Vonyx WP20 - 8-inch (20 cm) 125W Hi-Fi Woofer with Polypropylene Cone
The Vonyx WP20 is a high-performance subwoofer designed for audiophiles and sound enthusiasts seeking accurate and powerful low-frequency reproduction. Part of Vonyx's acclaimed WP series, this 8-inch woofer is constructed from premium materials to deliver exceptional sound response in both home hi-fi systems and car audio installations. Its polypropylene cone, along with a very low resonant frequency (41 Hz), ensures deep, punchy, and distortion-free bass, making it the perfect foundation for a balanced and dynamic sound system.
Main Features
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Semi-Transparent Polypropylene Cone: Made from a lightweight and extremely rigid polymer, the WP20's flat cone minimizes flexing and distortion. This material is known for its excellent internal damping, resulting in clear, detailed, and natural sound reproduction.
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Dual-Layer Foam Suspension: The cone rim features a high-elasticity foam suspension that allows for greater linear excursion (cone movement). This facilitates the reproduction of lower frequencies with outstanding accuracy and control.
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Heat-Resistant Voice Coil: Equipped with a 2-inch (50.8 mm) copper voice coil on an aluminum former, the WP20 is designed to dissipate heat efficiently. This allows it to handle high power levels (up to 125W RMS) for extended periods without performance degradation.
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Powerful Magnetic Structure: A 29-ounce (approximately 822-gram) ferrite magnet drives the cone's movement. This robust magnetic motor ensures a high level of efficiency and precise control, improving the speaker's transient response and overall dynamics.
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Rigid Steel Chassis: The woofer is mounted on a solid steel basket that provides a stable, resonance-free base, ensuring that all the energy is converted into sound and not unwanted vibrations.
Product Benefits
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Deep and Defined Bass: Thanks to its low resonant frequency and optimized design, the Vonyx WP20 reproduces bass notes with impressive depth and punch, without sacrificing clarity or detail.
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High Fidelity Sound: The combination of its high-quality components results in a superior sound experience, ideal for listening to music with exceptional fidelity or for feeling every detail in a movie.
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Reliability and Long Lifespan: The robust construction, heat-resistant voice coil, and durable materials ensure that the WP20 will operate reliably for years, even under heavy use.
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Application Versatility: Its standard 8 ohm impedance and well-defined Thiele/Small parameters make it compatible with a wide range of amplifiers and perfect for DIY speaker building projects, replacements, or upgrades to existing systems.
Use Cases
The Vonyx WP20 is the ideal choice for a wide variety of audio applications:
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Home Hi-Fi Systems: Perfect for building your own two- or three-way speakers, or for replacing an old or damaged woofer in bookshelf or floorstanding speakers.
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Car Audio Upgrades: An excellent option for those who want to significantly improve the bass response in their vehicle, by installing it in doors, rear trays, or custom speaker boxes.
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DIY Projects and Experimentation: Its detailed technical specifications make it a fantastic component for students, hobbyists, and speaker builders who want to design and create their own custom sound systems.
Frequently Asked Questions
What type of speaker enclosure is recommended for this woofer?
With a Qts parameter of 0.54, the Vonyx WP20 is very versatile. It performs excellently in both sealed enclosures, for faster and more controlled bass, and ported (bass-reflex) enclosures, for greater extension and level in the lower frequencies.
Can I use it to replace the speaker in an old speaker cabinet?
Yes, it's an excellent replacement option. Just make sure the physical dimensions (185mm mounting diameter and 91mm depth) and impedance (8 Ohms) are compatible with your speaker cabinet.
What does it mean that the resonant frequency (Fs) is 41 Hz?
Fs is the natural frequency at which the speaker cone vibrates in open air. A low value like 41 Hz indicates that the woofer is inherently designed to efficiently reproduce very deep bass frequencies.
What amplifier do I need to power this speaker?
An amplifier capable of reliably delivering between 100W and 150W RMS to an 8 Ohm load is recommended to take full advantage of the woofer's performance.
Project description
This 8-inch (203 mm) Hi-Fi woofer features a semi-transparent polypropylene flat cone and a double-layer foam surround. It has a nominal impedance of 8 ohms, a power handling of 125W RMS, and a maximum power handling of 250W. Equipped with a 2-inch (50.8 mm) copper voice coil on an aluminum former and a 29 oz ferrite magnet, its frequency response ranges from 41 Hz to 2,000 Hz, with a sensitivity of 87 dB at 1W/1m. The chassis is made of steel and requires a mounting diameter of 185 mm and a depth of 91 mm.
