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General Speaker Discussion Calling all Speakers |
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#1
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New Kef LS50 Meta Major Breakthrough For Box Speakers !
Kef has found a way in canceling the backwave by 99% with their new Metamaterial Absorption Technology ! This is a major breakthrough for box speakers !
This is much better than the backwave canceling technology that Vivid, B&W and Yamaha uses ! Here's feedback on their Kef LS50 Meta speakers with this new technology ! More of their speakers coming out with this new technology soon ! https://www.lite-magazin.de/202/09/k...ltes-material/ |
#2
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Very cool.
“The central question is: How can a conventional material be modified so that it has the greatest possible absorption capacity, i.e. does not radiate vibrations again? The answer is MAT: the material is transformed into a metamaterial, in this case the surface is shaped to have a highly complex structure. This structure is reminiscent of a labyrinth with numerous canals. Each of the precisely calculated channels now absorbs sound in a precisely defined frequency range. In total, the channels ensure that supposedly 99 percent of the sound is absorbed - the sound disappears like in an acoustic black hole. This is a huge step forward compared to conventional approaches, with which a maximum absorption of up to 60 percent should be possible. This makes MAT ideal for use in loudspeakers, because it eliminates the unwanted sound emitted from the rear of the chassis.” |
#3
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And it gives you the best of both worlds...open baffle and box speakers!
Steve Guttenberg has TAD speakers too ! https://www.youtube.com/watch?v=oKTYvP7YQ0Q&t Last edited by Rick721; 09-24-2020 at 09:49 PM. |
#4
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PMC uses an absorbing material in their transmission line but takes it a step forward by allowing the deepest bass to exit a port in phase with the main.
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#5
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Quote:
His shirt was a bit of a distraction the first few minutes in terms of trying to figure out the hidden meaning? The “meta” version sounds like a more accurate and less boxy sounding speaker but one that can be brutally revealing of bad recordings. Proper synergy with supporting gear will be more important with this version to strike the right balance. |
#6
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Quote:
Might be a great match for the Meta's and future Kef speakers with this new technology.. |
#7
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Just heard from my Editor, looks like I will reviewing a pair of these for TAS...
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#8
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Its likely fiberglass or Poly-fill; the purpose is to increase the "effective air volume" in the cabinet to enable lower bass response.
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Lumin P1 streamer/DAC/preamp, Constellation Inspiration integrated TT: Michell Gyro SE MkII, SME V, Koetsu Urushi Vermilion, EAR324. Harbeth 30.2s, REL R-305, Shunyata Alpha V2 ICs, Alpha V2 SPs, Sigma XC, Sigma NRv2, Omega QR-s & Alpha NRv2 PCs, segmented Altaira SG stack w/ Alpha & Omega CGCs, Everest 8000 PD. Remote Server Room: Uptone EtherREGEN, AfterDark Master Clock & LPS, Alita, Battle Angel, (Akasa NUC Roon Core), iFi DC Purifiers (for SMPS used for Alita & router), Shunyata Gemini combo power distributor & Altaira-type CG GP-NR hub, Venom & Alpha CGCs, Shunyata NRv14 power cords for digital components. |
#9
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I am very interested to learn about the materials used to eliminate the back-wave while also changing the thermodynamic process in the enclosure from adiabatic to isothermal.
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Main System: Amati Futura Mains Amati Homage VOX Center, Proac Response 1sc Rears, Three MC2301's for L,C,R MC 602 for the rears C 1100, MX 151, MCD 1100, MR 80 Nottingham Dais with Wave Mechanic Sumiko Palo Santos Presentation SurfacePro 3, RPi 4, ROON, WW Starlight Platinum USB, Schiit Yggdrasil, Benchmark DAC3 HGC MX 151, OppO BDP-95, JVC RS-500 DILA projector, 106" diagonal Stewart Luxus Screenwall Deluxe with Studiotek 130 G3 material. Lake House: Ohm F, MC 275V, C2300, MR 77, Rega P3 OnDeck: McIntosh MAC 4300v |
#10
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Not even close.
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