KEF's meta material gimmick?


Hi,

A thought just occured to me recently. Is KEF's Meta material just a genius marketing gimmick? I mean everyone and their grandmas reviewed the KEF LS50 Meta and they spent way too much time explaining the purpose of the meta material. I know white papers were published with conclusive results. KEF is beloved by the "measurements first" crowd so nobody bats an eye. The illustrations for the Meta material portray an intricate maze made of a some kind of gel. But isn't that just $1 piece of molded rubber? It's just a coaster relax. 

I wanna bet real money that the 365+ cork coasters from IKEA ($2.50 for 2) would accomplish the exact same thing. Cork is a great sound absorbing material. It's complex. Just glue that at the back of the driver. Mission accomplished? Am I missing something? 

 

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Showing 3 responses by seanheis1

The LS50 Meta and the KC62 sub in a small room is reference level sound. At least with the gear I have hooked up to them. Benchmark LA4 preamp + AHB2 amp | Lumin X1 DAC.

@yyzsantabarbara that sounds super resolving…but is it clinical sounding like a studio monitor? My worry would be fatigue, especially on recordings that aren’t very good. 

 

I would ask, how is meta absorption better than using insulation type material behind tweeter? 
 

What do the Revel Salons and other engineering first reference speakers do to deal with tweeter backwave?

Comparing LS50 Meta to non-Meta, the frequency response is a little different so it looks like a crossover update is going to account for at least some if not all of the differences. 

 

 

The new series do seem to minimize brightness and metallic overtones, possibly at the expense of detail from what I have heard during demos.  
 

My guess is that the loss of detail would be due to frequency response shaping…less metallic sounding would imply lower distortion.