Can bass waves actually hurt you?

[A9X]

Wow, those numbers are all over the place, from 0.3% to 7%. I didn't know there were such wild efficiency variations from model to model.

Here's a stupid question: Why are some speakers designed to have such super a low efficiency? Can you improve some other desirable parameter at the expece of efficiency?

Some of those are for hifi, some for general PA and some for specialised duties, eg the 2227 is about the highest efficiency, it's a 15, and it's a midbass. You need a fairly large box to get 80Hz, but it'll do what it does with little power.

Really, it all comes down to Hoffman; small, deep or efficient, pick two. The designers of the individual drivers have made trade offs depending upon the desired use.

Edit: as a reference, most hifi speakers (complete box sold with xover etc) are in the high 80's in sensitivity. A few will make low 90's, some low 80's. Compare that to PA/MI gear that's often 10dB better, so 10x less power required for the same SPL. The big direct radiator hifi system I'm working on, using mainly PA drivers will exceed 100dB/W. But it's big.

And I apologize if I'm interfering with the regularly scheduled flame fest.

Quite lighthearted from my end at least. I need popcorn.

 

[kevinmoore73]

Maybe to you it was point less. But none the less it is a sport. Like fishing or drag racing either one I’m not interested in but still a sport.

Designing, building, or installing loud car stereos is not a sport in any way at all. To me, it's not a sport unless there's some degree of athleticism or physical involvement.

If car stereos are a sport, then movie watching is a sport too.

 

[Kelly Lee]

Well, I think this thread has run it's course and is now closed unless Bassybill has something to add.

I think some of you really need to learn how to treat your fellow members with a bit more respect. Yes, you may disagree, you may believe someone is flat out wrong and call them on it. However, you need to to do it respectfully and without personal insults. Reread the rules here at TB people. It could save you from an infraction or even a vacation.

Have a nice Sunday.