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What did Kef mean by Reference

 
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David
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Joined: 11 Jun 2003
Posts: 90
Location: Canada

PostPosted: Fri Jul 08, 2005 4:25 pm    Post subject: What did Kef mean by Reference Reply with quote

I note that Kef denoted some speakers "Reference". Does anybody have any background on this? When looking at the specs, they seemed to have slightly tighter specs +/- 2db as opposed to +/- 3db. Would this be the only difference or was it marketing?

Thx

David
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ColinR
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Joined: 31 Jul 2004
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Location: Staffordshire

PostPosted: Fri Jul 08, 2005 5:10 pm    Post subject: Reply with quote

KEF Reference loudspeakers 101, 103-2, 105, 105-2, 105-4 etc have been tested under the "Application of Digital Techniques to the Measurement of Loudspeakers" regime, a holistic approach to sub-component and component measurement.

So the individual drivers are matched unlike any other designs, as the Epay pimps would have everyone believe.

Information will be found in the June 1977 JAS paper I've mentioned and a couple of the KEF Topics.

So contact the Canadian equivalent of The British Library to see if they've got any of them.
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David
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PostPosted: Fri Jul 08, 2005 5:31 pm    Post subject: Reply with quote

Thank you Colin.

David
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ColinR
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PostPosted: Fri Jul 08, 2005 10:18 pm    Post subject: Reply with quote

And for those who aren't into literature searches.

Any Reference Series speakers' drive unit not having a computer bar code and a serial number or an additional inspectors mark for KEF and OEM LS3/5a B110a's - aern't matched components.

KEF drivers for Meridian are unusual in that the have sequential serial numbers.

Unmatched drive units will follow a normal Guassian distribution with respect to their target specification.

So speakers within one or two standard deviations will be in KEF production units and B.B.C. specifiers, two for OEM's, three or greater for Constructor Series units.
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clem_o
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Joined: 30 May 2005
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Location: Manila, the Philippines

PostPosted: Sat Jul 09, 2005 4:03 am    Post subject: Also the crossover! Reply with quote

From what I've seen, there's also a much more complex crossover put into the Reference series loudspeakers compared to non-reference types. Just try listening to a KEF Uni-Q driver in a non-reference line (i.e. Q-series) versus the 105/3...
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