Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Neumann KH 750
Summary of Contents for Neumann KH 750
- Page 1 Active Studio Subwoofer with 2.0 / 0.1 Bass Management™ Instruction Manual georg neumann gmbh · leipziger str. 112 · 10117 berlin · germany publ. 11/21 tel +49 (0)30 / 41 77 24-0 · fax -50 · headoffice@neumann.com · www.neumann.com 592825/a01...
-
Page 2: Table Of Contents
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Routing AES67 audio signals to the KH 750 AES67 . -
Page 3: The Kh 750 Aes67 Subwoofer
This operating manual describes the physical setup and autonomous operation of the KH 750 AES67 . It also describes how to process Audio over IP via AES67 and Ravenna . For the best possible configuration and calibration of the subwoofer we recommend the MA 1 - Automatic Monitor Alignment software . -
Page 4: Product Overview
The current operating manual as well as the quick guide and the safety guide can also be downloaded from the “Downloads” area on the product page at www .neumann .com . Note that imperial dimensions are approximate . Product overview... - Page 5 • red = protection active ANALOG INPUT | RIGHT/B • amber = indication 9 BNC sockets DIGITAL | AES3 INPUT I CONTROL MODE switch DIGITAL | AES3 OUTPUT J CHANNEL B INPUT MODE switch 0 INPUT GROUND LIFT switch KH 750 DSP | 5...
-
Page 6: Installing And Connecting The Kh 750 Aes67
Always have the product mounted by a qualified specialist according to local, national and international regulations and standards . Use the mounting systems recommended by Neumann and always provide sufficient addi- tional protection against tipping or dropping by means of safety wires . -
Page 7: Preparing The Room
. For information on building a balanced system, please refer to the “Product Selection Guide” at www .neumann .com . If several subwoofers are used, they must be controlled parallelly by using Y cables (analog inputs) to feed the signals to all subwoofers . -
Page 8: Positioning The Subwoofers
If you set up several subwoofers, you can utilize their mutual coupling to achieve an acoustical acoustical gain gain . The following acoustical gains are possible: Number of subwoofers Acoustical gain 0 .0 dB 6 .0 dB 9 .5 dB 12 .0 dB KH 750 DSP | 8... -
Page 9: Connecting The Subwoofer
ANALOG and AES3 . If a valid digital AES3 signal is connected to the BNC input, this digital signal is automatically selected . Note: The Neumann .Control iPad® App does not support the KH 750 AES67 subwoofer . Note: If the source equipment is digital, we recommend using digital connections from the source to the subwoofer as this avoids additional unnecessary signal conversions . - Page 10 Connect the digital AES3 or S/P-DIF-output signal of your audio source to the DIGITAL INPUT socket 9 of the respective KH 750 AES67 . See picture below . The KH 750 AES67 subwoofer only supports non-encoded AES3 and S/P-DIF sig- nals .
- Page 11 When using the MA 1 - Automatic Monitor Alignment software the digital inputs of the Neumann studio monitors (KH 120 D, KH 310 D, KH 420 with DIM 1 module) are not sup- ported . For these models, use the analog inputs instead .
- Page 12 AES 67 PRIMARY (Stereo Stream L/R) ANALOG OUTPUT LEFT/A (Stereo Stream L/R) ANALOG OUTPUT LEFT/A ANALOG IN ANALOG IN ANALOG IN ANALOG IN ANALOG OUTPUT RIGHT/B ANALOG OUTPUT RIGHT/B AES 67 SECONDARY (Stereo Stream L/R) KH 750 DSP | 12...
- Page 13 AES 67 PRIMARY (Stereo Stream L/R) (Stereo Stream L/R) ANALOG IN Sub R ANALOG OUTPUT AES 67 SECONDARY RIGHT/B 7 (Stereo Stream L/R) Source Signal: Analog Source Signal: Digital Subwoofer-loudspeaker connections: Digital Subwoofer-loudspeaker connections: Digital KH 750 DSP | 13...
- Page 14 In multichannel systems, stereo pairs of loudspeakers (L/R, Ls/Rs, etc .) can be connected to subwoofers as shown above . For all further channels proceed as follows (not supported by the Neumann .Control iPad® App) . For the Center and Sub/LFE channels, find the correct cabling diagram below depending on your source signal type (analog or digital) .
-
Page 15: Connecting Network Cables
Connecting/disconnecting the subwoofer to/from the mains power supply To connect the KH 750 AES67 to the mains power supply: Make sure that the switch MAINS POWER 3 is set to “OFF” . Connect the IEC connector of the supplied mains cable to the IEC mains socket 4 . -
Page 16: Configuring And Using The Kh 750 Aes67
Configuring and using the KH 750 AES67 Switching the subwoofer on/off You can switch the KH 750 AES67 on and off using the switch MAINS POWER 3. Set the switch MAINS POWER 3 to: On/off switching using the switch • “ON” to switch the subwoofer on . -
Page 17: Input Select Switch
If the INPUT SELECT switch G has been set to ANALOG and AES3, only the XLR and BNC inputs are active . The KH 750 AES67 will switch to standby after 90 minutes without an input signal . The priority is on the digital BNC input . -
Page 18: Calibrating The Subwoofer
. Follow the instructions during the alignment pro- cess . Observe the following requirements: Hardware: • KH 750 AES67 subwoofer in combination with a pair of KH DSP loudspeakers or a pair of analog KH loudspeakers • Neumann MA 1 measurement microphone •... - Page 19 Neumann loudspeaker: INPUT GAIN: “0 dB” and OUTPUT LEVEL: “100 dB SPL at 1 m for 0 dBu” . For information on how to set your Neumann loudspeaker, please refer to its operating manual . If the mentioned values cannot be set on your loudspeaker, adjust the subwoofer accordingly .
-
Page 20: Compensating For Larger Time Of Flight (Tof) Differences
EQ setting . Calibration using the backplate controls and Neumann test signals Download the Neumann test signals and the instructions for use (PDF file, in English) from the KH 750 AES67 product page at www .neumann .com . -
Page 21: Remote-Controlling The Bass Management
(console or external), or by setting an appropriate output level on the subwoofer . Connect the LFE channel to the socket INPUT | B 9 of the KH 750 AES67 or to channel 2 when connected via AES67 . -
Page 22: Activating Ground Lift
. Never disconnect the earth pin of the mains cable from ground . Even when ground lift is activated, the pin 1 of all audio inputs remain electronically connected to each other . KH 750 DSP | 22... -
Page 23: Configuring Aes67 Network And Audio Settings
• In NETWORK CONTROL mode, the backplate controls and switches marked with “*” are dis- abled and all settings are configured using the MA 1 - Automatic Monitor Alignment software . For more information on the two control modes of the KH 750 AES67 refer to chapter “CONTROL MODE switch” on page 17 . -
Page 24: Setting Up The Aes67 Network Interface
Setting up the AES67 network interface The KH 750 AES67 features a fully redundant network interface according to ST 2022-7 and can be operated in redundant or non-redundant mode . The factory default setting is non-redun- dant . The network interface configuration can be accessed via the built-in web interface of the AES67 port . - Page 25 Accessing the network interface via a web browser To access the built-in web interface of the KH 750 AES67, the PC or Mac you are using needs to be set to the same IP address and subnet range as the KH 750 AES67 .
- Page 26 Setting up IP addresses and network redundancy Depending on the mode you will be using (redundant/non-redundant) and your existing net- work configuration you can change the IP addresses of the KH 750 AES67 according to your requirements . The first three necessary steps in the initial configuration are •...
- Page 27 The AES67 configuration screen will be displayed . Select the desired redundancy mode from the dropdown menu in the Settings tab on the left . The default redundancy mode is non-redundant . Click on Update Redun Mode to save the changes . KH 750 DSP | 27...
-
Page 28: Setting Up The Ptp Media Clock
PTP media clock . Setting up the PTP media clock sync To set up the PTP media clock: Open the web interface of the KH 750 AES67 . Navigate to the AES67 SYNC menu item in the menu on the left . -
Page 29: Setting Up The Connection Management Mode
NMOS protocol . The factory default is ANEMAN . Both protocols can also be disabled . Please note that ANEMAN and NMOS cannot be used simultaneously . Changing the connection management mode requires a reboot of the KH 750 AES67 . Setting up the ANEMAN/Ravenna connection management... - Page 30 Reboot Device . Setting up the NMOS connection management The KH 750 AES67 supports connection management via the NMOS protocol . It features AMWA IS-04 NMOS Discovery and Registration as well as AMWA IS-05 NMOS Device Connection Man- agement: • 8855 for IS-04: “node_port”: 8855 •...
-
Page 31: Routing Aes67 Audio Signals To The Kh 750 Aes67
The KH 750 AES67 will work with any of the Neumann studio monitors, such as KH 80 DSP, KH 120 A, KH 310 and KH 420 . The use of the KH 750 AES67 will integrate your studio monitors into your AES67 network, while providing the bass management for your speakers . - Page 32 Routing audio to the KH 750 AES67 There are multiple ways for the user to make AES67 audio connections (routing) . Audio routing can be done via the web interface of the KH 750 AES67, with the ANEMAN Control Software or using the NMOS protocol .
- Page 33 Routing with RX STREAMS To establish a connection: Open the web interface of the KH 750 AES67 . Navigate to the RX STREAMS menu item in the menu on the left . Click on the icon next to the the title AES67 RX Streams .
- Page 34 Routing with RX STREAMS using an SDP file To establish a connection: Obtain the SDP file of the AES67 audio stream . Open the web interface of the KH 750 AES67 . Navigate to the RX STREAMS menu item in the menu on the left .
- Page 35 Technologies on how to install plug-ins in the ANEMAN software . To establish a connection: In the web interface of the KH 750 AES67, enable ANEMAN Connection Management in the AES67 CONFIG menu item (see “Setting up the ANEMAN/Ravenna connection management”...
-
Page 36: Compatibility With Dante® Aes67 Audio Streams
This will enable the reception and discovery of AES67 streams generated by a DANTE® inter- face . Routing (reception) of the stream can be done either with ANEMAN or via the KH 750 AES67 RX PATCH or RX STREAMS . -
Page 37: Cleaning And Maintaining The Subwoofer
To remove a connection: Open the web interface of the KH 750 AES67 . Navigate to the RX STREAMS menu item in the menu on the left . The table in the centre of the page will show the current routed audio . -
Page 38: Troubleshooting
Connect the loudspeakers via the digitally connected loudspea- support the digital outputs . analog outputs instead . kers . For further information, please refer to the “Questions & Answers” section at www .neumann .com . KH 750 DSP | 38... -
Page 39: Specifications
Specifications For a complete list of the product specifications please refer to the product page of the KH 750 AES67 at www .neu- mann .com . Product properties Mains voltage 100 to 240 V ~, 50/60 Hz Power consumption (idle / standby) 18 W / 0 .3 W... -
Page 40: Technical Information & Glossary
. The acoustical axis is located at the midpoint of the KH 750 AES67’s bass driver . Note that the subwoofer emits very low frequencies which are emitted omnidirectionally . That is why the orientation of the subwoofer cabinet in the room does not matter . - Page 41 SPL at 1 m Acoustical Neumann subwoofers are designed to have a flat pass band magnitude response in anechoic condi- response tions when all the acoustical controls are set to 0 dB . When a subwoofer is installed into a listening environment the response changes and thus should be corrected back to a flat response .
- Page 42 Signal rout- For both analog and digital signals, the KH 750 AES67 has two input and two output channels: LEFT / A and RIGHT / B . After the electronically balanced or digital input stages, there are two 4th order 80 Hz high pass filters for the main channels followed by two electronically balanced and digital output stages .
Need help?
Do you have a question about the KH 750 and is the answer not in the manual?
Questions and answers