Txhouse
Buck
5,000+ posts
little alien on campus
It would be significant. Cone area FTW.
power-fanatic07
5,000+ posts
Knockin Doors Down
Wrong. Power is staying the same so you would likely only see ~1db increase if that. And just for the record, subs don't "put out" watts.
n2caraudio
10+ year member
Senior VIP Member
As long as you have the proper size enclosure, you will have a significant difference. Even with the same power.
Buck
5,000+ posts
little alien on campus
You can't say exactly what the difference would be, especially since it'd be different subs.
power-fanatic07
5,000+ posts
Knockin Doors Down
This is true but if you bring that into factor there are several other things to factor in as well. The one 12 could be louder depending on box and install. Throw 2 12's in a shitty prefab and it wouldn't be as loud as a quality 12 in a properly built enclosure.
Buck
5,000+ posts
little alien on campus
I know that //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Done a few enclosure designs before //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
power-fanatic07
5,000+ posts
Knockin Doors Down
Oh, I thought you were "still-a-noob" //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
Buck
5,000+ posts
little alien on campus
Shhh, don't tell anyone.
Just for the record.. Your wrong lol Doubling cone area while keeping everything else constant (well doubling box/port size) and keeping power even but splitting it gains you 3dbs. Effeciency is based on BL, Resistance, Moving Mass and cone area. Doubling up on woofers doubles cone area, which means you'll sweep 2x as much air for a given excursion +6dbs. You also double your BL, 2x the excursion for given input for the system, +6dbs. Doubling resistance halves current flow, so -3db's. Finally doubling moving mass halves excursion, also -6db's. That's a 3db gain, put it into any modelling program. Also since power is remaining the same, but your gaining coil, you have less thermal compression. In a case where a woofer is already near RMS you'll likely gain another decibel or so as RE goes up pretty quick on a single woofer as power is applied.....
As long as you have adequate room so your not choking your trunk and reducing your transfer function and can fit a box of scaled up size 2 subs splitting power is much better than a single for numerous reasons. Lower distortion from less thermal and mechanical stress, more overall output, it's just also more expensive...
Buck
5,000+ posts
little alien on campus
That would only be if he was using the same sub, bro. Why put 500w to a sub that's built for 1000?
Better question woudl be why would you use 1000 watts of power to achive 140db's when you could do 143 by using a second woofer and same amp.. Even if it can take 1000 thermally who's to say it needs that much mechanically? Power compression even as you approach most speakers RMS does become a factor. 1000 watts when you coil begins to get hot actually becomes 750 as impedence is rising.. 2 woofers and you'd at least be using your amp to it's fullest potential again lol. There are alot of ways to look at it, but IMO if you can put less stress on the speakers, gain overall output, gain effeciency and have the room and money it's a no brainer. Don't get caught up with "rms" it's a marketing trick.
On an extreme level, compare say steve meades van to Gmonks old one. Gmonk had like 16 12's or somethign stupid. He also had less power or nearly the same as Meade, IIRC. On a meter they were probably somewhat close. However, in real life, it's not. Meade was pushign his 4 18's HARD.. His woofers woudl smoke within a few minutes of use. Gmonks putting like 200 watts per woofer for the same output. No burning coils, no torn spiders. He also had that kind of acoustic effeciency over a much broader range. Term labs lie too, 160 from 25-90hz is ALOT different than 160 in a 3hz range.
power-fanatic07
5,000+ posts
Knockin Doors Down
You can't compare a daily driver that seats 6 to a big ass van that only seats 2. Nice try though.
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