INFINITY Kappa Video
¥ 60,000 (1 unit, around 1993)
Commentary
This is a center speaker with new Kappa series technology.
Anti-magnetic design is applied for AV applications.
Two 13 cm cone type woofers with IMG cone are installed in the lower range.
This IMG cone is made of a composite material of graphite fiber and polypropylene. It is molded under high pressure (injection molding) with high sound frequency. The graphite fibers are arranged radially from the center to the outer circumference, so that the non-deformation operating region of the cone is large and there is no breakup of the cone.
In addition, it uses a specially designed Kirby linear cone (adding strength to the piston during motion) and a newly designed inverted dust cap to increase the strength, minimizing the deformation of the cone even under high power conditions.
The New Kappa series is lighter and more rigid than the conventional IMG cone (10% lighter and 5% harder than the conventional one), and uses φ 133x19mm magnet and cotton thread wire for the magnetic circuit.
A plane drive type EMIT-R tweeter with a circular diaphragm is mounted in the high range.
The flat diaphragm of the EMIT-R tweeter uses an ultra-thin KAPTON film. An annular voice coil is photo-etched on its surface to form a vibration film, which is combined with a magnetic circuit of a special shape to directly drive the diaphragm.
As a result, flat frequency characteristics and wide-directional characteristics are obtained.
The enclosure uses a column-shaped polygonal cabinet to minimize the effects of internal standing waves.
In addition, it can be mounted on ceiling or wall surface.
There was also the Black Oak model as an order model.
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Model Rating
| Method | 2-way, 3-speaker, bass reflex system, magnetic protection design |
| Units Used | For low band : 13 cm cone x2 For High Frequency : Flat Type |
| Frequency characteristic | 90 Hz to 35 kHz ± 2 dB |
| Input impedance | 6 Ω |
| Output sound pressure level | 89dB/2.8Vrms |
| Allowable input | 150W |
| Crossover frequency | 4kHz |
| External dimensions | Width 527x Height 206x Depth 160 mm |
| Weight | 6.2kg |