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Kef Q650c Center Channel Speaker Review (by Erin)

sweetchaos

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Thanks to @hardisj for another review!
This is the 2.5-way center channel from Kef, which retails for US$750/ea.
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Kef%20Q650c%20Vertical%20Contour%20Plot%20%28Normalized%29.png

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Preference score (as per Erin): 3.5 (or 5.8 /w sub)

Conclusion:
Due to the sheer number of speakers I am testing at this time, all subjective and objective takeaways will be discussed in video form. As stated in the Foreword, this written review is purposely a cliff’s notes version. For details about the performance (objectively and subjectively) please watch the YouTube video.

Discuss!
 

Steve Dallas

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That's too bad. I was hoping this one would prove to be a hidden gem. At least it is correctable, but I generally dislike using correction throughout the entire FR, which this would need.
 

RobL

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I have this as my center. Don’t have a lot to add, plays quite low, dialogue is clear and timbre seems very good to me…sounds fine in any of my seating as well.

Edit: Scratch that, I have the 600C…older version?
 
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Nootmuskaatje

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Disappointing how bright this is out of box. Excellent directivity as usual though, so in theory room EQ(or manual EQ) should bang this into decent shape at least. Definitely a lot worse than the R2C.
Half the price of the R2C and Audyssey fixed it pretty well (psychoacoustic smoothing, with sub). Increased 100-200Hz in app, didn't measure again.
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SpinifexV

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Well... Probably should have gone up to the R2C then. Still, it seems pretty good in use, not a lot to complain about.
 

Nootmuskaatje

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Well... Probably should have gone up to the R2C then. Still, it seems pretty good in use, not a lot to complain about.
Q350: €179,- a piece
Q650C: €449,-

R3: €649,- a piece
R2C: €999,-

Only the front stage will cost 1490,- euro more than going with the Qs. For 35% of the price and some room EQ, you can get a pretty kick ass setup. Not all of us has an extra €1500,- to spend to get rid of a 5dB dip which some room corrections can solve.
 

GabrielPhoto

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Is this really worse than the R2c? I am surprised it was discussed so little
 

GabrielPhoto

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Horizontal directivity is like mtm centers at only 20deg? It is more sensitive than r2c though. R4c would be best but the price...
ouch I didnt notice that. Yeah, my THX 365c is way better. I am almost sure I am keeping the 365c as my center until one day I go with another JBL 590 as center. The last one I was considering trying was the R2C (aside from the SVS Ultra center I am getting tomorrow).
Regards
 

Benedium

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ouch I didnt notice that. Yeah, my THX 365c is way better. I am almost sure I am keeping the 365c as my center until one day I go with another JBL 590 as center. The last one I was considering trying was the R2C (aside from the SVS Ultra center I am getting tomorrow).
Regards
Can you temporarily move one jbl590 to center and use say a spare bookshelf speaker for L/R? Curious about the results :)
 

GabrielPhoto

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Oh I plan to test it out of curiosity too when I receive 4 more this week as I decided to go 6x 590 plus whatever center I end up with for now.
 

Astrozombie

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There's no issues with flipping the tweeter using a JBL as a center? Or do you mean using it vertically?
 

GabrielPhoto

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There's no issues with flipping the tweeter using a JBL as a center? Or do you mean using it vertically?
I will be testing vertically
 

Ata

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I have been using a Q150 as a centre for my KEF LS50M LRs, and can't see why I need a dedicated centre channel, apart from some aesthetics benefit and a bit more SPL. I am using a sub with a 100 Hz xover.
 

akarma

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I have been using a Q150 as a centre for my KEF LS50M LRs, and can't see why I need a dedicated centre channel, apart from some aesthetics benefit and a bit more SPL.

Yes same soughts
 
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