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The X-Series
Thank you for choosing the NVX X-Series. Our X-Series is a crowning achievement of modern loudspeaker
engineering – decades of research, development and installation experience have combined to create a truly
remarkable subwoofer. Our uncompromising approach to manufacturing is unique in the industry, and shines
through brightly in the quality and performance of the X-Series. We are proud to build the nest subwoofers
on the market today, and we are condent you will soon be proud to own one.
Great loudspeakers begin with great engineers, and for the X-Series we partnered with the very best, bringing together
experts from around the world. The X-Series began in Denmark as a vision of our extraordinary engineers who
transformed decades of knowledge and experience into a state-of-the art subwoofer with accuracy, transient response,
and tonal quality that is stunning. To mold our woofers into high delity bass machine, we brought them home to the
United States. We refused to compromise the sound, output or durability, so we assembled a team of engineers who
have designed some of the most groundbreaking and celebrated products in subwoofer history. Our US team added
patented technologies to dramatically increase our subwoofers’ output potential without sacricing the sound accuracy
we worked so hard to capture.
Read on to learn about the features incorporated into our X-Series subwoofers that separate them from the competition.
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Cone
After testing scores of different cone materials, we decided on a custom blend of nely milled pulp & Egyptian Papyrus
bers. This stiff yet lightweight material produces spectacularly accurate bass with a rich, natural tonal quality prized by
audiophiles. The smooth matte nish of the cone offers a sleek, modern accent to the interior of any car.
Surround/Suspension
The X-series include oSd surround technology (U.S. Patent #7,031,487 B2) which is an innovative design where
the surround is attached vertically. As a result, the X-Series have an extra 8-12% more surface area than competing
subwoofers with the similar mounting dimensions. The surround itself is constructed with a multi-radius elliptical edge,
which keeps the inward movement of the surround perfectly symmetrical with the outward movement. This contributes
to a more predictable and consistently linear cone movement for smooth, even bass every time.
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Aluminum Shorting Ring
Perhaps the most distinguishing component of the X-Series subwoofers is the innovative aluminum shorting ring system. This technology prevents a rise in inductance caused by the movement of the driver, which has several positive
impacts on the subwoofers’ performance:
1. Improved power delivery to the voice coil
2. Decreased inductive distortion
3. Improved cone linearity
4. Improved high-end extension
5. Decreased risk of overheating
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What is this shorting ring?
The shorting ring is a conductive aluminum ring placed in the air gap between the pole piece and the voice coil former
to reduce inductance. Inductance can best be understood as the change in magnetic energy that occurs as the voice
coil moves in and out of the air gap. In most subwoofers this energy is absorbed by the voice coil, causing impedance
rise, introducing distortion and reducing the woofer’s ability to play at the top of the bass spectrum. In the X-Series
subwoofers, the shorting ring simply absorbs changes in inductance, optimizing the sound quality, output potential
and frequency response of the woofer.
A
B
A.
B.
Aluminum Shorting Ring
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So why does it work?
● Improved power delivery to the voice coil
► Any increase in inductance correlates to an increase in voice coil impedance, meaning increased resistance to
the input power. By preventing inductance rise, we effectively increase the amount of power carried to the voice
coil, increasing the output potential of the woofer with each given watt.
● Decreased inductive distortion
► When inductive energy is introduced into the motor structure, it causes the subwoofer to produce sounds and
artifacts at higher frequencies around the 500-1,000 Hz range. Our aluminum shorting ring absorbs these changes
in inductive energy, resulting in crisp, distortion-free bass.
● Improved cone linearity
► A great deal of care was taken during the research and development process to ensure that the movement of the
cone is as linear as possible. Since inductance is a change in magnetic energy, it’s easy to see how undesired
inductance can alter the movement of the cone. By using our shorting ring, we absorb these changes in magnetic
ux and prevent modulation of the cone resulting in tighter, more accurate bass.