INFINITY Kappa 7.2i Floor-Standing Tallboy Speakers Pair Tested Japan FedEx GS03
Including & Condition Details: As shown in photos. INFINITY Kappa 7.2i Floor-Standing Tallboy Speakers Pair. Polydome units are known to crack due to hydrolysis caused by aging.
Both left and right have been replaced with new ones (see photo). In addition, the woofer unit, which is the key to bass, has been carefully center-adjusted. This is a restored item that has had the attenuator and speaker terminals cleaned and polished. Quoted from the following site: The newly developed 25cm cone type Woofer which used an IMG cone is carried in low-pass. The IMG cone is a diaphragm that is lightweight and highly rigid while maintaining the characteristics of polypropylene.It is made from a graphite fiber and polypropylene composite and is injection molded at high temperature and pressure. In this cone, the graphite fibers are arranged radially from the center to the periphery, so the non-deformable operating area of??
Excellent performance with no cone breakup. In addition, the combination of polypropylene and graphite fiber eliminates unnecessary resonance. It ensures excellent damping and high strength. In addition, the specially designed Kirby Linear Cone adds strength to the piston during movement, The newly designed inverted dust cap provides increased strength.
This minimizes cone deformation even under high-power conditions. The second-generation Kappa series further improves the IMG cone, making it approximately 10% lighter and 5% harder.It also uses a lightweight, heat-resistant Kapton bobbin and ribbon wire that can handle large currents. The woofer unit of the Kappa7.2i has an fo of 25Hz. The newly designed 7.6cm dome-shaped midrange is carried in the mid range. This unit is an improved version of the polydome used in the original Kappa series.
It uses a newly developed ultra-thin (0.3mm) soft polypropylene composite diaphragm. This new Polydome uses a low-Q dome diaphragm and a large-diameter edge-wound voice coil.
It is driven from the outside of the dome. An aluminum mesh diffuser has also been added to the rear of the dome. This diffuser has the function of suppressing the distortion of frequency characteristics caused by rear waves without putting stress on the dome-shaped diaphragm. This achieves a flatter frequency response and lower distortion. Furthermore, the acoustic energy radiated from the rear surface of the dome is guided to the back cavity through the center of the specially designed magnetic circuit, eliminating the influence of rear sound pressure.EMIT-R, a plane-type tweeter original with Infinity, is carried in the high region. The EMIT-R uses an extremely thin Kapton film for the flat diaphragm. A circular voice oil is photoetched onto the surface. This diaphragm is directly driven by a specially shaped magnetic circuit. It achieves flat characteristics with few peaks and valleys, wide directivity, and low distortion.
The level control is carried in the mid-high range. The enclosure is a column-shaped polygonal enclosure in order to suppress the influence of internal standing waves to a minimum.In addition, the use of high-density, low-resonance particle board as the material gives the instrument a natural sound. The exterior is finished in honey oak, while the interior is also finished in oak veneer. Hi, my name is Danny Chou. I live in Tokyo, Japan. I can speak quite fluent English.
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