Nice thread.
I have been out of the loop regarding audio for some time, was hoping to try and get back into it as one of my lads now mirrors the enthusiasm I had at 18.
It is interesting to see the variation in heads, I was never a fan of the old 105's mk1 tweeter simply due to spares availability and it looking old fashioned. But the head I always assumed was better in later models as they had improved materials and measurements to make the 105/2 and 105/4 head better? I though it was similar to using more appropriate materials as B&W did with the 801 to 801F?
The thread tempts me to try and rebuild the pile of parts within the depths of the loft that were once 105/4.
Hope it inspires you to do so as they are worth the effort and underrated,Prefer mine to my Tannoys!
Hope it inspires you to do so as they are worth the effort and underrated,Prefer mine to my Tannoys!
Have both the 105.1 and 105.2 as highlighted the tweeter is the same t52.
The 105.1 initially had individualized crossover boards x3 ,wooden head construction with a metal rear panel.
Revised later versions had a combined tweeter and midbass crossover that sits behind a plastic rear panel,still wooden construction on the head.
Woofer crossover remained in the lower cabinet on both versions..
The 105.2 head is a bit smaller ,same drivers t52/sp1057,has its tilt mechanism built into the head rather than a metal bolt on one previously.
Kef started improving there assembly methods and profit ,so 105.2 has one crossover for all drivers located in the bass section and uses plug connectors to the head construction is machined/molded and a lot more inert..
The 105.2 sounds a bit sweeter to me than the 105.1.
In saying that the 105.1 are recently recapped and perhaps take time to bed in....
B&W like kef moved away from wooden construction, should imagine its was labor intensive..
Also have 801f with the fibercrete head which is completely resonance free..