"Don Pearce" wrote in message
...
On Thu, 18 Jan 2007 16:06:14 -0000, "Keith G"
wrote:


Now, am I just hitting lucky so far or can you really *not* just chuck
anything about the same size in? Also, I am suspecting tweeter differences
of the same type and size are almost neglible...??

OK, we'll see - not so easy now, it's getting a bit
*gynaecological*......!!
:-)

Mora non....



When you have drivers of the same size and general type, you've got a
fighting chance that their resonances will fall at somewhere near the
same frequency, and that is what matters. The tolerance of frequency
between two drivers that are nominally the same is pretty wide anyway.



OK, that's the gamble I took, but the first pair are still on and really do
sound good - I might grab a snatch off 'em and post it later....



I don't know the difference between the T27s and the Vifas, but the
important thing with tweeters is not to give them stuff that is lower
than they can cope with - that is the road to early death. I think you
should be pretty safe with the T27s though.



Right, hint of 'non-peachyness' creeping in to the equation - scrute these
pix:

http://www.apah69.dsl.pipex.com/show/tweeterpic01.JPG

http://www.apah69.dsl.pipex.com/show/tweeterpic02.JPG

http://www.apah69.dsl.pipex.com/show/tweeterpic03.JPG

and you will see:

1) Sawdust everywhere 'cos one of the Seas drivers dropped in to the other
speakers reet lovely and the other one rocked a bit and had to be 'let in' a
tad!

2) The Vifa woofer looking smug - back *home*...

3) That the Vifa tweeter is only 6 oms...!!??

Now, is '3' going to represent a big problem crossoverwise? - I'm intending
to use the original Ruark crossover and the T27 is 8 ohms, as you can
see/already knew....

My money's on them sounding OK, but I don't know what to expect from the
T27's higher rating - 'vanishingly' less treble? A small but devastating
explosion? Loss of libido....?? Dry skin...??

Incidentally, when I fried the tweeter I contacted Ruark and some old dear
told me I got *no chance* of a replacement - old model and all the bloody
drivers (Focal, Dynaudio, Vifa in various models, to my knowledge) are
non-standard, 'Ruark tweaked' apparently!! I asked about using a 'near miss'
tweeter and got a *telephone shrug*...!! :-)