"Full-Range" KEF LS50 META with the KEF KC62 Subwoofer
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- เผยแพร่เมื่อ 19 ก.พ. 2021
- This is the KEF KC62 subwoofer review. KEF LS50 speakers have gained massive recognition. Now the KEF ls50 META... But now imagine a full-range version of the KEF LS50 with massive bass capabilities. I introduce you... the ls50 subwoofer - KEF KC62 subwoofer.
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KEF KC62: www.shop.ca.kef.com/speaker/s...
Kef LS50 Meta: us.kef.com/ls50-meta.html
Kef LS50: amzn.to/37aaAhk
Inexpensive but very good speaker stands: amzn.to/2TwmCdc
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One thing to note: I did not have the subwoofer placed like in the video. I had them in the left corner. Obviously this was hard to film so we brought it out for filming purposes.
kef ls50 meta review: th-cam.com/video/hXKY8vFdqUs/w-d-xo.html
This video is not sponsored
for more info on how we work:
nbtsmedia.com/about-us/
KEF KC62: www.shop.ca.kef.com/speaker/stereo-speakers/subwoofers/kc62-subwoofer.html
Kef LS50 Meta: us.kef.com/ls50-meta.html
Kef LS50: amzn.to/37aaAhk
Inexpensive but very good speaker stands: amzn.to/2TwmCdc
I was triggered when I saw the tube amp right next to it 😂
Earbuds for Kef M400 250 euros for a pair of earbuds in replacement, for headphone bought new 50 euros (original price of the headphone 250 euros, or the price of this spare part), while the leatherette is very thin and quickly detaches itself? I expected about ten euros, which I usually put in the competing models. 25 euros would have seemed very expensive, too expensive considering the poor quality, but 250 euros (240 Pounds) is unfortunately not a joke, but an incredible bullshit and a deliberate merchant choice that corresponds to wear and tear. I have always been faithful to the Kef brand for 40 years, but I understand that we are actually taken for pigeons, frankly it is like urinating on us. Fortunately Kef is not a car manufacturer, he would sell the 4 tires at the same price as the new car! Also, we notice that the construction of these earpieces does not correspond to what they seem to be, that is to say a natural rubber of good thickness to withstand time. In short, a good sound quality, but of the whole issue manufacturing, and a sales policy that is obvious robbery.
@@dugenounonplie8162 And your point is ? I thought we were talking subs here 😉
@@jimfarrell4635 My point is that KEF was a fantastic compagny, but is not still today ! A big shame !
@@dugenounonplie8162 Fair enough, Dugenou. It just seemed a bit of an abrupt shift in topic. I do feel Kef remain highly innovative but some of their pricing can indeed be off-putting.
Thanks for the summary type review. Your description conveys all the info needed. I appreciate the use of both KEF and Magnepan speakers paired with the KC62 sub. The pro/con of the wired connections takes the surprise factor out of the picture.
I just got the Metas. Love your reviews. They are always helpful and unbiased. Thanks!
Wow, that sounds like a great product! Glad to hear it wasn't just outlandish specs put on paper. Thanks for the review!
Really happy I found this channel great great review dude
Top review Jay - loving the backdrop and professional production quality, you really are taking it to the next level man!
His listening room looks heavenly!
Nicely planned out isn’t it - inspired me to redo mine!
Excellent review!!! Such a small sub. Love it!!! Kef is next level for sure. 👍
Thanks for the review, I might have to give them a try.
Got the old ls50 with a rel t7 also very nice setup sound incredible
Exactly as mine fed with marantz integrated amp & CD a very well match set up
what you are "feeling" is the low bass. Measure this beast, if you get a chance and have time! ! Thanks for the review/presentation.
I really appreciate your honesty! Please stay as independent as you are. That makes the worth of a review!
Great review, now I have to buy it.
Hey thanks for testing it with the maggies.
After looking at REL and SVS it looks like I just found the sub for the Ls50 Meta I ordered yesterday. Many thanks.
REL also blends great with most speakers
Great informative video! Subscribed!
Beautiful room and setup. This could be the setup to live with.
Have just got the mets and now getting this Subwoofer will it be Fantastic 🎵👍💚
Hey Jay, Great review! Like your new decor and sonic room treatments - Can you do a video about what you did and the products you purchased?
Mine arrived today. Using it with a pair of Kef LS50 Meta's and a NAD M10 in a nearfield setup. The sub woofer it's replacing felt and sounded like a sub whereas the KC62 sounds more like my meta's just got WAY larger and more powerful. They pair incredibly well, I'm crossing them over at 80Hz.
What's the best crossover + volume setting when paired with Metas? I'm driving them with a Hegel H190
Curious are you high passing the Meta with KC62 as well ? The Kc62 are one of few subwoofers that gives you RCA high pass.
I have the LS50WII + KC62 combo and it is truly fantastic. Awesome for both music and home theater. Perfect marriage.
I bet.
one or stereo subs?
@@ISETbioDev.Cottaris one. I have the LPF set to 45 Hz on the KEF app which is about the -3 db point for the speakers. Integration was super easy. As Jay mentioned the bass is very fast and accurate and incredibly deep.
Yeah, I have the LS 50 Wireless ii as well with two REL T5I's, and the KEF app definitely makes integration a breeze and there are more features coming. The EQ settings make this a very tunable system. The other parts of the app in regards to the streaming services needs more work.
@@LuxAudio389 agree. The phase correction is also pretty cool.
Great video keep it up 🔥
I love those speakers and if I had the coin would definitely get a pair.
Would love to see a review of the sub with the LS50W2.
Thank you for this review....might be time to replace my B+W subs!
Enjoyed your review, Jay. The KC62 looks great, and I love the size. Reminds me of the Sunfire subwoofer from about 20 years ago.......similar compact size with 1200 watts, 6.5" woofer, and two radiators on the sides. Those sounded great too, blended well with any bookshelf speaker.
Ding ding. My Sunfire True Sub is still chugging along (after a plate amp replacement) with my Mirage HDT's, but the KC62 will definitely be on my short list when it's time for a replacement.
You can get that sub for $99 now! Times have changed.
What a great looking mini sub the likes of which hasn't been seen since sunfire and velodyne's offerings. I agree, it looks like you're overdriving that sub with the extreme excursions of the woofer. How loud was the KC62 playing when we see those drivers wildly fluctuating?
I think a good trick would be to make stands for the ls50 to take up even less space if you want. I just bought 2 jbl 550p to set my jbl 580 on. Takes up only the space of the subs.
Looks wonderful in white. Sounds great too. I am an LS50 / KEF fan for sure. My only concern, as with any powered speakers, is their longevity. without issues. At its price, it needs to be problem free for 20+ years IMO. Many techs will not work on actives...heat problems, difficulty of getting parts long term, etc.
In that case stay away from the Active version and stick to the passive Meta.
I certainly did. I bought passive.
Nice review
So, instead of upgrading my original LS-50s to the Metas right now, I believe that I will put that money towards this subwoofer first!
Thanks Jay! Great content, as always.
Totally agree with you.
I am sure you'll get more benefit adding the KC62 than changing to the Meta.
I think any well integrated subwoofer is an upgrade to the LS50's. However this new line of kef subs seems to expand on the previous generation products. Pretty cool!
Seems like a smart move to me. Give the meta some time to work out it's bugs.
Hi Cory, I was wondering what your opinion is on the LS50s? I have had quite a few speakers to date and find it hard to believe that a speaker this small can reproduce a full range quality sound. Would love to hear your opinion.
@@grahmpike9032 They don't have much bass. They spec at 79Hz-28kHz, +/-3dB, with a -6dB point of 49Hz. They will measure in the mid 40Hz range in some rooms. IMO, a well integrated sub is a must for some if lower bass and impact is desired.
Thanks for the review, it would have been nice if you test it with an SPL meter to see how low it go.
Great review ! Do you think this combination works better / is equivalent than high end tower speakers (such as Dynaudio)?
Most important thing: How does it make the main speakers (LS50, for example) sound? Ideally, it should transform a speaker like the LS50 into the best of all possible worlds -- the advantages of a good small speaker with the bass and scale of a big one.
It does!!
@@mikhailyadav Do you have the LS50 Meta with a subwoofer ? If so how are you integrating the sub ? Thanks
@@kevtn8 I have the same question, did you receive a response? I like the idea of speaker inout but without speaker output to the mains I guess we’d need to run another 2-ch amp , or use the rca in and outs ??
I hope you're able to review the KEF KF92 one day.
Is that a Denadrips preamp and amp combo I see behind you ? Review coming up soon ? :)
Im curious if this tech will be used in a larger variant to replace the KF92. Do they chuf for a closed? I thought chuffing was only for open or ported designs. I would imagine that there is breakup due to diaphragm or suspension not being rigid enough for so much pressure in a tiny body.
How does it compare to the svs sub that you reviewed recently? I don't think you mentioned it in the video
Hi, great review. Do you plan to test the KC62 with the R3s? Also, did you highpass the LS50s ? And if you did, did you use the highpass output of the KC62?
I was prepared to ask the same question. The sub has speaker level IN but no speaker level OUT that I could see. So, bass management somewhere in the mix? His praise for the sound of the bookshelves suggests, "Yes".
I guess it’s like with Rel - speakers go full range, sub’s added from below. Works fine for me btw.
@@oleksiifilippov68 if the ls50 mid-range driver goes full range, them there is no benefit (to the ls50) from the sub . it would be better if there was offloading of low frequency stuff to the sub, so that the midrange driver can do a better job of transducing the mid frequency signal.
@@ISETbioDev.Cottaris oh, there’s a benefit. I run a sub just like that. More depth to the sound, fuller warmer midrange...
@@ISETbioDev.Cottaris You can do this if using LS50WII (through the app) or if using separate pre/power - wire up pre->KC62->power - the line output maintains stereo, and has a high pass filter that can be applied (the DIP switches on the rear)
I have the LS50 Metas. I couldn't get the KC62s so settled for discounted Kf92a which are similar but bigger. I love the sound but my only disappointment is he doesnt explain his use of the speaker inputs and why he doesn't use the simpler other inputs . I am using LFE with the bluesound app which allows me to adjust everything. Am I missing out on something and not optimised?
Great review! If you have heard the Sonus Faber Sonetto IIs? If so, how do you feel they compare?
I understand it's faster than REL HT1003 (due to the smaller woofer), but what about bass quality? Does KEF surpass REL HT or are they on the same par?
Hello Jay, I have the LRS and nothing else. I am trying to duplicate your setup. In this video, other than the KC62, what were the other components. I think i can see Denafrips Hestia and Hyperion in this video, were these two in you listening to sound so good? What were your source components and any other components involved? Thanks in advance.
Hi Jay, what do you think about the idea of adding kef kc62 to the center speaker of ht setup in order to transform the center speaker into a full range? Just like what rels are doing with the rel 3d, since kc62 is very compact this would be a great alternative if possible. Thanks
If i ever decide to get ls50meta im getting that sub!
Hi Jays! thanks for your review. Its very helpful. I have a one question, for a small-medium room you recommend a one K62 or two Rel (T5x or T7x) ?
The stand out performance specification of 11 Hz is impressive, but this will only be possible at low levels. At higher levels, where you can actually feel the bass, there will be a limiter, so the question is at what point the limiter is active. I would prefer less extended low frequency on a sub like this, and only let the limiter affect the sound at high levels.
Small in size, ability to play deep, ability to play loud. One only gets to pick two of these. Cannot have all three.
Thank you for your videos. As a Bahamian we have to travel to Florida or NYC to demo gear. Can the LS50 Metas push sound 15/20 feet away in a home theater? I know they’re near-field monitors.
this is exactly what I was thinking of doing today actually... LS50 Wireless with a pair of KC62s configured as a full-range 2.0 system. Clearly I'm not the first...
QUESTION: HI, I like your channel 😊 how did you connect the Kef kc62 sub to your willsenton tube Amp??
Thank you
Gabriel
Try the Grimes track 'So Heavy I Fell Through The Earth' for bass 😁
Nice review. I need some advice. I have a pair of KC62. How should I connected to Martin logan ESL speakers for 2 channel listening? Using high level pass, should I set these sub as stereo ( one sub connected to left speaker and the other sub to right speaker) or should I set these 2 sub as mono? Location of the sub will be exaclty next to each speakers. Thank you.
Hi...do you hav a video where you talk more about this preferred wiring method? I am not sure that I understand why you prefer this over the normal sub/signal output from an amp. Thanks.
What's the best crossover + volume setting when paired with Metas? I'm driving them with a Hegel H190
Bought a REL HT 1003 cause of your reviews. How does this compare? Looking for something small to put in another room.
Kef, why was the driver painted silver? would have wanted it in the same copper color as my wireless 2.
Curious how this would compare to the Kali IN-5 and their woofer for $1300 total.
I think the KEFs might have the better drivers, but the three way might take enough load off each to compensate for that.
Subwoofer wise, I think the KEF might take the lead all around, but maybe not against two WS subwoofers.
Would 2 of these be better than my 2 svs sb1000’s ? I have kef q550 front speakers and kef q250 Center speaker so would love to have everything match but price difference is quite a lot, which sound the best for home movies ? Cheers
How are the LS50's less hard to drive with the sub present? You're still sending a full-range signal into them unless you pass them through the sub and out with a high pass filter
Hello my friend! I remembered that some time ago you reviewed the REL T5i sub. What is your thoughts against the KEF sub?
I love my REL T5i but this looks like it takes things to the next level, and looks so cool at the same time. Think it might be upgrade time!
I briefly mention in the review that I preferred the kef kc62 than 2 rel t5i.
It’s to bad that the two woofers cans be configured independently to be out in dipole mode (synced) to better integrate with the Magnepans. Face one forward and the other back, yes? Also, If it wasn’t for the sealed nature and shared cabinet, one could place the woofer between a pair of speakers and get a stereo effect from one unit. That would be interesting
@@Jayiyagi, thanks a lot Jay. Take care!
What about KC62 vs REL s/510? For music? For movies? Im using medium sized floor standing speakers
What do you think would be better for Ls50 wireless 2. The KC62 or Rel T9i?
Great review so much explanation
What will be max room size it will handle without going down.
I was considering 2 Rel T5"s or 1 T7 for music purpose with LS 50 your review changed my mind.
Please let me know Rel T5/T7 or this Kef sub is better for LS 50.
Thnx
This is my EXACT dilemma right now. Just got the wireless 2s and and very torn between these 3 options to pair them with.
Got the ls50 with rel t7 is sound very good
Hi Jay! Love the channel. I know this is from several years ago, but if you (or anyone in the comments) could share thoughts on the LS50 Meta/sub combo versus R3 Meta with no sub for 2 channel listening only that would be great. Take care and thanks for all the great content!
Interesting Video, but I would have loved to see some measurements. Would be nice to find out how low it actually goes...
Yes you need Hz spectral analysis , balance of it , obviously this may be tweakable away from the default or stock
Jay, what is your room size? I feel it's important to include the room info in sub reviews. Not sure if this would work in my room which is 22m^2 (245ft^2). What do you think?
How does the sub filter the crossover? When you used speaker wires as input, does it convert to digital, then filter with DSP, and convert back again? Or is it an analog filter?
Are you able to control EQ modes through the app? Also can the kef do high passs filtering from the app with an other brand of speakers or not? Its not clear
I'm new to hifi and bit confused about the ls50's sounding better after adding the kc62. You mentioned that the ls50's are less stressed as they don't have to produce the low frequencies. But the cross over setting on the sub impact it's own capabilities and cannot impact the ls50's. They will still try to produce all the frequencies unless there's a cross over in the chain. Would really help if you can elaborate, thanks.
I'm pretty new to this too congrats on getting into it. I think what he was trying to say is that the ls50s may go down to a certain frequency but they may not play those notes well. The bass may be muddy or just not as good as floorstanding speaker. A more than capable subwoofer would help fill in those gaps where a bookshelf speaker may not excel. Hope this helps.
There is a saying: "You don't know what you're missing until you've heard what you're missing."
In this case, adding the lower frequencies with a quality sub to a pair of quality speakers has a knock-on effect that reinforces and improves the frequency response throughout the entire frequency range.
If you have not heard this phenomenon in person, it's difficult to imagine. Thus, the quote above. As soon as you hear it, you understand instantly.
Well, perhaps not technically, but you know what you're hearing. : )
What he was referring to was passing the speaker signal through the sub where a high pass version of the signal is then available on another pair of the sub terminals, which is less demanding (due to the lack of bass signal), for what ever speakers are then connected.
In other words the sub splits the mid/high and low signals, and you connect your main speakers to the mid/high output (via a power amp).
Hope that helps!
So, what gauge wire did you end up using for your speaker-level connections ? Thanks. 16?
I have the KEF LS50W and am looking for a subwoofer. Which do you recommend? I'm considdering these KEf KC62, KEF KF92, Rel T7i, Rel T9i, SVS SB 3000, or SVS SB 2000 Pro. I don't really care about home theater, only about music. I don' have a lot of placement options, that's why this small KC62 sounds appealing. But how does it compare to the bigger ones, like the SVS or the REL. (I just now also watched your review on the SB 3000 and wonder what your opinion is on this).
My room size is about 5x8 meters by the way.
If I may and if you haven't already purchased, I'm playing Tannoy Cheviots in a medium room with lots of good quality A/B watts. You simply cannot beat REL T/7i hooked via the HL Speakon connection. I have one and it exploded my soundstage and dynamics, which was already really good. Just astonishing. I want to improve my 2-ch music, I don't want to feel that chest-thumping electronica bass the kids like. The RELs do this the best. The KC62 is smaller, easier to position and also should be hooked using speaker-level connection (with 16-gauge wire). Properly tuned and placed, the KC62s are 80% of the sound quality of the RELs. The KC62 cost quite a bit more expensive than the RELs. With the KC62, you are paying for the "cool" factor, smaller size, and maybe a little more placement flexibility. Both are really good.
Do you think do to space restrains it would be possible to mount the sub under the kef ls50 wireless? Just like in the pic
Have you tried the kef kf92? how do they compare?
Did u hear any difference between line level input vs LFE input? Thanks!
How they speakers did not have to produce the low frequencies and played louder?
Did you you high pass filter?
At $4K for the set it isn't cheap. I've got the LS50's and I'm wondering if it would be worth it. Nice review!
I would imagine you could do better and cheaper than 4k plus HST.
Love the name! Greetings from eastern Canada.
Does the subwoofer limit the bass frequencies going to the main speakers? How do you connect the subwoofer to the audio system? I remember reading about the LS50's driver specs and the Fs is quite high at 79hz, that tells us that it struggles reproducing bass. Take away the mechanical stress and it should really take the Kefs to another level.
You can do that if you are using separates and place the KC62 in the signal path between them - KC62's line output has a selectable high pass filter
Two rel t9is or two of the kc62? Which is better? Rel doesn't go as low on paper but I need to know which of these would be the preferred option. Paired with ls50w first iteration.
How do you think they would be for theater room listening, do the have enough low end to rock a 13x20 room, using 2 of the KC62 sub woofers?
What is the name of the instrumental music that you used in your introduction, please?
How does it compare to a REL s/510 or REL T9i, for a music listener?
I was considering this combo with a Naim Unity Atom but the addition of the sub gets you into a whole new category of speakers. From that standpoint the Bowers and Wilkins Formation Duo suddenly came into focus. I would love to hear your take on the Duo.
A comparison to a Rythmik F12 would be very welcome.
One of the less obvious benefits of the shared magnet structure, is there are big efficiency gains, and reduced magnetic induction distortion. The concentric voice coils actually cancel some of the magnetic challenges that all subwoofers face. Here is a white paper from KEF on the KC62: @t
Hello! i need some assistance..as I am a complete noob when it comes to subwoofers. Im about to have delivered a KEF KC62 Sub which i will connect to my Lyngdorf TDAI-1120 amp. For that i need to know the DSP Delay which i must input into the amps setup prior too running the roomperfect setup..but i can't find this information anywhere...not even in the KEF KC62 User Manual.
any help or tips would be GREATLY appreciated
Hi Jay, Can you please do a review of the Willsenton R-800i 300B 845 Tube Single-Ended Class A Integrated & Power Amplifier Balanced XLR Input and compare it to amps similar in type and or price? Thanks!
sub look very nice and you said it go very well with Megnepan
Now I am thinking to put a pair of subwoofer for my 3.7i
my list of interest sub is
JL f110
REL T/7i
and add KEF KC62 on my list now
so which sub you think it should be best matching with my Megnepan 3.7i
thank you
Looks like a good idea to put 1 each behind speaker since it is small.
Great videos!
Would you prefer this Kef setup (KC62 and LS50 Meta ii/LS50 wireless ii) OR an A500 Buchardt with hub?
I am asking myself the same question. Problem is the a500 is set to deliver only in August for new orders while the ls50w2 and kc62 are available now
@@eugeneong2241 I ended up getting the LS50wii with the kc62 combo and I'm super happy with the purchase. The app is a lotttttt better than the old one.
The combination of the KEF Meta and one KEF subwoofer will set you back £2400 in the that amount of money I can buy a really good pair of full range floor standers with none of the negatives I hear in the KEF Meta's and have change. My existing Castle Howard S2 speakers provide more than adequate bass for home theatre so would expect to achieve the same with the Quadral CHROMIUM 8 s. Stay well. Daniel
Just got a ZA3 amp/KEF q150 and SVS Micro 3000 .. Incredible sounding system. I actually wish I had the Metas, NGL . But I don't know much of a difference it'd make over the q150s. Never heard em in person.
What did you use for the high pass around 80?
Reviewers always seem to use plodding bass heavy tracks to demo subs. To me the true test of subwoofer integration should be with music that has good pace, rhythm & timing (PRaT). If it can keep up and NOT draw attention to itself then I'm interested.
I agree. But regarding not drawing attention to itself that should be able to be done with gain level, crossover point, and phase. Also room placement.
there's a number of well engineered organ recordings out there (Telarc, Reference Recordings, Wilson Audio etc.) that are great for that.
Sitting here trying to decide whether to keep my Buchardt A500 order or get Kef Wireless II's w/KC62 Sub. I'm sure I'll be happy regardless.
Hi Jay, thanks for the video, im seriously considering to get 2 kc62’s to match a pair of Meta’s as stereo pair, what is the best way to connect them? Speaker connection amp to Meta’s, then preouts from amp to kc62’s? Thanks
@Glenn Young what gear would i need to implement as you described? i have ls50 meta and want to get kc62 to offload lower frequencies and maximize ls50 meta performance. right now i have a dac and a pair of purifi amp monoblocks hooked up using XLR cables. i'm not set on this configuration, so just wondering what i'd need to get to implement as you mentioned. do i get a separate upstream electronic crossover device?
Considering the price of the sub and the LS50, are they worth that combined investment? And what is the background checkerboard sound treatment you have please. Thank you.
Please check the video description for acoustic panel link.
Do those tubes like the massage near the sub? :)
Wonder how this Kef LS50 + KC62 compares to the Kef R3/R5
How does it compare against the REL T5i , would you buy 1 KEF or two T5i’s for the same price ?
What was the name of that track you use in the beginning of the video
I have the kc62 sub and kef lsx II and turned the volume up 60 percent and bass at 10 all the way. Played a song with lot of bass. Will anything get damaged? Or did it damage?
Would you recommend this over the jl 110