Neumann KH 870 II AES

The Neumann KH 870 II AES67 is a flagship DSP-controlled active studio subwoofer designed for professional monitoring environments, delivering ultra-deep bass extension down to 16 Hz and advanced 7.1.4 bass management. Featuring dual 10-inch ELFF™ long-throw drivers, AES67 Audio over IP connectivity, integrated DSP processing, and compatibility with Neumann’s MA 1 Automatic Monitor Alignment system, it provides exceptional low-frequency accuracy for stereo, surround, immersive audio, broadcast, and post-production applications.

The Neumann KH 870 II AES67 is a reference-grade active studio subwoofer engineered to meet the demands of modern music production, film mixing, broadcast, mastering, and immersive audio environments. Combining powerful low-frequency performance with advanced DSP control and Audio over IP networking, it serves as both a high-performance subwoofer and a sophisticated multichannel bass management hub.

At its core, the KH 870 II AES67 utilizes two newly developed 10-inch long-throw bass drivers featuring Neumann’s Extremely Linear Force Factor™ (ELFF™) technology. This advanced driver design minimizes distortion while maintaining exceptional linearity, allowing the subwoofer to reproduce frequencies as low as 16 Hz with remarkable precision and impact. The ultra-rigid wooden cabinet, front-facing bass reflex ports, and optimized internal construction ensure fast transient response, reduced group delay, and accurate low-frequency reproduction even at high output levels.

Beyond low-frequency extension, the KH 870 II AES67 functions as a complete monitoring management solution. Its integrated DSP engine provides precise crossover control, phase alignment, protection limiting, and room optimization. When used with the Neumann MA 1 Automatic Monitor Alignment system, the subwoofer performs detailed acoustic calibration, helping achieve a more accurate monitoring environment.

The KH 870 II AES67 is fully equipped for modern networked audio workflows. Dual redundant AES67 Ethernet ports support Audio over IP standards including AES67, SMPTE ST 2110, ST 2022-7 redundancy, and RAVENNA. The system can receive up to 12 channels of network audio, making it ideal for immersive monitoring configurations up to 7.1.4.

Extensive analog and digital connectivity allows seamless integration into virtually any professional studio setup. Multiple XLR, SUB-D 25, and AES3 BNC connections enable the KH 870 II AES67 to function as a central monitoring hub while also bringing modern DSP room correction and phase alignment capabilities to legacy analog Neumann monitoring systems.

Designed for the highest level of professional performance, the KH 870 II AES67 combines exceptional bass accuracy, flexible connectivity, advanced DSP processing, and network audio integration in a single powerful monitoring solution.

Key Features

• Reference-grade DSP-controlled active studio subwoofer
• Dual 10-inch long-throw ELFF™ bass drivers
• Ultra-low frequency extension down to 16 Hz
• Integrated 7.1.4 multichannel bass management
• AES67 Audio over IP networking support
• Compatible with SMPTE ST 2110 and ST 2022-7 redundancy
• RAVENNA network audio compatibility
• Supports up to 12 channels of AoIP audio
• Integrated DSP for crossover, phase, and room optimization
• Compatible with MA 1 Automatic Monitor Alignment
• Functions as a multichannel signal distribution hub
• Front-facing bass reflex ports for improved placement flexibility
• Low distortion and fast transient response
• Extensive analog and digital connectivity
• Intelligent thermal, excursion, and soft-clip protection
• Ideal for stereo, surround, Dolby Atmos®, broadcast, mastering, and post-production environments