Infinity Auto Electronics
The Infinity brand has a distinguished pedigree of technological innovation in reference-quality audio reproduction and much of it has gone into the Infinity Kappa 52.11i 5-1/4-inch (130-millimeter) two-way coaxial speakers. These speakers feature proprietary Injected Carbon Glass Matrix (iCGM) frames and patented formed-glass-fiber Plus One® (U.S. patent no. 7548631) woofer cones. Each of them has a 3/4-inch (20-millimeter) coaxially mounted UniPivot™ (U.S. patent number 6002780) tweeter with a soft-dome edge-driven fabric diaphragm for improved power handling and wide high-frequency dispersion. The low-hysteresis polypropylene capacitors and low-loss air-core inductors in the speaker’s passive filter networks are of ultrahigh quality. Even the soft-touch rubberized finish on the protective grilles represents the Infinity brand’s incredible attention to detail. The sound coming from the 52.11i speakers can change a dull morning commute into a flight of glorious music. Just try it and see – and hear.
25 – 75 watts suggested amplifier power range
Infinity engineers designed the Kappa 52.11i coaxial speaker to produce impressive accurate sound from a head-unit or amplifier capable of delivering up to 75 watts of power. This makes the Kappa 52.11i an ideal coaxial-speaker upgrade for systems powered with head-unit or factory amplifier power. They also handle the power from aftermarket amplifiers that are part of very high-fidelity aftermarket upgrades. Remember great power-handling specifications increase reliability over the lifetime of the speaker and that means that you’ll be enjoying the Kappa Series for many musical years.
Injected Carbon Glass Matrix (iCGM) frames
Kappa automotive speakers benefit from light and strong composite Injected Carbon Glass Matrix (iCGM) frames. Kappa Series speakers resist the environmental extremes that a moving car can encounter. They offer superior rigidity even when mounted on uneven surfaces (common in car mounting locations) and exceptional damping of any resonances.
Vented motor assembly
The Infinity Kappa 52.11i coaxial speakers feature a vented motor assembly to let the voice coil breathe. It reduces the probability of power compression in systems playing loud over a long period of time. It means a more efficient use of amplifier power so that all the power delivered to the woofer is directed to the voice coil and not wasted as residual heat.
Plus One™ woofer-cone technology
The Plus One™ cone on the Kappa series offers more overall speaker-cone area than other speakers in its class. With an effective increase in cone area the speaker radiates more air. Also the carbon-injected cone material produces a lighter and stiffer cone. The result is a better low-frequency response and a greater ability to make those important nearly tangible musical notes that people often associate with a larger speaker size.
Edge-driven soft-dome fabric tweeter
The 1-inch (25.4-millimeter) soft-dome edge-driven fabric tweeter design in the Infinity Kappa tweeter increases power handling while reducing high-frequency distortion. An edge-driven tweeter also has better dispersion characteristics and allows for a lower crossover frequency than comparable tweeters of its size which improves imaging. The result is improved vocals and clarity in music. There’s no sense in having a speaker play loud if it doesn’t sound clean too.
2-ohm nominal impedance
The 2-ohm nominal impedance of the Infinity Kappa 52.11i coaxial speakers allows compensation for any added resistance in thin factory-installed speaker wiring and provides more output than factory speakers in its class.
Ultra high-frequency response (up to 25kHz)
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