[geoff]

On 29/01/2020 1:52 am, Don Pearce wrote:
On Tue, 28 Jan 2020 22:40:45 +1300, geoff
wrote:

On 28/01/2020 8:53 pm, Trevor wrote:
On 28/01/2020 7:26 am, geoff wrote:
On 28/01/2020 9:03 am, nickbatz wrote:
At what point does it cease becoming a subwoofer and become a woofer?

100Hz.

My woofers go down to 18Hz....


Most woofers go down to 18Hz. Now how much SPL that can pump out at that
frequency is another matter entirely! :-)
That aside, MANY woofers can put out a higher SPL at 30Hz than many *so
called* sub woofers. Current terminology is to call ANY woofer in a
separate single box, a sub woofer. I've seen 3 inch "sub woofers" that
can't manage 100Hz at any normal SPL let alone real bass! :-(





20Hz-20kHz +/- 2dB. (whole speaker !)
Max SPL 112dB

geoff

+/-2dB? I never saw a speaker at any price that could do that. It
isn't even a spec that means anything without some serious
qualification. Is that whole sphere, half sphere, on axis?

d


Well they sure ain't omnis !Actually the bass end is very omni as it
radiates through a smallish vertically-orientated vent.

The most specific specs I have a
*Frequency response:* 20Hz-20kHz +/- 2dB on reference axis.
*Directional characteristics:* Within 2dB of response on reference axis
up to 15kHz for +/- 10° vertically. Up to 19kHz for +/- 30° horizontally.

The LF extension is very real - The LF rumble at the start of Sting's
'A Thousand Years' (that most people don't even realise is there at all)
gets the house shaking like a reasonable earthquake.

geoff