"Trevor Wilson" wrote in message
...

"malcolm" wrote in message
...
hello folk
I am just about to make a pair of these Loud Speakers,
Bailey TL speakers from WW 1972
anybody else out there done the same and how do they sound.
regards malcolm

**Excellent! A few points to note, however:

* The original KEF crossovers are appalling. I used the very excellent
Radford crossovers, in my design.
* You should transmission line load the midrange as well (as suggested by
Bailey), by using a tube all the way through the back of the enclosure.
* The KEF T27 tweeter is well past its use by date. I am certain better
devices can now be sourced.
* You MUST use long haired sheep's wool and be prepared to adjust the
filling for the appropriate tuning.
* Use very solid construction. I found big differences after I built my
set
with 19mm chipboard and then covered it with benchtop laminate. The
laminate
cut resonances dramatically. One of my mates built his from 19mm
chipboard,
then covered the whole lot in another layer of chipboard. The difference
was
not subtle.

When you do, finally build them and I assume you'll carefully tune them,
you'll have one of the few, genuinely 20Hz capable loudspeakers. They are
very good indeed. Pay careful attention to construction details, stuffing,
etc and you will be rewarded handsomely.

BTW: I used to drive mine with a 300 Watt/channel Marantz Model 500 power
amp. They coped quite nicely. The poor old Radford crossovers did not do
so
well. Replacing the horrible bi-polar electros soon sorted that out. If I
had been using KEF crossovers, I would have melted the inductors as well.


--
Trevor Wilson
www.rageaudio.com.au




hello Trevor
thanks for replying and the info.
I most likely will be using 3/4" chipboard, but at our nearest DIY depot
they have MDF and
other interesting wood sheets, Oak and Lauran faced MDFs and similar.
is MDF better or worse than chipboard for LS enclosures?
also I have read on a few websites about people using Miraflex fibreglass
insulation,
this would be easier and cheaper to find here in the USA than long fibre
wool.
I intended to use full range Loudspeakers for the moment.
and maybe scale up the enclosures by 33% all sides, depends how my Wife
reacts
regards malcolm


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