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UPGRADABLE LOUDSPEAKER:
Since 1977, Vandersteen Audio has designed and built innovative
loudspeakers using advanced design concepts. Minimum-area baffles
eliminate virtually all cabinet edge and grille diffraction anomalies
while mass alignment of driver elements insures proper time arrival.
Vandersteen Audio was the first loudspeaker manufacturer to use
the Gen-Rad 2512 FFT (Fast Fourier Transform) Computer Analyzer
for in-house research and development and remains a leader in
interfacing complex computerized analysis of loudspeaker parameters
and performance with practical design and engineering.
The Vandersteen Model 3A Signature benefits from our years of
experience designing and building loudspeakers of unparalleled
value and performance. It couples proven technology with advanced
materials, construction and design for a speaker system that is
always true to both science and music. The Model Three is completely
upgradable. As future improvements in technology and/or materials
enhance the capabilities of the speaker, cost-effective updates
will be available to upgrade existing speakers to the latest components,
performance and specifications.
THE ACTIVE COMPONENTS:
The components used in the Vandersteen Model 3A Signature combine
classic durability and strength with innovative design and construction.
The metal-alloy dome tweeter is a dual-chamber design to improve
range and linearity. It is critically damped to extend the high
frequencies past audibility without the excessive ringing associated
with open or underdamped metal dome tweeters. The specific alloy
used for the dome was chosen for its superior strength and resistance
to break-up.
With our experience in FFT computer analysis and extensive research
into the negative effects of diffraction, we developed a unique,
proprietary midrange driver (Patent # 5073948) that outperforms
previous designs in several significant parameters. In conventional
cone midranges, the acoustic energy from the back of the cone
immediately strikes the front of the driver's magnet assembly
and is reflected back through the cone and into the listening
room. This distorted secondary signal created by the internal
diffraction smears the sound of the driver and inhibits true transparency.
The frontal area of the magnet assembly on the Vandersteen midrange
is minimized through the use of advanced materials and construction
techniques to reduce internal diffraction and the resultant distortion
to inaudible levels. With the elimination of this distortion,
the sound of the Model Three is cohesive and smooth with a level
of inner resolution unequaled by other loudspeakers.
The active acoustic coupler and woofer use costly cast-metal
baskets rather than the more common stamped baskets. The cast-metal
baskets' inherent rigidity and superior vibration control increase
cone movement accuracy and resist sympathetic resonances for cleaner
and more natural sound. Filled polycones are used on the woofer
and midrange to insure high stiffness, superior internal dampening
and greater neutrality than metal alloy, woven plastic or treated
paper cones. The stiff, low weight polycones resist flexing under
all drive conditions for lower distortion and increased detail.
The dual-spider active acoustic coupler accurately complements
the woofer to reduce box loss, thermodynamic loss and active/passive
transfer nonlinearities. This novel Electro- Mechanically Optimized
Woofer System provides powerful, detailed and extended bass response
as the Model Three operates much more closely to the ideal than
conventional ported or passive designs.
THE CROSSOVER:
The crossover in the Vandersteen Model 3A Signature is comprised
of transient-perfect, first-order networks designed to preserve
the phase integrity of the music. It is compensated to allow the
drivers to operate in absolute phase with each other for more
precise and stable imaging than in conventional multi-way speakers
using out-of-phase drivers. The crossover's computer-grade components,
including low impedance air-core inductors and high-quality film
capacitors in the signal path, are hand soldered on a double-sided,
plated-through PC board tested to insure less than 0.1dB deviation
from a reference circuit. Like all Vandersteen Signature Products
the crossover is hand tweaked with the speaker in an anacoic chamber
into matched pairs. Custom 6N wire with polypropylene dielectric
is used for internal wiring to maximize signal transfer.
The crossover is engineered for bi-wiring with a stereo amplifier
or passive vertical bi-amplification with two identical stereo
amplifiers. Inputs are heavy-duty screw terminals.
THE ENCLOSURE:
The baffles holding the drivers on the Vandersteen Model Three
are as small as possible to eliminate virtually all of the early
reflections that affect dynamic speakers with conventional flat
or low diffraction baffles. Reducing both early reflections and
edge diffraction improves the imaging and enhances the openness
and transparency of the speaker.
The Vandersteen Model 3A Signature's enclosure is constructed
of 1 to 1 1/2 inch thick MDF, an advanced material that resists
vibration and reduces cabinet resonances. Broad-spectrum, low-Q
resonances are controlled so as to cancel rather than become additive.
THE ALIGNED DYNAMIC DESIGN:
The Vandersteen Model Three uses the proven Vandersteen Aligned
Dynamic Design to optimize the dispersion and transient accuracy
of the drivers while maintaining the input signal's time and phase
integrity. The drivers, their positioning and their associated
minimum baffles were developed with the aid of FFT computer analysis
to minimize diffraction, cone break-up, multi-driver interference
and out-of-band phase irregularities. The construction, alignment
and positioning of the drivers allow a point-source wave front
and maximize the phase coherence of the loudspeaker at the listening
position.
The Aligned Dynamic Design is used for the Model Three due to
its many potential advantages:
Precise, more dimensional imaging and a wider listening area.
A greater flexibility of placement options within the listening
room and better transient response.
A high level of genuine transparency and detail typical of planar
speakers without the distortions and response variations of multi-directional
dynamic loudspeakers.
Increased efficiency and improved dynamic range.
QUALITY CONTROL:
Each Vandersteen Audio Model Three undergoes rigorous testing
and retesting during each phase of construction. Each driver and
crossover is tested for proper operation and computer matched
to within 0.1dB. After final assembly, each pair is high-power
sweep tested for structural integrity and FFT computer analyzed
for correct response and performance compared to a model reference.
This intense commitment to product quality and reliability is
unsurpassed in the audio industry.
DIMENSIONAL PURITY:
Music is pure in its dimensions. Vandersteen loudspeakers are
true to the original dimensions of the music. They preserve its
carefully crafted proportions and weight. They accurately convey
the composition, shading and timing that build an involving experience.
They reveal the power, the authority, the subtlety and the intimacy
of the music.
This dimensional purity is the essence of the Vandersteen Model
Threes. It allows them to recreate the music's original scope
and passion. You hear deeper into the music and better understand
the feelings forming its foundation. You become more involved
in the music as its complex inner structure is revealed with increased
clarity and realism.
At Vandersteen Audio, we believe that these qualities are fundamental
to your enjoyment of your music. We are pleased to have embodied
these qualities in a speaker whose simple, but elegant, physical
presence complements the decor of your listening room. We are
devoted to continue building distinguished loudspeakers that make
a statement about the importance of music in your life.