best sound. loudest results

Gbob2003
10+ year member

Great Odens Raven
So I am looking into getting either some Obsidian audio 12's (pair), or a pair of skar vwx-12's. I want to know from your guys experience which is a better overall sub and which will sound better in around 2.5 cubes at 30 hz. I like low bass. i have herd skar delivers that very well but i just wanted some second opinions please, THANKS!!!!

 
Opinions? Tune the box a tad bit higher...

There's very little program material in the 30hz range and I don't understand why you'd sacrifice efficiency for minimal SPL gains at lower freq. Tune above 35hz and use a subsonic. The only difference you'll hear is overall output; the 35+hz tuning will be a bit louder while it'll still hit the low stuff. Remember, a sub will play below the port tuning...not much, but it will.

The low sub-bass stuff is really bass you feel instead of hear. It's a lot easier to sneak a Bass Shaker under your seat and throw on a 40hz FMOD on a tiny 2ch than it is to install the cone area & power needed to reproduce those uber-low freq. with any affect.

My advice, really, is to plan on making a different box. I've never been really picky subwoofers as they only play 1-1.5 octaves of music anyway. A good box & a great amp will go a long way in making almost any subwoofer sound pretty good.

 
Opinions? Tune the box a tad bit higher...
There's very little program material in the 30hz range and I don't understand why you'd sacrifice efficiency for minimal SPL gains at lower freq. Tune above 35hz and use a subsonic. The only difference you'll hear is overall output; the 35+hz tuning will be a bit louder while it'll still hit the low stuff. Remember, a sub will play below the port tuning...not much, but it will.

The low sub-bass stuff is really bass you feel instead of hear. It's a lot easier to sneak a Bass Shaker under your seat and throw on a 40hz FMOD on a tiny 2ch than it is to install the cone area & power needed to reproduce those uber-low freq. with any affect.

My advice, really, is to plan on making a different box. I've never been really picky subwoofers as they only play 1-1.5 octaves of music anyway. A good box & a great amp will go a long way in making almost any subwoofer sound pretty good.
Well the 30 hz was just an estamate. so like 35-37 hz u think would be bettter?

 
Opinions? Tune the box a tad bit higher...
There's very little program material in the 30hz range and I don't understand why you'd sacrifice efficiency for minimal SPL gains at lower freq. Tune above 35hz and use a subsonic. The only difference you'll hear is overall output; the 35+hz tuning will be a bit louder while it'll still hit the low stuff. Remember, a sub will play below the port tuning...not much, but it will.

The low sub-bass stuff is really bass you feel instead of hear. It's a lot easier to sneak a Bass Shaker under your seat and throw on a 40hz FMOD on a tiny 2ch than it is to install the cone area & power needed to reproduce those uber-low freq. with any affect.

My advice, really, is to plan on making a different box. I've never been really picky subwoofers as they only play 1-1.5 octaves of music anyway. A good box & a great amp will go a long way in making almost any subwoofer sound pretty good.
Saying that subwoofers make up a tiny margin of the sound spectrum is like saying that you use crappy tweeters because there isn't much material above 7k Hz. The full audio spectrum should be able to be reproduced in your sound system.

There is no huge benefit from tuning higher if you don't have to. A subwoofer should play a broad bandwidth and play it at a desired decibel level throughout that bandwidth. You shouldn't have to cut corners by tuning higher and then adding a vibrating disk under your seat because your subwoofer falls short of reproducing the bottom octaves.

Tuning at 32 Hz is more than adequate for most subwoofer systems to play down into the lower 20 Hz region before output trails off. However, if you want to tune to the 30 Hz you can do so without any problem using an Obsidian 12" woofer in the specified box volume that you have. However, 1.25 ft^3 per driver is a bit on the small side if you are going to tune to 30 hz flat. I would run 1.5 ft^3 per driver tuned to 32 Hz or 35 Hz.

Tuning higher near 40 Hz will only reduce your bandwidth and create a big peak at/near tuning. Why not utilize the full potential of your subwoofer instead of choking it off at higher frequency?

 
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Gbob2003

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