Is that a serious reply?Because they don't say what volume it's at.
If it's 60dB it might do it.
Is that a serious reply?
You've got to be kidding me.
It says within + or minus 3 dB @ 11 to 200hz!
My 6.5" Mains couldn't produce 60dB @ 25hz in my system running 80dB on average, fwiw.
Tom, you obviously know more about it than me, so I'll have to bow to your superior knowledge.He is correct. Sweep it at 60dB and it could very well be 6dB down at 11hz. Also, if they don't specify the test environment it could be anechoic, quasi-anechoic, or some sort of simulated "corner loaded in small room". There's nothing inherently misleading about their specs. We just have to use some common sense in interpreting them.
Tom V.
All you need is for the sub to hit the low number and you can EQ everything above there into line. You'll be giving up loads of headroom, but it's possible. I don't know that that's what they're doing of course, but compression sweeps would quickly tell you.Tom, you obviously know more about it than me, so I'll have to bow to your superior knowledge.
One thing though. 6dB down is not 3dB, as is quoted in the specs.
I still think it's a massive misrepresentation and struggle to see how a 6.5" driver can be 3db down at 11hz compared to 200hz in any world including a resonant box.
It's academic, as anyone with half a brain would know that this box won't produce any usable output at those freqs.
The trouble is, the sort of people who like the idea of a matchbox as a sub, won't know anything at all.
Then again, they probably won't know what they're not getting
Tom, you obviously know more about it than me, so I'll have to bow to your superior knowledge.
One thing though. 6dB down is not 3dB, as is quoted in the specs.
I still think it's a massive misrepresentation and struggle to see how a 6.5" driver can be 3db down at 11hz compared to 200hz in any world including a resonant box.
It's academic, as anyone with half a brain would know that this box won't produce any usable output at those freqs.
The trouble is, the sort of people who like the idea of a matchbox as a sub, won't know anything at all.
Then again, they probably won't know what they're not getting
you missed out “Marketing”.It looks like a great bit of engineering/design to me, well done to Kef
no doubt clever tech but at one hell of a price, there subs havent been reliable in the past either i owned 2 both went kaput, rel,velodyne,svs,bk all pretty solid reliable designs for a lot less.
The Lyngdorf 1120 is a nice amp but why not just use the LS50 Wireless II and this sub. Very minimalist approach.£1400...
They’ll have to be awesome for that price.
For the well heeled though (assuming they are any good) then a pair of these, a pair of the LS50 Meta speakers and a Lyngdorf 1120 might be the best sounding, best looking lifestyle type hifi around.
For £5800.
Still, plenty of people have spent more for less.
The Lyngdorf 1120 is a nice amp but why not just use the LS50 Wireless II and this sub. Very minimalist approach.
The sub makes some big claims and it seems fairly innovative. I'd like to see some real world reviews.
Those figures are physically impossible from drivers and a box that size.
My 18" driver in a 10X bigger box struggles to do 11hz.
How do they get away with those nonsensical figures?
I'd like to see someone challenge those figures in court.
To think some people will swallow it too, just because it's Kef.
Thats in room response. My 10inch Bass driver will happily show a good response curve far below 20hz in room vs the spec,Pressure Vessel Gain is amazing: My Single SVS SB2000 (12" driver)
Granted it's not as tiny as the KEF, but they do specify a room size. I knocked up a calculator for PVG. I wish I'd known this before dropping into a big ported SB13 7 years ago for my main theater. I could have gotten away with a much smaller sub.
I get 34db of gain at 6hz. That's in my office, which is the average large bedroom size in the UK
FREQUENCY RESPONSE ON-AXIS | ±3 dB 17Hz – 250Hz |