KEF REFERENCE 201/2 Reference - page 24
MODEL 208
With no less than 500W of high efficiency Class D
amplifier powering a 300mm (12in.) long-throw
ultra-low distortion driver in a bass reflex
enclosure, Model 208 floods the listening area with
gloriously extended, immaculately controlled bass.
Output level, phase and the low pass filter
frequency can be adjusted to suit the room and
your personal preferences. With its acoustically
inert hand-finished cabinet, the result is a
formidably accomplished subwoofer that
reproduces low frequency effects with delicacy
and precision as well as sheer power.
THUNDER STRUCK
MODEL 209
Arguably the ultimate home entertainment
subwoofer, Model 209 delivers apocalyptic bass
extension with minimal distortion even at very
high levels.
A lot of air has to be moved to generate bass of
this calibre, which is why the enormous 450mm
(18in.) cone of the new Model 209 drive unit has a
linear excursion of no less than 60mm. This is
only possible by combining KEF’s ingenious double
suspension system and critically designed large roll
surround with a new double radial array of
neodymium magnets powerful enough to create a
constant 80mm long magnetic field.
Crucially, KEF’s innovative ACE (Acoustic
Compliance Enhancement) technology allows
the massive resulting bass extension (-3dB at
15Hz) to be realised without a disproportionately
large enclosure. By filling the cabinet with
activated carbon, ACE almost doubles the effective
cabinet volume.
Powering the Model 209 is a 1000W amplifier
with Digital Signal Processing equalisation facilities
that incorporate six frequency response presets
for both line and LFE inputs. There is also a
unique system for self-adjusting the output to suit
the acoustics of the room using automated
measurements of the listening area via the
microphone supplied. All DSP facilities together
with volume, phase, polarity and crossover
parameters are adjustable by remote control.