Neumann KH 870 II

Next generation subwoofer

The KH 870 II surpasses its predecessor in acoustic performance and offers new features. Thanks to two new 10-inch long-throw woofers with Extremely Linear Force Factor (ELFF™) technology and intelligent protection limiters, the KH 870 II ensures exceptionally low distortion even at maximum sound pressure levels.

The KH 870 II extends the reproduction of low frequencies down to 16 Hz and delivers approximately twice the power of the KH 810 II. This makes the KH 870 II the perfect complement to midfield monitors such as the KH 420.

The KH 870 II is DSP-controlled for outstanding sound quality and seamless integration via MA 1 Automatic Monitor Alignment (sold separately). In combination with analogue Neumann studio monitors such as the KH 120 A (no longer available), KH 310 or KH 420, it offers sufficient DSP power to tune the entire stereo surround or even immersive system with MA 1 and thus optimise not only the frequency response but also the phase. Of course, the KH 870 II is also a perfect complement to Neumann's DSP-controlled studio monitors. In surround and immersive systems, analogue and DSP-equipped Neumann loudspeakers can be combined with MA 1 with Multichannel Extension (available separately) and adapted to the room. This makes the KH 870 II much more than "just" a subwoofer: it is the perfect tool for upgrading existing systems and/or expanding them for immersive audio.

Precision in every detail

As subwoofers are usually placed on the floor, a robust grille protects the driver from accidental damage. The solidly constructed cabinet features a highly efficient bass reflex system that is carefully designed and tuned to ensure precise bass reproduction without audible port noise.

For stereo operation, two analogue XLR inputs and outputs are available for connecting the subwoofer. For multi-channel operation, the KH 870 II offers two Sub-D25 connections for up to 12 analogue input channels and two further Sub-D25 connections for up to 11 analogue output channels. All inputs and outputs are electronically balanced. Studio monitors can also be connected digitally via AES3 (BNC). For audio networks, this subwoofer is also available as an AES67 version, the KH 870 II AES67.

The KH 870 II is ideal for music, film, broadcast and post-production studios for tracking, mixing and mastering. Thanks to an innovative power amp design, the KH 870 II combines outstanding audio performance with excellent energy efficiency. Its auto standby function can be deactivated in the MA 1 app.