SpeakerTalk

[Lee in Montreal]

I have tested SP1076 woofers from a 105/4 on a frequency generator and was happily surprised to see that its Fs is much lower than the B200 SP1188 from a 104/2.

Instead of resonating at Fs35 and dropping quickly, the SP1076 goes flat to... 25Hz and drops very slowly to 20Hz. I was impressed. So, trying to make new cabs with the SP1076s but each one having their own volume, not shared like the 105/4. But I need the T/S for that driver. I believe it was designed in 1980 and only used in the 105/4.

Anybody has the T/S specs?
_________________
Current line up
2 sets basic Kef 104/2
2 sets bi-wire Kef 104/2
Plenty of KEF components for a few fun builds

[Mind_Drive]

So is your plan to make cabs a bit like the ones Willem-57 did? They were slightly larger with seperate chambers for each driver.

It's such a shame that all of his pictures of the development of those have gone.