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Description
Powerful Bass Extension for Immersive Systems
The KH 810 II AES67 is the perfect subwoofer for medium sized rooms, providing bass extension with Neumann precision. It includes a unique and flexible Bass Manager for multichannel 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 powerful bass down to 16 Hz
- The perfect complement to mid-size 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
Specifications
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
- Sine wave output (THD < 0.5%, 1 m, half space): 95 dB SPL (42 – 200 Hz)
- Bass capability (max SPL, 3% THD, 1 m, half space, 50–100 Hz avg.): 109 dB
- Max SPL for subwoofers: On floor: 109 dB / Against wall: 112 dB / In corner: 115 dB
- Dolby DARDT™ max SPL (bass managed): 117 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 (114 / 108 / 100 dB SPL, 0 dB gain): 18 dBu (CH 1–3, 12) / 15 dBu (CH 5–11)
- Max input level (94 dB SPL, 0 dB gain): 24 dBu (CH 1–3, 12) / 21 dBu (CH 5–11)
- Absolute max input level: 24 dBu (CH 1–3, 12) / 21 dBu (CH 5–11)
- 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, 2, 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 max 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: 180 W (THD+N 0.1%, limiter active)
- Power supply: SMPS, 100–240 V, 50/60 Hz
- Power consumption: Standby: ≤ 300 mW / Idle (100 V): 33 W / Idle (230 V): 32–33 W / Full output (100–230 V): 240 W / Full output (240 V): 235 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: 265 mm (10") with black metal grille
- Dimensions (H × W × D): 368 × 330 × 645 mm (14.5" × 13" × 25.4")
- External net volume: 78 L
- Weight: 25.5 kg (56 lb 3 oz)
Packaging
- Packed dimensions: 484 × 454 × 749 mm (19.1" × 17.9" × 29.5")
- Packed weight: 31.3 kg
- Packaging weight (incl. cables & manuals): 5.8 kg
- Packed volume: 0.165 m³
Acoustical Axis
- Horizontal: 165 mm
- Vertical (from bottom): 183.5 mm
In the Box
Delivery includes:
- 1x KH 810 II AES67
- 1x Mains cables (EU/KC)
- 1x Getting Started Guide
- 1x Operating Manual