Can a set of Ls50 metas surpass or equal a set of Kef blade metas with subwoofers


I recently purchased a nice set of Ls50 metas off a fellow audiogoner..l have them on 33 in. stands in a large room.They are powered by a Hafler XL600(450x2) @ 4ohm.The metas are rolled off at 140hz.Behind the metas there are 2 line arrays of 6 (12 total)1000 watt velodyne 8In. Sealed subs.next to those there are 4-12 in. Subwoofers in sealed boxes with radiators tuned to 25hz,powered by 2 Crown K2's .l have a Mcintosh front end and lm using electronic crossovers.Everything is in phase,level matched and tweaked... Sounds amazing and effortless. I keep looking at the blades and wondering if there any better at 35,000 dollars...Aesthetically probably yes...Does anyone know if the blades have a better UNI Q driver?

128x128vinnydabully

Showing 6 responses by mapman

Agree with @vinnydabully.   Ls 50’metas are a benchmark setting product and every hifi enthusiast should hear a pair. 

I agree, based on my experience,  it’s objectively hard to beat ls50 meta and even a single well integrated quality sub for good sound at spl levels most people would typically want. It can be done but not easy especially for the cost.

 

Having said that, subjectively one never can be sure what will tickle another’s fancy best so that is a totally different story.

Yeah Blades are one of very few speakers in their price class that I would seriously consider owning. I love how KEF puts out extensive well written technical white papers to help explain and demonstrate (with metrics) how their products work and perform and how the design and technical innovation makes them unique. That’s the Engineer in me speaking.

No doubt the location of the powered bass drivers on Blade would be a plus and the high quality enclosure also a big plus so the whole Blade UniQ design seems quite unique and not emulated easily with separate sub enclosures instead. One of the few out there I would consider as challengers to Ohm CLS design. Metas have very good dispersion pattern and UniQ driver for coherency which is why I am a KEF fan as well as Ohm these days. But $35k? Ouch. Lots of quality engineering there but still ouch.

Well my speculation is that if crossed over at high frequency to two or more good powered subs to enable higher spl without breakup,  the metas would get pretty close to Blades in sound.  Just speculating.  Good quality  monitors + powered subs set up well are almost always a more cost effective way to achieve a high level of performance.  Ls 50 metas are very very good…..again within their limits while one would expect Blades to remove those limits. 

I hope not. Ls50 metas are great within their limits but their limit is spl level. I use a sub with mine and do not feel inclined to go louder than 90db even in the small room they are in. Maybe if I used an active crossover to roll off the low end on the metas that would help some I am sure.

I have large Ohm F5 in the next room off same amp. These are comparable in size to the KEF blades but cost way less. Those go loud and clear with no strain in comparison to metas + sub.