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Trevor Wilson Trevor Wilson is offline
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Default Tweeter replacement for Kef 107


"AZ Nomad" wrote in message
...
On Wed, 28 Feb 2007 10:28:37 +1100, Trevor Wilson
wrote:



"fid" wrote in message
groups.com...
On Feb 19, 9:45 pm, François Yves Le Gal wrote:
On 19 Feb 2007 17:03:29 -0800, "fid" wrote:

The problem is that after so many
years of daily usage I am afraid the they are wearing off.

Properly usedtweetersdon't really wear. OTOH the T33's use Ferrofluid,
which sometimes can harden and become problematic .


I don't know much about speaker's subcomponents and replacements.


**Then forget about replacing tweeters. Just use the OEM parts. You cannot
substitute *any* drivers in a system, without intimate knowledge of the
characteristics of the replacements, the crossover values and you need to
know EXACTLY what you are doing. However, you'll likely ignore this,
because
you've been told this before.


Tweeters typically are sealed and not tuned w/ the cabinet.


**Correct. That is 10% of the story. There are more important issues to be
concerned with. Impedance levels dictate crossover points. The 107 has Zobel
networks on each driver, which are intimately associated with the impedance
characteristics of the driver. Hoping to find a replacement tweeter with an
identical impedance curve is bordering on impossible. That said, someone
with plenty of experience and some decent test equipment COULD do the job.
However, anyone who has to ask questions here, clearly is well out of their
depth. As is anyone who makes nonsensical, glib statements like yours.

As long as the
frequency response of the replacement tweeter is adequate, the main
problem is
matching levels.


**Wrong. That is another 10% of the problem.

Get a replacement tweeter that has the same sensativity and
the replacement will work.


**Work? Certainly. Work well? Not likely. You're talking out of your arse.


--
Trevor Wilson
www.rageaudio.com.au



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