Vandersteen Audio 1-C Brochure

VANDERSTEEN MODEL 1C

DIMENSIONAL PURITY

®

The VANDERSTEEN MODEL 1

The Model One 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

its many potential advantages:

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positioning and their associated minimum baffles were each developed
with the aid of FFT (Fast Fourier Transform) computer analysis to

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minimize diffraction, cone break-up, multi-driver interference and out-of­band 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 One due to

The Components

The active components used in the Model One combine classic strength
and durability with innovative design and construction. The woofer uses
the same type of cast-metal basket used in costly esoteric loudspeakers
rather than an inexpensive stamped basket. The cast-metal basket’s

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amplifier or receiver.

Model One more precise imaging and a more stable soundstage
than conventional two-way speakers using out-of-phase drivers. The
crossover’s computer-grade components, including film capacitors in
the signal path, are hand soldered on a double-sided, plated-through

PC board for enhanced consistency and reliability.
inherent rigidity and superior vibration resistance increase cone move­ment accuracy and reduce sympathetic resonances for cleaner and more
natural sound. A filled polycone is used to insure high stiffness, superior
internal dampening and greater neutrality than metal alloy, woven
plastic or treated paper cones. The stiff, low weight polycone resists
flexing under all drive conditions for lower distortion and improved
detail. The Model One’s transmission-line port extends bass response
while operating much closer to the ideal than any of the more
conventional ported or passive designs.
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
compared to common fabric and plastic domes. The quality materials
and advanced features of the Model One’s tweeter result in smooth
and accurate response throughout the audible range.
The crossover of the Model One is a transient-perfect, first-order
network designed to preserve the phase integrity of the original sound.
It is compensated to allow the drivers to operate in absolute phase with
each other while maintaining flat amplitude response. This gives the

The baffles holding the drivers of the Model One 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 imaging

and enhances the openness and transparency of the speaker. The

enclosure of the Model One is constructed of MDF, a pressure-formed

material that effectively resists vibration and controls cabinet

resonances. Broad spectrum, low-Q resonances are controlled so

as to cancel rather than become additive.

To insure consistency, each speaker is FFT analyzed for correct

response and performance compared to a model reference prior to

leaving the factory. The Model One combines superior components,

innovative engineering and quality construction for exemplary

performance and unparalleled value.

More precise 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.
A stable impedance, assuring complete compatibility with any

The Almighty Specification

Even with advanced test equipment and complex computer analysis,
loudspeaker design remains an incomplete science. No measurements
currently available can fully convey the sound of a speaker or provide
a meaningful comparison between differing designs. The truth is
in the listening.

TWEETER: 1” critically damped, dual chamber metal alloy dome
Ferrofluid voice coil cooling

WOOFER: 8” die-cast basket with curvilinear polycone
1
40 oz. focused-gap magnet structure

IMPEDANCE

6.8 ohms 2 ohms
EFFICIENCY

90dB with 2.83 volts of pink noise
input at 1 meter on axis

RECOMMENDED AMPLIFICATION
20 to 100 watts per channel

FREQUENCY RESPONSE
38Hz to 22,500Hz 3dB

DISPERSION
38Hz to 15,800Hz 3dB
at 30 degrees off axis

CROSSOVER FREQUENCY
2800Hz, 6dB per octave

1/2

” two-layer voice coil with ventilated aluminum former

VIDEO APPLICATIONS

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Main or surround speakers
The Model One is not magnetically
shielded and should be positioned
at least 10 inches away from a
direct view television set

PHYSICAL DIMENSIONS
36” high, 12” wide, 10” deep
44lbs net, 51lbs gross, each

WARRANTY
One year, extendable to five years
by registering the free optional
warranty within 30 days of purchase

Specifications and design are subject to
change without notice due to our
ongoing development program.

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 reveal the power, the authority,

the subtlety and the intimacy of the music.

This dimensional purity is the essence of the Model Ones. 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 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.

VANDERSTEEN AUDIO

116 West Fourth St, Hanford, California 93230

[phone]

Literature design by Ron Rick and photography by Alan Ross.

PDF Copyright 1999 by VANDERSTEEN AUDIO Inc.

VANDERSTEEN AUDIO products are made in the USA.
Speaker pictured with optional Model 1 Base.