Neumann KH 870 II AES67

Product Description
The Neumann KH 870 II AES67 is a professional DSP-controlled subwoofer with Audio-over-IP (AES67), designed for large control rooms and advanced immersive monitoring systems up to 7.1.4. It features dual long-throw 10-inch bass drivers with Extremely Linear Force Factor (ELFF™) technology, delivering deep, precise, and low-distortion bass extension down to 16 Hz. A powerful multichannel bass management system allows the KH 870 II AES67 to function as a central hub in modern studio, broadcast, and post-production environments. Support for Neumann MA 1 Automatic Monitor Alignment enables precise room correction and seamless integration into complete monitoring systems.

Features
DSP-controlled active subwoofer for large control rooms and immersive audio systems.
Dual 10-inch long-throw bass drivers with ELFF technology for extremely low distortion.
Multichannel bass management for stereo, surround, and 7.1.4 configurations.
AES67 Audio-over-IP with dual redundant network ports supporting up to 12 audio channels.
Balanced analog XLR and SUB-D25 connectors for multichannel I/O.
AES3 digital outputs via BNC for distribution to multiple studio monitors.
Auto Standby function for energy-efficient operation.
Support for MA 1 Automatic Monitor Alignment for precise room calibration.

Specifications
Type: Active DSP-controlled subwoofer with AES67 Audio-over-IP
Frequency Response (±6 dB): 16 Hz - 750 Hz
Frequency Response (±3 dB): 18 Hz - 310 Hz
Passband Frequency Response: 20 Hz - 295 Hz (±1.5 dB)
Maximum SPL: 115 dB SPL
Bass Principle: Front-ported bass reflex
Analog Inputs: 2 x balanced XLR, 2 x SUB-D25 up to 12 channels
Analog Outputs: 2 x balanced XLR, 2 x SUB-D25 up to 11 channels
Digital Outputs: 7 x BNC AES3
AES67 Network Connections: 2 x RJ45, redundant, up to 12 channels
DSP Bass Management: Yes, multichannel support
Adjustable Delay: 0 - 115 ms
ADA Latency: 2 ms
Woofer Size: 2 x 265 mm (10")
Power Supply: 100 - 240 V AC, 50/60 Hz
Dimensions (H x W x D): 737 mm x 330 mm x 645 mm
Weight: approx. 44.5 kg