Datasheet
• Particular attention has been given to three-dimensional sound reproduction, as is the case
with the "Classic FS 247 model", with the
result that the room is evenly filled with
sound. The design of the woofers is based
on the renowned ELAC aluminium sandwich
technology. The eye is drawn to the crystal-
like surface of the aluminium cone. Break-up
vibrations are significantly reduced, due to
the new non-discontinuous surface
structure. In addition, the diaphragm is even
more rigid, with less distortion, which not
only reduces break-up vibrations in the
frequency range, but also results in
improved harmonic distortion characteristics.
The very high degree of rigidity of the
aluminium cone makes it possible to
connect the voice coil directly to the
aluminium cone, in addition to the paper
cone neck. This significantly extends the
frequency range. Reproduction is much more natural in the vocal range in particular, due to the
extended broadband response.
•
For the high frequencies, ELAC has employed its world renowned JET tweeter, long a favourite of
reviewers and listeners alike. The tweeter's
internal design has been reworked to yield an
even more linear response and an improvement
in harmonic distortion characteristics.
•
The "JET-DC" acoustic tuning element,
enclosed as an accessory and made of open-
pored foam, quickly & easily adapts the high
frequency output to help tame highly reverberant
spaces.
• Each FS 247 Sapphire Edition features two
different bass reflex tubes. One outputs to the
rear, the other
downwards onto the
base plate. The base
plate acts as an extension and acoustic low-pass filter for the down firing
tube opening.
•
Optimum rear bass tuning has been achieved by sealing the bass reflex
tube with the supplied bass control plug. Bass reproduction can be
intensified by removing it.
Finishes: Sapphire Black
Specifications ELAC FS 247
Dimensions
Height (with/without base plate/spikes)
Width (without/with base plate)
Depth (without/with frame/base plate)
935/993/1021
170/220
270/285/320 mm
Crossover frequency
450/2,500 Hz
Weight
17 kg
Nominal power handling 120 W
Type
2½ -way, bass reflex
Peak power handling
160 W
Woofer
2 x 150 mm AS-XR cone
Frequency range (IEC
268,5)
30 - 50000 Hz
Mid-range speaker
Sensitivity
89 dB/2.8V/m
Tweeter
JET III
Nominal impedance
4 Ohm
Rec. amplifier power at given
nominal impedance
30 – 250 W / channel
Minimum impedance
3.4 Ohm at 210 Hz