KEF Q400B Subwoofer £299 @ Superfi
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KEF Q400B Subwoofer £299 @ Superfi

10
Found 5th Mar 2017
Best part of £500 everywhere else. For £300, I don't think you can pick up a better sub.
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Hope it doesn't suffer from the same issues as the Kube 2, 2000, 2010 and C4. I had the C4 and mine suddenly kept blowing the fuse. Apparently the issue is down to when it goes into standby it doesn't shut off power to the amplifier circuits. You assume that the subwoofer has shutdown to all but minimal output by this point, apparently not so. End up overheating the amp and you're left with a dead sub at the end.

Advice to anybody purchasing this is to always turn it off fully when not in use, unless Kef have sorted out this big oversight. Personally, I replaced mine with a Rel as it looks a less risky choice over the Kef models.
I have a full set of KEF Q's that are great, And a PSW2000 that I had to dump cos of one of a few known issues, Love the speakers, But wouldn't touch a subwoofer again, And you can get better for 300 quid, Or a smidgen over, It's BK
Edited by: "babylon" 5th Mar 2017
babylon

I have a full set of KEF Q's that are great, And a PSW2000 that I had to … I have a full set of KEF Q's that are great, And a PSW2000 that I had to dump cos of one of a few known issues, Love the speakers, But wouldn't touch a subwoofer again, And you can get better for 300 quid, Or a smidgen over, It's BK



​Mmmmmm my Monolith
youngrobbo

Hope it doesn't suffer from the same issues as the Kube 2, 2000, 2010 and … Hope it doesn't suffer from the same issues as the Kube 2, 2000, 2010 and C4. I had the C4 and mine suddenly kept blowing the fuse. Apparently the issue is down to when it goes into standby it doesn't shut off power to the amplifier circuits. You assume that the subwoofer has shutdown to all but minimal output by this point, apparently not so. End up overheating the amp and you're left with a dead sub at the end.Advice to anybody purchasing this is to always turn it off fully when not in use, unless Kef have sorted out this big oversight. Personally, I replaced mine with a Rel as it looks a less risky choice over the Kef models.



I had a kube 2 for years and never had an issue.
babylon

I have a full set of KEF Q's that are great, And a PSW2000 that I had to … I have a full set of KEF Q's that are great, And a PSW2000 that I had to dump cos of one of a few known issues, Love the speakers, But wouldn't touch a subwoofer again, And you can get better for 300 quid, Or a smidgen over, It's BK



Still got a PSW2000 attached to my PC. Had to get the plate amp fixed as it went bye-bye but some kind chap off AVF repaired it. Whilst it was off for repair bought a REL, dog doesn't like it.
babylon

I have a full set of KEF Q's that are great, And a PSW2000 that I had to … I have a full set of KEF Q's that are great, And a PSW2000 that I had to dump cos of one of a few known issues, Love the speakers, But wouldn't touch a subwoofer again, And you can get better for 300 quid, Or a smidgen over, It's BK


Thank you for showing me BK products, hadn't heard of them until now. They really look outstanding for the money!
Im another bk holder, impressed with their stuff but can't comment on the kef.
XXLS400-DF here; love it!
-BA-

XXLS400-DF here; love it!


Or monolith :-)
Mine on its way
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