Article: KEF LS50 (David) Versus JBL 4722 Cinema (Goliath) Speaker Comparison with Binaural Recordings

[Richard Dale]

6 minutes ago, hionhifi said:

@mitchco, great evaluation. I always enjoy reading your articles. 

 

Do you have any idea if these results can be obtained using the active version of the KEF LS50, the LS50W’s? I’m thinking maybe not since the LS50W’s are active and there’s no way to get the audiolense corrected subwoofer signal into the LS50W signal path. I’m unsure given the LS50W’s only have a subwoofer out. 😐 

 

If I can’t build it with the LS50W’s I might just look at replacing them with a pair of non-active versions and build it that way. Your results are amazing and previously I thought I could only get these results with something much more expensive like the Dutch & Dutch, Kii’s, or Genelecs. The fact I can get measured, repeatedly good in-room audio performance for under $3000 is amazing 😉 . Kudos to you for putting this evaluation together. 

I use KEF LS50 Wireless speakers with a KEF R400b sub woofer and it sounds great. I cross the sub over at 70 Hz and cut the LS50s at 70 Hz with the KEF Control app. At the moment there is no way of configuring the impulse response to time align the subs with the main speakers, and there is only a phase switch on the R400b to switch to out of phase. I could physically move the sub backwards and forwards though instead, and I think I'm going to get a UMIK-1 microphone and REW to tune the sub woofer via measurements.