mixed sizes

[dlothcebelyk 10+ year member]

So I know its a big no no to mix sub sizes but why? what if you had some for 20-60hz and some for 60-120hz..

I would think it would be the same thing as midrange and mid bass in 3 way setups.. you would have to bp the 60-120hz but its w/e.. and i would think doing it that way the size wouldn't matter.. i would think the waves being different wouldn't cancel each other out..

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[dumple 5,000+ posts]

subs that play 120hz and sound decent where?

 

[dlothcebelyk 10+ year member]

subs that play 120hz and sound decent where?

it was an example.. so fine 25hz-50 and 50-80

 

[JimJ 5,000+ posts]

That "50-80" range should be handled by your midbass drivers.

Competent midbasses should play down to where the subs take over...

 

[Crimson Boom 10+ year member]

That "55-80" range should be handled by your midbass drivers.
Competent midbasses should play down to where the subs take over...

I actually agree with you for once

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[duece212 5,000+ posts]

contact cotjones, he has great experience in running different size subs together

 

[thegreatestpenn 5,000+ posts]

you can run different size subs together, but good mids go down to the 50's so what you propose isn't necessary.

 

[Sarthos 10+ year member]

Yes, and no. It ends up coming down to install if you do that. On a sealed box its supposed to work fine, so long as the subs have separate air chambers.

And generally good mids should run that low, although it might sound better to have your mids crossed closer to 80-100, and have a pair of 8s from say 50-80, then an 18 for the 20-50. But can't say entirely for sure until its done.

 

[dman4486 5,000+ posts]

contact cotjones, he has great experience in running different size subs together

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[KOL 10+ year member]

you don't want midbass behind you funkin up the sound stage

a good sub(s) in the right enclosure can handle the sub frequency bandwidth just fine without the need of upper or lower end help from a different sized sub

when in doubt, stick with the KISS mentality

 

[mlstrass 5,000+ posts]

well I learned at a show a few weeks ago that you need to run mixed sizes to cover all the frequencies. Guy couldn't tell me what freqs when I asked, so maybe he was wrong...

He also told me 10's/12's (what he had) play cleaner then 15's (what I have). Was funny when I got the 1st place trohpy for sounding the best.

 

[fozzy2134 10+ year member]

I think the bigger sub would just cancel out the small one sounds horrible to mix subs in my opinion

 

[PaulD 10+ year member]

you will get some destructive and some constructive interference, which might prove difficult to EQ out ... it will also cause phase problems you not be able to do anything about.

 

[bobdole369]

It's the same reason why you don't have more than one set of speakers running at the same frequency. The sound waves cause peaks and cancellations, and combine to form harsh sounding harmonics.

Also as the drivers are not physically in the same location, the sound reaches you at different times. Most of the time your midbass goes down to 60ish anyways, so no reason to run anything but a single sub.

 

[dlothcebelyk 10+ year member]

It's the same reason why you don't have more than one set of speakers running at the same frequency. The sound waves cause peaks and cancellations, and combine to form harsh sounding harmonics.
Also as the drivers are not physically in the same location, the sound reaches you at different times. Most of the time your midbass goes down to 60ish anyways, so no reason to run anything but a single sub.

ya i usually try to run all my speakers at different frequencies... you sir are a moron..