KEF KC62 (Each)

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A powerful subwoofer with a large volume of deep bass in the compact dimensions of the aluminum enclosure. The patented Uni-Core loudspeaker system with a pair of units on opposite walls of the enclosure significantly suppresses its own resonances. Each unit of the system has its own powerful five-hundred-watt class D amplifier. The DSP processor together with the feedback system ensures an even frequency characteristic and optimal working conditions for the speakers. Received the Best Product 2021 - 2022
award from the EISA association in the HI-FI SUBWOOFER category

The powerful subwoofer, only slightly larger than a soccer ball, is optimal for supplementing the sound with the deepest bass in a set with KEF LS50, LS50 META, LS50 Wireless II or KEF LSX speakers. Thanks to the wide connectivity, including the possibility to supplement the subwoofer with a module for wireless sound transmission, it can also be included in a set with other speakers of a similar category.

• Large volume of deep bass
• Aluminum alloy enclosure
• 63% smaller volume than KF92
• Uni-Core system with a pair of 165 mm diaphragms
• Suppression of the enclosure's own resonances
• P-Flex - a special high-pressure-resistant
  diaphragm suspension wave
• Intelligent Distortion Suppression Technology (SDCT)
• Maximum connectivity 
• Settings Integration of the unit into the iBX music system
  with an intelligent limiter and corrections according to the location in the space
• Two class D amplifiers with a total power of 1000 W
• Closed enclosure made of aluminum alloy
• The possibility of setting parameters for easy integration into a system
  with virtually any loudspeakers in any room.
• Input for KW1 adapter for wireless audio transmission.

Force Cancellation technology

The subwoofer uses twin speakers on opposite sides of the enclosure to strengthen it and suppress its own vibrations. A pair of speakers with rigidly mechanically connected magnets working in phase on opposite sides of the enclosure for vibration suppression and overall reinforcement, which are also used by the Blade loudspeakers or the Reference 8b subwoofer, was first used by the KEF brand in the Reference 104/2 model back in 1984. A pair of powerful speakers with however, due to the large lift of the diaphragm placed against each other, it occupies a large depth and thus does not allow to achieve small dimensions of the sound box. The heart of the KC62 is therefore the unique patented Uni-Core double speaker technology. This unique technology combines two speaker systems into a common chassis. The concentrically arranged oscillators of both systems working in antiphase together share a powerful magnetic circuit. This made it possible to reduce the size of the sound box by more than a third compared to conventional speakers, and twice the area of ​​the membrane compared to one speaker increases the radiated power by up to 6 dB. The second novelty is the rubber wave of the suspension of the P-Flex membrane. Its unique folded profile, inspired by Japanese Origami, better resists the high acoustic pressure in the enclosure and, compared to the traditional profile, enables more precise movement of the diaphragm. The Uni-Core technology maintains a large linear deflection of the membrane, so even with small dimensions, the subwoofer achieves a surprisingly large volume of the deepest basses and their more accurate reproduction. This made it possible to reduce the size of the sound box by more than a third compared to conventional speakers, and twice the area of ​​the membrane compared to one speaker increases the radiated power by up to 6 dB. The second novelty is the rubber wave of the suspension of the P-Flex membrane. Its unique folded profile, inspired by Japanese Origami, better resists the high acoustic pressure in the enclosure and, compared to the traditional profile, enables more precise movement of the diaphragm. The Uni-Core technology maintains a large linear deflection of the membrane, so even with small dimensions, the subwoofer achieves a surprisingly large volume of the deepest basses and their more accurate reproduction. This made it possible to reduce the size of the sound box by more than a third compared to conventional speakers, and twice the area of ​​the membrane compared to one speaker increases the radiated power by up to 6 dB. The second novelty is the rubber wave of the suspension of the P-Flex membrane. Its unique folded profile, inspired by Japanese Origami, better resists the high acoustic pressure in the enclosure and, compared to the traditional profile, enables more precise movement of the diaphragm. The Uni-Core technology maintains a large linear deflection of the membrane, so even with small dimensions, the subwoofer achieves a surprisingly large volume of the deepest basses and their more accurate reproduction. Its unique folded profile, inspired by Japanese Origami, better resists the high acoustic pressure in the enclosure and, compared to the traditional profile, enables more precise movement of the diaphragm. The Uni-Core technology maintains a large linear deflection of the membrane, so even with small dimensions, the subwoofer achieves a surprisingly large volume of the deepest basses and their more accurate reproduction. Its unique folded profile, inspired by Japanese Origami, better resists the high acoustic pressure in the enclosure and, compared to the traditional profile, enables more precise movement of the diaphragm. The Uni-Core technology maintains a large linear deflection of the membrane, so even with small dimensions, the subwoofer achieves a surprisingly large volume of the deepest basses and their more accurate reproduction.

Maximum connectivity

Thanks to maximum connectivity, it is not a problem to easily include this model in practically any audio system. The unfiltered LFE input can be connected to a home theater AV receiver, a stereo device equipped with a Pre Out output on a pair of Cinch inputs L and P. For devices without these outputs, there are high-level inputs that connect to the speaker outputs. Wireless sound transmission using the KW1 set of special accessories makes it easier to find the optimal place for the subwoofer in the room. In this case, the receiver from the set is plugged into a special port and secured against falling out by a pair of screws. A set of miniature slide switches can be used to select stereo or mono mode on the line RCA outputs, engage and set the low cut-off frequency of the high pass. This will make it possible to optimize the frequency coupling of the subwoofer to loudspeakers equipped with a built-in or external power amplifier. Especially small bass speakers are thus not unnecessarily overloaded with deep bass, which is not able to radiate anyway.

Optimal connection to the main speakers

Several setting options are available for optimal connection of the subwoofer to the main speakers. Depending on the location of the subwoofer in the room, one of the five basic preselected correction curves can be selected with the slide switch - in the room, next to the wall, in the corner, in the furniture or a regular room. Other settings can be entrusted to the automatic AV receiver (LFE) or, using the level regulators, frequency divider and phase switch, everything can be set manually.

Technical parameters