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Small drivers vs big drivers

Hi,
I have a question that is always in my mind recently. I see some speakers with small  drivers (5-9 inches) that is reviewed to be able to throw out big sound stage and go down to 18hz-20hz. Some other speakers with big drivers (10-15 inches) though are commented to have 'big sound stage' but can only go as low as 30-35hz. 

To make the situation more complicated, some speakers have small drivers but there are many of them. Can many small drivers be compensate for the size limitation?

I don't know which specs determine a wide sound stage and the ability to reach low frequencies.  What is the pros and cons of each design?

Thank you!

Huy.
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danoroo
239 posts
 
mzkmxcv said:

"the more it can move back and forth, the deeper it can go."  

With all due respect, I don't think this is accurate.  The more the cone can move back and forth is more a function of the volume it will play a given frequency,  not the frequency it produces.  The frequency is a function of how many times per second that movement is occurring.  
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quanghuy147 OP
79 posts
 
Thank you all for your input. It's an eye-opening for me.

Regarding the bass, if I get it right, the 'safest' / 'best' way is to get speakers which bass diameter is more than (10 inch) so it can move air? Is it right if I relate the ability to move air to the realistic experience when you listen live to a big orchestra with some timpanis?

I'm interested in a pair of 'full range' drivers: Voxativ, which are 7.5". Looks like it is one of the flagship / biggest drivers. I wonder why they don't design big drivers so as to be able to re-produce the strength and the mass of a big orchestra?

The specs of the pair is here: https://voxativ.berlin/products/acx2

twoleftears's avatar
twoleftears
5,320 posts
 
That's precisely why they also make these:
https://voxativ.berlin/bass
tweak1
3,680 posts
 
I neglected to say that speakers like Tannoy have one big concentric driver

Emerald Physics 3.o is a modern open baffle version of it
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