The SSU-4000
Both these
speakers are 3-way bass reflex systems that encompass vurtually every
technological advance currently available to speaker design. While their design
is very conventional, the devotion to detail is immediately apparent in the
flawless way in which they effortlessly handle the entire frequency range.
Carbocon
The woofer
and mid-range speaker cones are made of "Carbocon" - a carbon fiber
material that is the product of the combination of hightensil carbon fiber with
a particular North European cone pulp. This blend exibitis stiffness and low
mass - which is required as the parameters of an ideal piston -action sound
transducer. You can hear thewell controlled tight lows and the unpercedented
natural presence in mid-range reproduction.
Balanced
Drive Mechanism
Mid-range
response is heightened by both the Balanced Drive Mechanism and the
Diffuser/Equalizer The Balanced Drive Mechanism, provides for the oversized
voice coil to be mounted at the cone's
center of gravity. By placing the
coil at the point where the driving masses of the outer and inner side of the
cone are balanced, the cone paper's bending motion or "doubling" is
greatly reduced. The results is the faithful conversion of electrical input to
audio output in a wider range of frequencies.
The
mid-range and tweeter "Diffuser/Equalizer" provides for a mid to high
frequency response that is highly transparent and smooth. This acoustic
equalizer eliminated peaks and dips better than anything yet developed.
Advanced
Woofer Design
High quality
bass response is assured by Sony's advance woofer design. The woofer design
concept calls for a high elastically in suspension, so that the necessary
damping of the cone's movement can be achieved. A newly developed spider made of high quality glass epoxy is used to keep
linear movement in line and prevent any unwanted vibration in other modes. You
end up with clean, non-fuzzy reproduction of low frequencies. Adequate damping
of the woofer cone movement is further achieved with the extra powerful magnet
and T-shaped pole-piece which focuses the magnetic field on the most effective
area.
Advanced
Tweeter Design
The
SSU-4000 feature a TitanumDome Tweeter.
This tweeter
has applied to its surface a 20 micron thickness of titanium foil. Titanium was
selected because it's not only strong, but light enough to move fast, which is
required at high frequencies.
They are
also equipped with a precision cast aluminium frame, continually adjustable
level control for the mid-range and tweeter, and an intricate dual-slope L/C
network to smooth blend the output of the mid-range and tweeter.
Only the
highest quality materials are used throughout including aluminium, cooper, high
density flakeboard, double-knit grille cloth fabric, and fine, hand-rubbed
hardwood veneers.
The Sony
SSU-4000 (and SSU-3000) are for those who refuse to pay for gimmickry and, more
importantly, demand quality and perfection.
Sony
SSU-4000 Features
3-way
bass reflex system with 10" cone woofer, 14" rectangular bass
radiator and 3 ¼" balanced
drive cone midrange
"Carbocon" carbon fiber cone material is stiff and of
low mass for outstanding frequency and
transient response.
"Balanced
Drive" mid-range with oversize voice coil eliminates cone
"doubling"
Buffer Board
between woofer and passive bass radiator prevents internal reaction caused by
standing wave effects.
Intricate
Dual-Slope L/C Network blends woofer, mid-range and tweeter to reduce sharp
peaks and dips.
Mid-range
and tweeter "Diffuser/Equalizer" smooths peaks and dips in the mid to
high freqiency range.
Newly-developed
spider of glass epoxy reduces unwanted vibration in the low frequency mode,
while maintaining long, linear voice coil excursion.
20 micron
Titanium Dome Tweeter for transparent highs.
Precision
cast Aluminum Frame keeps cone and voice coil locked in position, and reduces
transfer of unwanted vibrations to cabinet.
Cabinet
finished in fine, hand-rubbed multiple lacquer coatings and hardwood veneer.
Specifications
Nominal
Impedance: 8 ohms
Frequency
Response: 30 Hz - 20 kHz
Crossover
Frequencies: 500 Hz (12 dB/oct); 5,5 kHz (6 dB /oct)
Power
Handling Capability: 100 W (DIN 45500)
Recommended
Amplifier Power:
Minimum
: 20 watts
Maximum
: 150 watts
Speaker
Complements:
1 x 10"
(254 mm) cone woofer
1 x 9"
(230 mm ) passive Radiator
1 x 3 ¼" (80 mm) midrange driver
1 x 1"
(25 mm ) dome tweeter
Midrange and
Tweeter Controls:
+3 dB to -3
dB
+4 dB to -40
dB
Dimensions
(H x W x D): 1192 x 343 x 361 mm
(46-15/16" x 13-1/2" x 14-3/16")
Weight: 32 kg (70 lb 9 oz)