NEUMANN KH 870 II AES67

Name: NEUMANN KH 870 II AES67
Brand: Neumann
SKU: ne.kh870iiaes67
Price: 4931.5 EUR
Availability: InStock

€ 5.123,14

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€ 4.931,50

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SKU: ne.kh870iiaes67

Brand: Neumann

Categories:

Headphones & Speakers, Neumann

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Description
Specifications
In the Box

Powerful Reference-Quality Sub for Immersive Systems

The KH 870 II AES67 is the perfect subwoofer for larger rooms, providing powerful bass extension with Neumann precision. It includes a unique and flexible Bass Manager for stereo, surround and immersive systems up to 7.1.4. Analog and AES3 outputs (BNC) for up to 11 studio monitors as well as redundant AES67 network connectivity allow for flexible connectivity.

Next Generation Subwoofer

The KH 810 II AES67 improves on its predecessor in acoustic performance and adds new features. Thanks to a novel long-throw 10” woofer with Extremely Linear Force Factor (ELFF™) technology and intelligent protection limiters, the KH 810 II ensures exceptionally low distortion even at maximum SPLs.

The KH 810 II AES67 extends low frequency reproduction down to 16 Hz and delivers about twice the output of the KH 750 DSP. This makes the KH 810 II AES67 the perfect complement to mid-sized speakers such as the KH 150 and KH 310.

The KH 810 II AES67 is DSP-controlled for superior sonic performance and seamless integration via MA 1 Automatic Monitor Alignment (sold separately). When combined with analog Neumann studio monitors such as the KH 120 A (discontinued), KH 310, or KH 420, it offers sufficient DSP-power for aligning an entire stereo, surround or even immersive system up to 7.1.4, using MA 1, optimizing not only the frequency response but also the phase. Of course, the KH 810 II AES67 is also a perfect complement to Neumann’s new DSP-equipped studio monitors. In surround and immersive systems, analog and DSP-equipped Neumann speakers can be combined and room-aligned using MA 1 with Multichannel Extension (sold separately). The KH 810 II AES67 is therefore much more than “just” a subwoofer: It is the perfect tool for upgrading existing systems and/or extending them for immersive audio.

With its redundant AES67 connectivity, this subwoofer is a complete solution for integrating your entire loudspeaker setup into your Audio over IP infrastructure. The KH 870 II AES67 accepts up to 12 channels of network audio to be reproduced by the subwoofer itself and up to 11 studio monitors connected to its analog and digital outputs.

Precision in Every Detail

As subwoofers are typically placed on the floor, a robust grille protects the driver from accidental damage. The rigid cabinet features a highly efficient bass reflex system, which is carefully engineered and tuned for the tightest bass reproduction – with inaudible port noise.

Two analog XLR inputs and outputs are available to connect the subwoofer for stereo operation. For multichannel operation, the KH 810 II AES67 offers two Sub D25 connectors for analog connection as well as seven AES3 outputs (BNC) for digital connection to 11 studio monitors. All analog inputs and outputs are electronically balanced. The AES3 outputs (BNC) are compatible to S/P-DIF inputs on Neumann studio monitors using a BNC to RCA cable.

Two network ports offer redundant AES67 audio-over-IP connectivity with up to 12 input channels. The KH 810 II AES67 can thus be used as a hub, accepting multichannel audio which is distributed to the entire system using analog or AES3 (BNC) connections to up to 11 additional speakers, including its internal bass management.

The KH 810 II AES67 excels in music, film scoring, broadcast, and post-production studios for tracking, mixing, and mastering. Thanks to a novel power amp design, the KH 810 II combines superior audio performance with excellent energy efficiency. Its Auto Standby function can be deactivated in the MA 1 app.

FEATURES:

Deep and extremely powerful bass down to 16 Hz
The perfect complement to mid-size and large Neumann KH line studio monitors
DSP-controlled for superior sonics and unparalleled precision
Room correction via MA 1 Automatic Monitor Alignment (sold separately)
Supports automatic alignment also for analog KH-line studio monitors (patented)
Redundant AES67 audio network connectivity, multichannel signal distribution

Acoustics

Free field frequency response (±6 dB): 16 – 750 Hz
Free field frequency response (±3 dB): 18 – 310 Hz
Frequency response ripple: 20 – 295 Hz, ±1.5 dB
Self-generated noise (10 cm, input gain 100 dB SPL @ 0 dBu): < 20 dB(A) SPL
Minimal self-generated noise (10 cm): < 20 dB(A) SPL
Sine wave output (THD < 0.5%, 1 m, half space): 95 dB SPL (33 – 200 Hz)
Bass capability (max SPL, 3% THD, 1 m, half space, 50–100 Hz avg.): 114.9 dB
Max SPL for subwoofers: On floor: 114.9 dB / Against wall: 117.9 dB / In corner: 120.9 dB
Dolby DARDT™ max SPL (bass managed): 123 dB SPL
Acoustical principle: Bass reflex, front ports

Analog Inputs and Outputs

Analog inputs: 2 × XLR, electronically balanced
Input impedance: > 12 kΩ
Max input level: 24 dBu (CH 1–3, 12) / 21 dBu (CH 5–11)
Common mode rejection ratio (CMRR, XLR / Sub-D): > 56 dB @ 15 kHz
Crosstalk (1 kHz, level matching): –90 dB; ±0.1 dB
Remote volume control: via MA 1 software
Volume control range: 0 … –∞ dB
Volume control resolution: 0.1 dB
Analog dynamic range (A-D-A, THD+N): 120 dB(A) (CH 1–3, 12) / 116 dB(A) (CH 5–11) / < 0.003% (–90 dB)
Signal routing modes: Analog
Analog outputs: 2 × XLR, electronically balanced / 1 × Sub-D 25: 7 × electronically balanced / 1 × Sub-D 25: 4 × electronically balanced

Digital Inputs and Outputs

Digital inputs: 1 × BNC (daisychain in) / 1 × Ethernet (primary AoIP) / 1 × Ethernet (secondary AoIP)
Digital outputs: 7 × BNC (11 × monitor out) / 1 × BNC (daisychain out)
Converter resolution: 24 bit
Converter sampling rate: 32 – 200 kHz
Internal sampling rate: 48 kHz
Output sampling rate: 48 kHz
Dynamic range A-D: 124 dBA (CH 1, 2)
Dynamic range A-D-A: 121.5 dBA (CH 1, 2)
Dynamic range D-A: 125 dBA (CH 1–3, 12) / 118 dBA (CH 5–11)
Digital sensitivity: –18 dBFS = 100 dB SPL @ 1 m
Latency: 2 ms (A-D-A) / 4 ms (D-A AES67)
User adjustable delay range: 0 – 115 ms
Delay resolution: Time: 20.8 µs / Distance: 0.71 mm (0.28")
Lip sync delay: 2 frames (40 ms) / 2.75 frames (33 ms)
Time-of-flight maximum distance: FW based, up to 115 ms

User Interface

Status indication: Illuminated Neumann logo
Input select: Analog / AES67
Ground lift: Yes
Control: Local / Network
Mains switch: Yes
Mains voltage: 100 – 240 V (universal power supply)

Electronics – Controller

Controller design: Digital, active
DSP resolution: 32-bit audio, 64-bit double-precision processing
Crossover frequency: 80 Hz
Crossover slope: 24 dB/oct, 4th order
Automatic room calibration (MA 1): Yes
FIR phase linearization: Yes (with MA 1)
Protection circuitry: Soft clip / Peak and thermal limiters / Woofer excursion limiter / Electronics and amplifier thermal limiter
Remote control: via Ethernet and MA 1
Logo display states: Normal operation: White / Identification: Rosé / Limit / Clip / Error / Protection / Mute: Red
Logo brightness: Adjustable via MA 1

AES67 / Audio over IP

Interface: Fully redundant AES67 / ST 2110 compliant
Network ports: 2 × Fast Ethernet (100Base-TX, RJ-45)
Network redundancy: ST 2022-7
Input word length: 24 bit
Input sampling rates: 44.1 / 48 / 88.2 / 96 kHz
Connection management: RAVENNA, NMOS IS-04 & IS-05
Packet times: 125 µs, 1 ms
PTP profiles: IEEE 1588 Default / AES67 PTP Media / IEEE 802.1AS (AVB) / SMPTE ST 2059-2
Transport: Multicast, Unicast
SMPTE ST 2110-30: Yes (dual network ports)
SDP transport: Manual, SAP, RAVENNA
Discovery: SAP, mDNS, NMOS IS-04, RAVENNA

Amplifiers and Power Supply

Woofer amplifier output power: 360 W (THD+N 0.1%, limiter active)
Power supply: SMPS, 100–240 V, 50/60 Hz
Power consumption: Standby: ≤ 300 mW / Idle (100 / 230 V): 37 W / Idle (230 V): 36 W / Full output (100 V): 485 W / Full output (230 V): 462 W
Standby mode: Disabled or automatic (20 min default)
Amplifier standby: User definable via software

Mechanics

Cabinet material: Wood cabinet, aluminum electronics panel
Finish and color: Front: Metallic anthracite (RAL 7021) / Back: Black (RAL 9005)
Operating conditions: +10 °C to +40 °C; <75% RH
Storage/transport conditions: –25 °C to +60 °C; <90% RH
Woofer: 2 × 265 mm (10") with black metal grille
Mounting points: 35 mm flange (top panel)
Dimensions (H × W × D): 737 × 330 × 645 mm
External net volume: 157 L
Weight: 44.5 kg

Packaging

Packed dimensions: 839 × 454 × 749 mm
Packed weight: 51.2 kg
Packaging weight (incl. cables & manuals): 6.7 kg
Packed volume: 0.285 m³

Acoustical Axis

Horizontal: 165 mm
Vertical (from bottom): 365 mm

Delivery includes:

KH 870 II AES67
Mains cables (EU/KC, UK, US, China)
Getting Started Guide
Operating Manual

NEUMANN KH 870 II AES67

Description

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