes trying to play the same frequencies?

This guy asked for real reasons and you come back with 'looks gay' and 'havent heard' crap? Comon... try to be helpful.. if you only have 'opinions' about mixing, then stop responding.. show some real reason why it won't work or please, shut up.. you aren't helping this guy..

looks gay //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[taylor 10+ year member]

well seriously, why would you???why not do 3 10's, 2 15's, do a switching system....all at once, why???????????????????????????????, one guy on here wants to do a stroker with 2 eclipse's.....WHY????

 

[taylor 10+ year member]

why not do midbass up front instead????

 

[taylor 10+ year member]

the only mix sytems i have ever seen in magazines all have a switching system, usually 15's for spl and 10's or 8's for sq.....never listened to all at once....obviously if their car is featured, and they hold a numerous 1st's in usac and iasca sound q there must be a reason why they don't do it.....

 

[Savant 10+ year member]

If you already have the speakers or can borrow them.. or can get a great deal on 'something'.. why not use it?

sure, if you are gonna design a system from the ground up, maybe you don't want to mix.. but what if you are worried about space? 2 15"s take up more room than 2 10"s and a 15".. (at least that's my impression, especially if you are talking ported)..

I personally don't see a reason to buy 'more speaker than you need' for an application.. 12"s sound better at 40 Hz than 10"s.. but I didn't want to over-run the 12"s by making them go to 175(ish).. so I got 10"s for that (~75 - ~175)..

It's all a matter of what you are trying to do.. somethings might not make sense, but in this guys case, I think he's got a good idea.. save space, get some real good bottom, **** good 'near bottom' on the 10's.. etc..

Eventually I'm gonna get either 8"s or 6.5"s for the back seats area for picking up from the 10"s to the front speakers..

It's all relative.. I'm not trying to tell you 'not' to do a fully matched system if you want, but please try to be helpful, especially when the poster asks to get away from the wandering points.. Sometimes people really want to know if there is an issue with doing something, and telling them 'it looks gay' doesn't help..

I'm sorry if I sounded dickish before.. just trying to get this guy some info .. ya know? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Savant 10+ year member]

Originally posted by taylor the only mix sytems i have ever seen in magazines all have a switching system, usually 15's for spl and 10's or 8's for sq.....never listened to all at once....obviously if their car is featured, and they hold a numerous 1st's in usac and iasca sound q there must be a reason why they don't do it.....

cause for pure SPL bigger is better.. but for SQ it's not.. you don't win SPL comps on 10"s (leave it)... So, when they are daily driving their systems they switch to 'smaller' stuff.. which runs the SAME frequencies as the 'big' stuff in comps..

my self, I think its sad to have comps where you let people toss money to win (only running 'special' stuff for the comp).. either 'this is your system' or its not *shrug* just me..

But, that's in magazines, from people who want to do nothing but win comps.. has nothing to do with mixing being bad.. right?

 

[taylor 10+ year member]

yeah i understand, but midbass upfront will better fulfill that, and 3 10's would cover the low end more than enough, if not enough go with ported then.....

 

[Savant 10+ year member]

Originally posted by taylor yeah i understand, but midbass upfront will better fulfill that, and 3 10's would cover the low end more than enough, if not enough go with ported then.....

ported doesn't give you lower response.. ported is louder..

some people feel 10"s are enough to handle 35 Hz.. not me.. 12"s or bigger //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif ported or not.. my 12"s are sealed, and when my teeth tickle I know I have some good bass goin on //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[taylor 10+ year member]

yes, but obviously if it's never seen in the ring, there is a reason why they stick to all the same size.....i try not to say stuff like that, i know pro's arent always right, but i have yet to see an major SQ contender even enter with a mix system...midbass would do the job better, everything should be from up front anyways....

i run a single 8 up front for bass, then midbass then my mids themselves.....Everything should be upfront any ways......BUT the less in the back the better, and if you don't have room up front, tune your woofers low, and get rid of all the rattles so you can't detect where your bass is coming from.....

I know i am straying off topic, i don't see any benifits from mixing when midbass up front could do a better job....

 

[Savant 10+ year member]

Originally posted by taylor I know i am straying off topic, i don't see any benifits from mixing when midbass up front could do a better job....

And this may WELL be true, but the question was 'is mixing bad'.. not would I be better off mixing versus fleshing out the system up front.. see what I'm saying? I agree with you.. flesh it out decent.. but the worry is about there being problems with mixing, and, to the best of my knowledge, no.. no issue at all..

best solution? probably not.. problem? no..

 

[ngsm13 5,000+ posts]

Originally posted by Savant There is NO real reason not to do this, as long as they are playing different ranges, consistent for a size (so, the 15" runs to ~45 Hz, the 10"s from ~45 to whateveryouwantitcutoffat).. With the gains set right to balance the volume, you shouldn't have any issues.. and 'I' don't think it looks bad to have different sizes in a set up, especially since you say they are the same brand.. should make it even better/cleaner looking (which has NOTHIGN to do with performace or SQ).

 

I say do it.. if you don't like the way it sounds, fix it.. change woofer sizes, modify frequencies, etc.. what ever it takes.. but I think you will be fine. I can't think of any 'real' reason there would be an issue..

i agree only under a few conditions! same brand like the original guy sed, different boxes, and diff amps. BUT most importantly like savant sed, have the 15's cut off above 20hz and below 45hz...so subsonic filter and lowpass filter. The the 2 10's have the subsonic at 45hz and the lowpass at like whatever you want. as long as the 15 and the 10's aren't playing the same frequencies at the same time then it should be 100% fine. Actually it SHOULD sound **** good! So, if i had the money, i would sure as hell try it. I might even try to build the ultimate vehicle with 6 3/4" mids up front along with components. BUT, i don't have the money. So, i agree and say u should try it and let us know how it sounds. peace

NG

 

[Billyf17 10+ year member]

Ok thank you for some real responces. The fact is my car is going to be a show winner, not will hopefully, will. If you disagree then stop on by my neck of the woods and see what competition I have.

I want the works, the system, the mobile video, the game system, the car looks, and the performance. The mobile video is the main reason I want the full frequecy range covered. I don't care if you can't hear below 50 hz or whatever it is. You can FEEL it with the right setup. When watching a movie in a theater, or at home, does that system fall out when the sound falls below say 20hz? I have yet to come across it, from a decent theater system.

On my car the real test to see if I wanted a 15 or not was when my friend burned a cd that had a test tone from literally 0hz-100hz. Well from 5-20 with the doors open, I swear the doors were acting as wings, they shook all to hell. After that I was hooked on 15. Now I know there isn't a driver than can reproduce 5hz TO FEEL IT A BLOCK AWAY. That is the key, from a block away. I just want something that when it comes right down to it, won't skip any sound reproduction and gives me the fullest, brightest imaging possible. I am treating my car as a traditional say 5-way speaker. It will have the extreme lows, the low to mid lows, the mids, the upper mids, and the highs.

Once again thanks for some real reasons. And for those who couldn't get it the first time about opinions, learn some comprehension. You'll make it a lot further without pissing people off.

 

[Savant 10+ year member]

Originally posted by ngsm13 i agree only under a few conditions! same brand like the original guy sed, different boxes, and diff amps. BUT most importantly like savant sed, have the 15's cut off above 20hz and below 45hz...so subsonic filter and lowpass filter. The the 2 10's have the subsonic at 45hz and the lowpass at like whatever you want. as long as the 15 and the 10's aren't playing the same frequencies at the same time then it should be 100% fine. Actually it SHOULD sound **** good! So, if i had the money, i would sure as hell try it. I might even try to build the ultimate vehicle with 6 3/4" mids up front along with components. BUT, i don't have the money. So, i agree and say u should try it and let us know how it sounds. peace

 

NG

Well, my 2 12"s are currently hooked up and cut at ~70 Hz.. so far pounds pretty **** hard.. my 10"s aren't running because I don't have a way to limit them to above 70, but my FMOD inlines are on the way (should be here Thursday).. once I get them I'll be runnin mixed subs.. I'll let you know how it sounds //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif