Question about speaker size

[johnk_10]

oh, and back to what the OP's statement about the book's author - IMO, what Bill said.

 

[greenboy]

15's give massive amounts of *tight* low bass. The reason you don't see them is because 90% of the Earth's population does not have the know how on how to properly tune a 15 inch sub...

More telling in any case of anecdotal "evidence" is what else gets said - or what doesn't get said or considered. In this case, the sheer give-away is "mobile audio competitions."

Got SPL? Yes. That's what it's about. Care about the THD of the amps clipping when going for that high SPL figure? Depends on the competition rules doesn't it? Using how many batteries? What kind of amps?

 

[PunkSweeper]

The ol' Inverse Square Law at work again: things with ears hear things that are closer to them, as LOUDER. Until more people have bioengineered auxiliary ears on the back of their knees the taller cabs and stacks always win for close-position playing regardless of sensitivity/efficiency of the speakers.

I can't really tell if you're agreeing or not.


Anyways, expanding on my earlier post, a 4x10" and 1x15" are, as far as I know, similarly egregious for dispersion. If the guy had ever had a 15 on a stand, or possibly another 15, he may not have had the problems he failed to explain properly.

 

[billfitzmaurice]

Anyways, expanding on my earlier post, a 4x10" and 1x15" are, as far as I know, similarly egregious for dispersion.

The 4x10 is worse. The wider radiating plane results in narrower dispersion in the mids, made worse by comb-filtering of the highs due to the multiple sources. OTOH most 4x10s have greater displacement than most 1x15s, so they also have more low frequency output capability. In short, the 1x15 versus 4x10 gives results the exact opposite of what the 'driver size matters' wags think they should. And yes, they both adhere to the same inverse square rule, so 'throw' is identical.

 

[PunkSweeper]

The 4x10 is worse. The wider radiating plane results in narrower dispersion in the mids, made worse by comb-filtering of the highs due to the multiple sources.

That happens to be exactly what I thought, but I didn't want to go stating assumptions as fact. Hence "Similar."