KEF LS50 Wireless II vs. Harbeth P3esr


I have an approx. 200 sq feet rectangle office space. Currently running Harbeth P3esr with Croft Acoustics phono integrated hybrid amplifier (ECC 83 tubes and MOSFET) with Node 2i streamer passing through Metro Acoustics Onyx NOS dac. Running Dueland 12GA oiled speaker wire. The sound is musical, detailed, airy and comfortable to listen to. Vocals are outstanding, instrument separation is just right - listening to music is a dream for hours long. Lifetime subscription of Roon with Tidal and Qobuz active services. One would ask - so why the itch to change anything. 

 

I find myself not listening to music as much as I'd like to due to the 'convenience' factor. I would like the Croft tube integrated to be on all the time, available for music play back on demand, between meetings or every evening - but I know that's not recommended due to the high heat generation and adversely impacting the tube lifespan. The amp does not have an idle and a wake up state. I have to 'plan' my listening sessions by warm up time and being careful not to shut down in between breaks and my next listening or timing it by shutting it down when long enough. 

 

Enter the 'convenient' KEF LS50 Wireless II speakers. Rave online audiophile reviews. Got a pair from my dealer for 45 days. Ran the speaker for 120 hours break in period and configured the DSP along with Roon MUSE setting for optimal room configuration. The KEF LS50Wii are very convenient all in one system. When not in use for 20 mins they go in standby mode to be woken by the next stream of music playback. They are Roon certified, and can play every sort of file format and stream including chromecast. But they just dont sound as good as my Croft and Harbeth set up. 

 

Close, but not the same. I think the KEF's can benefit from a better internal DAC. The sound lacks details, music separation, and sweetness compared to the Harbeth's. It sounds compressed. I have done a lot of A/B by having both on equal height speaker stands and connected to Roon - its a night and day difference. I am trying really hard to have the KEF play at par with the Harbeth set up so I can simplify my audio system and also be able to play music on demand with the KEF being on all the time in stand by mode. If I had not listened to my Croft and Harbeth set up first I would have bought the KEF in a heartbeat. But I feel I will be sacrificing quality listening session over quantity. 

 

Not sure if I am missing some configuration that would wake up these speakers or should be looking at alternatives like the Buchardt a500 that would sound better then my current set up. I like the convenience of active speakers but....

 

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Thank you @larryi ​​​​@kota1 

I am not sure if I want to spend extra on power cables for the KEF if I have not yet decided on them. I love the concept/convenience of active speakers and will probably give Buchardt a500 a shot before closing the chapter on them. 

Also, will play with the room setting DSP a little more and do further A/B tests with KEF and current system before returning them. 

I use active speakers and it is cost effective when you have the designer match everything and then purchase it as a complete unit.

FWIW: I auditioned the original LS50 for my desktop system and settled on the P3ESR, which I've had for almost 10 years now. They are really good speakers!

I use two pairs of Dynaudio powered speakers, living room (focus) and bedroom (xeo). Both are configured wirelessly other than power cords. I enjoy the convenience, and never put my turntable and cd player back in the mix. I’ve never heard the Kef wireless, but bet they sound good. 
 

I’m interested in the Kef Ls60, I’d like to listen to a pair. 
 

Best-
 


 

 

Your experience mirrors mine. I owned the Kef LS50 wireless, albeit the first gen, and P3Esr at the same time. The little Harbeths are a very special speaker when fed with the right sources. Not surprised the Kef is not measuring up. I ended up selling the Kefs and kept the P3esrs for a long time.