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Old 20th January 2013, 02:09 PM   #1
diyAudio Member
Join Date: Oct 2009
Default kef 105.4

Hi all,anyone use these speakers?what power amp are you using?
I'm using crimson 40 watt amps ok at low ish volume,but sound a bit strained when wound up a bit.
Kit amps?
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Old 20th January 2013, 05:01 PM   #2
AMV8 is offline AMV8  United Kingdom
diyAudio Member
Join Date: Jan 2005
Location: near london
I used the Kef 105.2 for many years (and I still own them although they are not in use at present).
The Kef speakers will work with 100w or 200w amplifiers with no effort. The speakers can produce good bass but it needs a powerful amplifier to do that.
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Old 20th January 2013, 06:02 PM   #3
diyAudio Member
Join Date: Oct 2009
Thanks Don,i tried them with "naim amps"the sound was a bit clearer,a 50watt "beard"valve amp was the best[much more dynamic] all this was 30years ago!!
so what make?
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Old 20th January 2013, 06:49 PM   #4
sreten is offline sreten  United Kingdom
diyAudio Member
Join Date: Nov 2003
Location: Brighton UK

Bi-amp. Get a cheap "studio" 100W power amplifier for the bass, and
use the Crimsons for the mid treble, reducing the input capacitor on
the Crimsons for say -3dB @ 100Hz so they don't clip due to bass.

rgds, sreten.
There is nothing more practical than a really good theory - Ludwig Boltzmann
When your only tool is a hammer, every problem looks like a nail - Abraham Maslow
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Old 20th January 2013, 08:17 PM   #5
diyAudio Member
Join Date: Oct 2009
Thanks Sreten,but i'd have to get a circuit diagram of the kefs so i could work around the "s.stop" system.
anyone got one?
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