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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.
quanghuy147
Post removed 
quanghuy147 OP
29 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
1,457 posts
 
That's precisely why they also make these:
https://voxativ.berlin/bass
tweak1
870 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
quanghuy147 OP
29 posts
 
@tweak1 EP 3.0 specs is : 48Hz–22kHz . Tannoy is full-range. So I guess we are going to need subs for EM 3.0 so it can be 'compared' to Tannoy?
Why did you say EP 3.0 is a modern version of Tannoy? It means the have the same sound signature?

Thank you!

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