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Klein + Hummel Introduces New Subwoofers at NAB

Klein + Hummel O 810 subwoofer

At NAB 2008, Klein + Hummel debuted its O 810 and O 870 subwoofers, which are designed to compliment the company’s range of monitors and can be used either as a unit that’s dedicated to reproducing the LFE channel, or as a way of providing low-frequency extension and increased maximum SPL for the main loudspeakers.

“The O 810 and O 870 now make it possible to assemble flexible monitoring systems for different sizes of studios, with a smooth and uniform response that ranges from less than 20 Hz to greater than 20 Hz,” says Andrew Goldberg, Klein + Hummel’s product manager for studio systems.

The built-in 7.1 Channel High-Definition Bass Manager is compatible with all formats from mono to the latest 7.1 high-definition systems, such as Blu-ray and HD DVD. The models use eight channels of analog, or an optional 8-channel 24-bit 192kHz digital input card. Four-mode LFE channel processing promises maximum compatibility across all formats. Fourth-order crossovers and flexible acoustical controls promise seamless system integration. Built-in volume control allows for centralized system replay level adjustment independent of the source, and the electronics can be remote-located to reduce cabling.

Klein + Hummel O 870 subwoofer

The O 810 and O 870 can be used in music, broadcast and post-production studios for tracking, mixing and mastering. They may be positioned next to a wall or flush mounted into a wall, and can be mixed freely in multichannel systems with other loudspeakers from the Klein + Hummel range. Additional accessories are also offered.

The company expects to begin shipping the O 810 and O 870 during the summer. For more information, visit or Klein + Hummel’s U.S. distributor, Sennheiser USA, at