Infinity Kappa 6.1 Audiophile Speakers

Model

Kappa 6.1

Type

Front speaker

Brand

Infinity

Polydomes replaced with MD-7509T/C midrange drivers. Slight tear on one of the mids. If you know Infinity you know these guys punch way above their weight, in size and price. Great speakers. Pickup only. Cash only. To weed out the "is this availables" I am asking you to tell me the first name of the inventor of Infinity audio speakers in your response. Demo only at asking price. A 20 cm cone type woofer by IMG cone is mounted in the low 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 Kappa6.1i is lighter and stiffer than conventional IMG cones (10% lighter and 5% harder than conventional cones). Φ 133x19mm magnet and cotton thread wire are used 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 network is designed by a computer using the MLSSA FET program, and the operating range of each speaker unit is determined. In addition, real-time fine-tuning is performed in an anechoic room, and finally, many audition experiments are repeated in the same room as the actual home environment. In addition, individual components such as capacitors, resistors, and coils are carefully selected through subjective listening experiments, and extra-thick monster cable of Infiniti special specification is used for internal wiring. It is bi-amped and has level adjustment for middle and high sound. To minimize the effects of internal standing waves, the enclosure uses a column-shaped polygonal cabinet with 26.5 mm thick baffle material, natural wood solid oak, and oak-plated board. A bass reflex duct is located at the bottom of the rear of the enclosure with removable spikes for bass and room tuning. Model Rating Method 3-Way, 3-Speaker, Bass Reflex System, Floor Type Units Used For low band : 20 cm cone type For Middle Area : 7.6 cm Dome Type For High Frequency : Flat Type Frequency characteristic 45 Hz to 35 kHz ± 2 dB Input impedance 6 Ω Output sound pressure level 89dB/2.8Vrms Allowable input 150W Crossover frequency 500 Hz, 4.5 kHz External dimensions Width 305x Height 940x Depth 252 mm Weight 18.6kg