KEF LS50


Don't post often here but thought I would let you all know I stumbled on a pretty amazing performer in this little monitor.

I would say the midrange is on par with my Harbeth 40.1, treble has a tad more leading edge bite than the best soft dome but its a really good top end that never gets nasty. Dynamically they are performing way better than they should. I'm betting they would compete with the new 30.1 sonically, just a guess.

Have them running with 20X price electronics in a small office and they are not outclassed in any way. Made me want to keep throwing my best gear with them they sounded so good.

If you are in the market grab a pair, you will not regret. Saw two pair this morning for sale for around 1K, I can't think of anything in 20 years offering this much performance for 1K. You could build a world class non-full range sound around these.
petland
Hi Mapman,

I've had the Kef's for about 2 months. For the past 5 or 6 weeks, I've been rotating them in and out of the system with the P3's every 4 or 5 days. Sometimes I'll pop in the little Silverlines into the system for a day just for fun.

You are right in that the LS50's and P3's can sound very similar; sometimes surprisingly so. When I bought the Kef's I had every intention of picking between them and the P3's and selling off the ones I didn't prefer but I have to say, I just can't pick a winner. If I had to say anything definitive in my comparison, I'd say a few things:

The Kef's probably have a wider and deeper soundstage, however, the P3's image specific instruments/voices better.

The Kef's go lower

The P3's probably give a little better resolution at lower levels while the Kef's hold up better as the volume increases.

This is hard to explain, but there is something about the Kefs that make you feel like the coherency between the driver and tweeter is better. Listening to a Piano on the Kefs I realize that with other speakers, I get a feeling like the sound changes as the notes move up and down the keyboard. Sometimes with vocals, I hear the same thing. It's the first thing I noticed with the speakers when I hooked them up for the first time.

However, I do seem to prefer the sound of a violin on the Harbeths. For what it's worth, I played both Violin and Piano for quite a few years when I was younger.

The Kefs seem to interact with the room more and are more finicky in placement than the P3.

In my setup, I think there is a very slight hump in a very narrow band in the upper bass of the P3's. It's very slight, and very narrow. It's not pervasive at all and I don't always notice it when I switch from the Kefs to the P3's.

That's really it. Sometimes I'd say the Harbeths are a little more revealing (but still very sweet) in the highs but then when I listen to the Kefs again; well, then I'm not so sure; same thing with the perceived "speed".

For reference purposes, I've got a very modest system and room. Room is 11x12.5 (treated) and components are just a Musical Fidelity M3i integrated, Oppo 95 and Music Hall TT. Speakers are out from side and back walls and listening chair is too. My ears are just over 6 feet away from the tweeters. Some might call the setup quasi near field.

Music is everything except for rap, classic rock and heavy metal. I'm (obviously) not a bass freak and even though my speakers don't go low, I'm picky about the quality about what is there. Often, the bass on ported designs in my small room bug me, but not with this Kef. The Harbeths are sealed.

I suspect, but have no proof that if I had a larger room, the Kefs would start to assert themselves more, but that is just a guess and I could be completely wrong. I'd love to hear both in different rooms and settings though to learn more about their traits. I often think that my room is the worst performer in my system and do have plans for more treatment.

Again, I wish I could pick a winner and I keep listening, hoping for a breakthrough, but at this point, it might be a complete toss up. Again, maybe in a different room, things might change.

Going by looks, for me it'd be the Kefs by a mile. I love how the rose colored drivers catch the light and my attention when I walk by the listening room; as if to say..."hey, come on in and listen." I know many love the Harbeth look but umm, well....I guess their cosmetics just aren't my style. Unfortunately, it's not about the looks, but the sound and that's why I haven't been able to choose.

And now to throw another variable into the mix, I've got a low powered tube amp and high efficiency single driver speaker on order. It'll be fun to compare these new components to what I've got now. :-)
Seik,

Thanks for all that. Very informative!

"This is hard to explain, but there is something about the Kefs that make you feel like the coherency between the driver and tweeter is better."

I'd be willing to bet the concentric/point source driver configuration has a lot to do with this, especially near field in a smaller room.

THe low powered tube amp should be interesting. Neither KEF or Harbeth would seem to be inherently tube amp friendly on paper, but you never know. I suspect HArbeths will do better with the tube amp in that small speakers that do more bass seldom if ever do better with low power tube amps, but for certain kinds of music like those you indicate to be your interests, it may work out just fine.

Thanks again and good luck!
Hi Mapman,

Unfortunately, I won't be able to run the Kefs or the Harbeths with the new tube amp. It's a Decware model of only 4 watts and while it will drive the high efficiency Omega speakers I'll be using with it just fine, there is no way it could handle either of the other two speakers.
Like the discussion. I'll give my first impressions.

My early conclusions are: 1) don't put them in a bookshelf. Tried that for a bit and it really killed the spatiality. That was about 11 feet away. Moving them to about 7 feet away, and at least 1 foot away from the wall helped a lot. I think part of it all is that you do want these speakers a bit closer to you.

Conclusion 2) I'm crossing over at 70Hz. I know some people would do 60 or 80. I had better luck at 70. If I did 80 (I think) there seemed to be a hole. This could well be my electronics and sub. Tried 70 and 90 for a while and ended up liking 70Hz the best.

I think they do need a sub. So sub selection is going to be huge for people who want that. I'll add a last obvious statement/conclusion.

Conclusion 3) Yes, you need some power. I had these on a 70wpc and that seemed like trouble. They are on my 200wpc now, and that seems about right.

General comments: As others have said, these aren't a 3-way--they're a mini monitor. So they do have their limitations. But when they aren't overloaded, they do sing. You don't get that "slam" you would get with a big floor stander. Tested with: Yellowjackets, Jimmy Haslip, Mike Stern, Journey (1st album), Black Crowes, etc. I'd say the Black Crowes is where they had the most trouble keeping up. I'll do a followup review later.
Hi - I was thinking of buying these speakers to serve as my main speakers for listening to music.

Currently, I have the KEF KHT 3500SE set, including the sufwoofer that comes with it. Any thoughts on:

1) Would these speakers be an improvement over the 3500SE?

2) Can I use the KEF sub that came with my system (HTB2SE) with the LS50? Not sure if it's even needed or not.

3) Am I better off just buying floorstanding speakers? I have a $1500 budget.

Thanks so much!