Will four 8's get louder than two tens?

[Eugenics 5,000+ posts]

How low will they get? Depends on your enclosure.

 

[01xtreme 10+ year member]

I have heard some 8's that get pretty **** low, but of course they weren't in a normal ported box. I built a TL box for my friends 8" polk momo, and it could play white girl slowed down, and still sounded good. If you were to compare the 2-10's and 4 8's in overall volume I think the 8's could be louder, but if you are wanting to find out what drops lower I would have to go with the 10's.

 

[evanhurford 10+ year member]

Why do you want 8's?

Just get one massive 12 that will blow all of those out of the water.

 

[audioholic 5,000+ posts]

I believe we can assume this guy wants to know if 4 eights will " drop as low " as 2 tens in a given box size, with a given amount of power, etc. I think that you more educated people (like you) could do a little better with 4 eights than the average guy. Eights will get low,I know mine will! But if he wants to just swap them out he will more than likely be disappointed. (low end)

Assuming he doesn't swap out the 10's for 8's with an extremely high Fs, the difference will likely not be noticeable. The eclosure will dictate freq response and LFE much more so than the raw speaker itself. Ive built an enclosure that allowed a 3.5" speaker to hit the subbass region.

 

[ThatChevyGuy 5,000+ posts]

What if i port the 8's at 32 instead of 35, will that help?

 

[audioholic 5,000+ posts]

What if i port the 8's at 32 instead of 35, will that help?

It would help the system hit *abit* lower, yes.

 

[2critical 10+ year member]

Assuming he doesn't swap out the 10's for 8's with an extremely high Fs, the difference will likely not be noticeable. The eclosure will dictate freq response and LFE much more so than the raw speaker itself. Ive built an enclosure that allowed a 3.5" speaker to hit the subbass region.

I totally agree, but if your 3.5" speaker had the impact of say a 10" driver they wouldn't sell many woofers would they? I figure if the original question was "will 4 eights get louder than 2 tens", you can say the question is a little simpler than it is being made out to be. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[audioholic 5,000+ posts]

I totally agree, but if your 3.5" speaker had the impact of say a 10" driver they wouldn't sell many woofers would they? I figure original question was a little simpler than it is being made out to be. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

No, you are absolutely correct. That 3.5 would never rattle any windows (lol), but it proved even a ridiculously small speaker can be made to hit low notes.
The difference in 10" and 8" models' Fs is usually a couple hz, hardly noticeable. And if we are comparing different brands/models, then the speaker design itself will dictate its characterisitics for LFE more than the cone diameter.

Cone diameter only really lends itself to added displacement potential. Yes this is important in low freq notes, but this difference can be overcome in many other ways (excursion, efficiency, enclosure choice, input power, etc). But, IIRC the original question is swapping two 10's for four 8's... the 8's will have more cone area anyway.

I barely remember the topic of this thread, and Im too lazy to re-read it... so if Ive veered off on a tangent, forgive me. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[XtwistedX 10+ year member]

if u get the right ones yes it will

 

[memphisman 10+ year member]

I believe we can assume this guy wants to know if 4 eights will " drop as low " as 2 tens in a given box size, with a given amount of power, etc. I think that you more educated people (like you) could do a little better with 4 eights than the average guy. Eights will get low,I know mine will! But if he wants to just swap them out he will more than likely be disappointed. (low end)

A True Bass Solutions "ultra" 8 will go pretty D**M low

 

[T3mpest 10+ year member]

cone sizd does NOT dictate how low a speaker can go. A frequency is literally the speaker moving back and forth a given amount of times per second. There is no reason to beleive that a small speaker can't move slowly...

The only issue with smaller speakers is that to hit a given SPL at lower frequency you need to move alot of air. After all, since the speaker is moving less times per second, it needs to either grab more air (bigger cone) or increase the distance it moves (SPL) to move create the same pressure variation as even a very small driver does, since it gets the advantage of moving 20,000/second! (that's why tweets can be small and effecient). Anyway to overcome the displacement issues simply use enough drivers to equal out to a bigger cone, or use a passive radiator or ported box.

 

[audioholic 5,000+ posts]

cone sizd does NOT dictate how low a speaker can go. A frequency is literally the speaker moving back and forth a given amount of times per second. There is no reason to beleive that a small speaker can't move slowly...
The only issue with smaller speakers is that to hit a given SPL at lower frequency you need to move alot of air. After all, since the speaker is moving less times per second, it needs to either grab more air (bigger cone) or increase the distance it moves (SPL) to move create the same pressure variation as even a very small driver does, since it gets the advantage of moving 20,000/second! (that's why tweets can be small and effecient). Anyway to overcome the displacement issues simply use enough drivers to equal out to a bigger cone, or use a passive radiator or ported box.

Lets not completely ignore Fs in the discussion. An array of tweeters that equals the cone area of a 15" sub will still not reach the lowest octaves as well, to use an extreme example.