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Neumann KH 810 II AES67 10" Active Studio Subwoofer

Neumann KH 810 II AES67 10" Active Studio Subwoofer

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  • Features
  • Tech Specs
  • Reviews

 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. 

More Information
Product Name Neumann KH 810 II AES67 10" Active Studio Subwoofer
Brand Neumann
Condition New
MPN 700283
UPC 615104387584
Shipping Option Free Shipping on orders over $94.72

What's in the Box?

  • Neumann KH 810 II AES67 10" Active Studio Subwoofer
  • 4 x Mains Cable

(1) Ultra stiff wooden cabinet 

  • Tough painted finish and build-in rubber feet for acoustic isolation 
  • Excellent self-damping properties leading to minimal cabinet resonances 
  • No standing wave resonances inside cabinet 
  • Ultra tight bass reproduction due to very low group delay

(2) In-house modelled long-throw bass driver with Extremely Linear Force Factor™
(ELFF™) and robust resonance optimized basket 

  • Damping of break up modes brings low distortion at high sound levels 
  • Extremely linear force factor provides low harmonic distortion even at high excursions 
  • Reduced air noise and improved rocking modes 
  • Grille protects against mechanical damage

(3) XLR electronically balanced analog inputs and outputs (stereo) 

  • Standard interfacing to professional equipment 
  • Daisy chain input and output for subwoofer arrays

(4) Two electronically balanced SUB-D 25 connectors for up to 11 analog output channels. The pinout follows the Tascam standard. 
 

(5) Digital outputs (multichannel) 

  • 192 kHz, 24-bit conversion 
  • 7x BNC: Channels 1-3, Channels 5-12, Daisy Chain Out

(6) Redundant AES67 audio network ports that are fully compliant with broadcast standards such as ST 2110, ST 2022-7 redundancy, and RAVENNA.

  • Also compatible with DANTE®-generated AES67 network streams. Network connection is required for control via MA 1 Automatic Monitor Alignment software.

(7) Control function 

  • Toggle switch for selection of two completely independent modes of operation and calibration: on the device or via the network using the MA 1 -Automatic Monitor Alignment software.

(8) Universal switched-mode power supply (100 … 240 V) 

  • One version works in any country and is robust to poor quality mains supply

(9) Ground lift to overcome ground loops 

  • Inputs with very high CMRR to reduce noise induced by long cables in electrically noisy environments 
  • Completely symmetrical internal signal flow to avoid electrical interferences

(10) Low heat dissipation amplifiers with large headroom and sophisticated protection circuitry 

  •  Improved transient response 
  • Assured reliability and safety 
  • Separate thermo limiter to protect the voice coil and power amplifier

Soft clip and excursion limiters 

  • Increases system reliability 
  • Allows extraction of the maximum performance from the system

(11) Standby function 

  • Reduces power consumption when product is not in use. 

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) <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) 109 dB (50–100 Hz average)
Max SPL (Subwoofer placement) 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 (varies by SPL / channel) 114 dB SPL: 18 dBu (CH 1–3,12); 15 dBu (CH 5–11)
108 dB SPL: 18 dBu (CH 1–3,12); 15 dBu (CH 5–11)
100 dB SPL: 18 dBu (CH 1–3,12); 15 dBu (CH 5–11)
94 dB SPL: 24 dBu (CH 1–3,12); 21 dBu (CH 5–11)
Max input: 24 dBu (CH 1–3,12); 21 dBu (CH 5–11)
CMRR (XLR / Sub-D) >56 dB @ 15 kHz
Crosstalk (1 kHz) -90 dB; ±0.1 dB
Remote volume control Via MA 1 software
Volume control range / resolution 0 … -∞ dB; 0.1 dB steps
Analog dynamic range / 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 (balanced)
1 × SUB-D 25: 7 × balanced
1 × SUB-D 25: 4 × 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 × Daisy chain out
Converter resolution 24-bit
Supported sampling rates 32 – 200 kHz
Internal / Output sampling rate 48 kHz / 48 kHz
Dynamic range A-D: CH 1–2 = 124 dB(A)
A-D-A: CH 1–2 = 121.5 dB(A)
D-A: CH 1–2,3,12 = 125 dB(A); CH 5–11 = 118 dB(A)
Digital sensitivity -18 dBFS = 100 dB SPL @ 1 m
Latency 2 ms (A-D-A)
4 ms (D-A AES67)
User adjustable delay 0 – 115 ms
Resolution: 20.8 µs; 0.71 mm (0.028")
Max AV sync: 2 frames (40 ms); 2.75 frames (33 ms)

User Interface

Status indication Illuminated Neumann logo
Input select Analog / AES67
Ground lift Yes
Control Local; Network
Mains switch Yes
Logo brightness Adjustable via MA 1 software

Electronics – Controller

Controller design Digital; active
DSP resolution 32-bit audio, 64-bit double precision processing
Crossover frequency / slope 80 Hz / 24 dB per octave, 4th order
Room calibration (MA 1) Yes; Subwoofer and connected analog loudspeakers
FIR phase linearization For connected loudspeakers (via MA 1)
Protection circuitry Soft clip, peak and thermal limiters; woofer excursion limiter; PSU/electronics/amplifier protection
Remote control Via Ethernet and MA 1
Display (status) White = normal
Rosé = identification
Red = limit/clip/errors/protection/mute

AES67

Audio-over-IP interface Fully redundant AES67 ST2110 compliant; 2 × Fast Ethernet 100Base-TX RJ45 (IEEE 802.3); physical redundancy (ST 2022-7)
Word length 24-bit
Supported sample rates 44.1 / 48 / 88.2 / 96 kHz
Connection management RAVENNA, NMOS IS-04 & IS-05
Packet times 125 µs, 1 ms
PTP profiles IEEE1588 Default, AES67 PTP Media, IEEE 802.1AS (AVB), SMPTE ST 2059-2
Transport Multicast, Unicast
SMPTE ST 2110-30 Yes, dual ports
Discovery / SDP transport SAP, mDNS, NMOS IS-04, RAVENNA (RTSP URI)

Electronics – Amplifiers and Power Supply

Output power (woofer amp) 180 W (THD+N ≤0.1%, limiter active)
Power supply SMPS, 100–240 V, 50/60 Hz
Power consumption Standby: ≤300 mW
Idle: 32–33 W
Full output (100 V): 240 W
Full output (230 V): 240 W
Full output (240 V): 235 W
Standby Automatic after 20 minutes (default), user definable

Mechanics

Cabinet material Wood with aluminum electronics panel
Finish / color Painted; Metallic Anthracite (RAL 7021) / Black (RAL 9005)
Operating conditions +10° C to +40° C (+50° F to +104° F); <75% RH, non-condensing
Storage conditions -25° C to +60° C (-13° F to +140° F); <90% RH, non-condensing
Woofer 265 mm (10") with black metal grille
Product dimensions (H × W × D) 368 × 330 × 645 mm (14.5" × 13" × 25.4")
External net volume 78 liters
Product weight 25.5 kg (56 lbs 3 oz)
Packed dimensions (H × W × D) 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
Delivery includes KH 810 II AES67 Subwoofer
Mains cables (EU/KC, UK, US, China)
Getting Started Guide
Operating Manual
Acoustical axis (horizontal / vertical) 165 mm / 183.5 mm (from bottom)

Neumann KH 810 II AES67 10" Active Studio Subwoofer

Details

 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. 

More Information
Product Name Neumann KH 810 II AES67 10" Active Studio Subwoofer
Brand Neumann
Condition New
MPN 700283
UPC 615104387584
Shipping Option Free Shipping on orders over $94.72

What's in the Box?

  • Neumann KH 810 II AES67 10" Active Studio Subwoofer
  • 4 x Mains Cable
Features

(1) Ultra stiff wooden cabinet 

  • Tough painted finish and build-in rubber feet for acoustic isolation 
  • Excellent self-damping properties leading to minimal cabinet resonances 
  • No standing wave resonances inside cabinet 
  • Ultra tight bass reproduction due to very low group delay

(2) In-house modelled long-throw bass driver with Extremely Linear Force Factor™
(ELFF™) and robust resonance optimized basket 

  • Damping of break up modes brings low distortion at high sound levels 
  • Extremely linear force factor provides low harmonic distortion even at high excursions 
  • Reduced air noise and improved rocking modes 
  • Grille protects against mechanical damage

(3) XLR electronically balanced analog inputs and outputs (stereo) 

  • Standard interfacing to professional equipment 
  • Daisy chain input and output for subwoofer arrays

(4) Two electronically balanced SUB-D 25 connectors for up to 11 analog output channels. The pinout follows the Tascam standard. 
 

(5) Digital outputs (multichannel) 

  • 192 kHz, 24-bit conversion 
  • 7x BNC: Channels 1-3, Channels 5-12, Daisy Chain Out

(6) Redundant AES67 audio network ports that are fully compliant with broadcast standards such as ST 2110, ST 2022-7 redundancy, and RAVENNA.

  • Also compatible with DANTE®-generated AES67 network streams. Network connection is required for control via MA 1 Automatic Monitor Alignment software.

(7) Control function 

  • Toggle switch for selection of two completely independent modes of operation and calibration: on the device or via the network using the MA 1 -Automatic Monitor Alignment software.

(8) Universal switched-mode power supply (100 … 240 V) 

  • One version works in any country and is robust to poor quality mains supply

(9) Ground lift to overcome ground loops 

  • Inputs with very high CMRR to reduce noise induced by long cables in electrically noisy environments 
  • Completely symmetrical internal signal flow to avoid electrical interferences

(10) Low heat dissipation amplifiers with large headroom and sophisticated protection circuitry 

  •  Improved transient response 
  • Assured reliability and safety 
  • Separate thermo limiter to protect the voice coil and power amplifier

Soft clip and excursion limiters 

  • Increases system reliability 
  • Allows extraction of the maximum performance from the system

(11) Standby function 

  • Reduces power consumption when product is not in use. 
Tech Specs

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) <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) 109 dB (50–100 Hz average)
Max SPL (Subwoofer placement) 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 (varies by SPL / channel) 114 dB SPL: 18 dBu (CH 1–3,12); 15 dBu (CH 5–11)
108 dB SPL: 18 dBu (CH 1–3,12); 15 dBu (CH 5–11)
100 dB SPL: 18 dBu (CH 1–3,12); 15 dBu (CH 5–11)
94 dB SPL: 24 dBu (CH 1–3,12); 21 dBu (CH 5–11)
Max input: 24 dBu (CH 1–3,12); 21 dBu (CH 5–11)
CMRR (XLR / Sub-D) >56 dB @ 15 kHz
Crosstalk (1 kHz) -90 dB; ±0.1 dB
Remote volume control Via MA 1 software
Volume control range / resolution 0 … -∞ dB; 0.1 dB steps
Analog dynamic range / 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 (balanced)
1 × SUB-D 25: 7 × balanced
1 × SUB-D 25: 4 × 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 × Daisy chain out
Converter resolution 24-bit
Supported sampling rates 32 – 200 kHz
Internal / Output sampling rate 48 kHz / 48 kHz
Dynamic range A-D: CH 1–2 = 124 dB(A)
A-D-A: CH 1–2 = 121.5 dB(A)
D-A: CH 1–2,3,12 = 125 dB(A); CH 5–11 = 118 dB(A)
Digital sensitivity -18 dBFS = 100 dB SPL @ 1 m
Latency 2 ms (A-D-A)
4 ms (D-A AES67)
User adjustable delay 0 – 115 ms
Resolution: 20.8 µs; 0.71 mm (0.028")
Max AV sync: 2 frames (40 ms); 2.75 frames (33 ms)

User Interface

Status indication Illuminated Neumann logo
Input select Analog / AES67
Ground lift Yes
Control Local; Network
Mains switch Yes
Logo brightness Adjustable via MA 1 software

Electronics – Controller

Controller design Digital; active
DSP resolution 32-bit audio, 64-bit double precision processing
Crossover frequency / slope 80 Hz / 24 dB per octave, 4th order
Room calibration (MA 1) Yes; Subwoofer and connected analog loudspeakers
FIR phase linearization For connected loudspeakers (via MA 1)
Protection circuitry Soft clip, peak and thermal limiters; woofer excursion limiter; PSU/electronics/amplifier protection
Remote control Via Ethernet and MA 1
Display (status) White = normal
Rosé = identification
Red = limit/clip/errors/protection/mute

AES67

Audio-over-IP interface Fully redundant AES67 ST2110 compliant; 2 × Fast Ethernet 100Base-TX RJ45 (IEEE 802.3); physical redundancy (ST 2022-7)
Word length 24-bit
Supported sample rates 44.1 / 48 / 88.2 / 96 kHz
Connection management RAVENNA, NMOS IS-04 & IS-05
Packet times 125 µs, 1 ms
PTP profiles IEEE1588 Default, AES67 PTP Media, IEEE 802.1AS (AVB), SMPTE ST 2059-2
Transport Multicast, Unicast
SMPTE ST 2110-30 Yes, dual ports
Discovery / SDP transport SAP, mDNS, NMOS IS-04, RAVENNA (RTSP URI)

Electronics – Amplifiers and Power Supply

Output power (woofer amp) 180 W (THD+N ≤0.1%, limiter active)
Power supply SMPS, 100–240 V, 50/60 Hz
Power consumption Standby: ≤300 mW
Idle: 32–33 W
Full output (100 V): 240 W
Full output (230 V): 240 W
Full output (240 V): 235 W
Standby Automatic after 20 minutes (default), user definable

Mechanics

Cabinet material Wood with aluminum electronics panel
Finish / color Painted; Metallic Anthracite (RAL 7021) / Black (RAL 9005)
Operating conditions +10° C to +40° C (+50° F to +104° F); <75% RH, non-condensing
Storage conditions -25° C to +60° C (-13° F to +140° F); <90% RH, non-condensing
Woofer 265 mm (10") with black metal grille
Product dimensions (H × W × D) 368 × 330 × 645 mm (14.5" × 13" × 25.4")
External net volume 78 liters
Product weight 25.5 kg (56 lbs 3 oz)
Packed dimensions (H × W × D) 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
Delivery includes KH 810 II AES67 Subwoofer
Mains cables (EU/KC, UK, US, China)
Getting Started Guide
Operating Manual
Acoustical axis (horizontal / vertical) 165 mm / 183.5 mm (from bottom)
Reviews