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E.J. Jordan is a highly regarded British manufacturer of both full-range and
wide-range drivers using metal cone conventional technology. The following
wide-range drivers have been recommended. For more details on their full-range
drivers, see the Jordan listing in
Section 3 on wide/full-range drivers.
- The JX53 tweeter is "only" good
up to around 18 kHz, but extends down to 300 Hz. At first glance,
it appears to be one of only two tweeters whose low Fs and high Xmax make it
truly suitable for a first-order electrical crossover (the other is the
Accuton C2-23) in a two-way system. Upon
closer examination of the specs, you will find that it's primarily of use in
line arrays because of its low sensitivity. Used individually, JX53's require
enough power to play at realistic levels to cause them to burn up in a hurry.
See further information on the JX53 in
Section 3 as well as the similar
Bandor 50 models.
face view
angle view
response
impedance
phase
waterfall
- The JX62 is one of the few
credible mid/tweeters on the market, also available shielded as the
JX62S.For more details, see the
Jordan listing in
Section 3
- The JX92S is an excellent
candidate for an extremely wide-range midrange driver, but is also useful as a
midrange or small mid/bass driver. For more details, see the
Jordan listing in
Section 3
- The JX125 is an exceptional metal
cone 6.5" mid/bass with good response from ~25 Hz in a vented box
(~45 Hz in a sealed box) to 3 kHz. Although it can't quite match the
low distortion figures of the Seas and Seas Excel metal cone 6.5" drivers,
it's easier to work with, due to better FR, and fewer problems in the upper
stopband.
top view
side view
response
phase
waterfall
impedance
- The JX150 is an exceptional metal
cone 8" mid/bass with good response from ~25 Hz in a vented box
(~45 Hz in a sealed box) to 6 kHz. The JX150 is unique among drivers
in using a rear-mounted flat metal spring rather than a conventional spider.
This spring is coupled to the cone via a short rod. The claimed advantage is
that the force of the spring can remain linear through a much larger range of
motion than even the best spiders. Although it can't quite match the low
distortion figures of the Seas and Seas Excel metal cone 8" drivers, it's
easier to work with, due to better FR, and fewer problems in the upper
stopband.
top view
side view
response
phase
waterfall
impedance
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