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Neumann.Berlin KH 150, Инструкция по эксплуатации

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KH 150 AES67  |  

14

Adapting loudspeakers to the environment using the 

switches on the backplate

When the switches BASS, LOW-MID and HI on the ACOUSTICAL CONTROLS panel are set to 0, 
the loudspeaker is designed to have a flat frequency response in anechoic conditions . 

The frequency response will change in your monitoring environment . The loudspeaker’s fre-
quency response will also change based on its position in the room . The same loudspeaker 
installed in different positions in the same room may require different acoustical control set-
tings . In a symmetrical installation, left/right pairs (front or back) will probably have the same 
acoustical settings .

 

X

Before using your loudspeaker system for the first time, align the frequency response of the 
loudspeakers in the room in order to obtain the desired transfer behavior .

 

X

Repeat the above step if you change the physical conditions in your studio . 

 

X

At your listening position, determine the frequency response of each loudspeaker .

These switches are not intended for adjusting the sound to your preferences during 
playback . They are used to adapt the loudspeaker to the acoustical conditions of the 
room and the position in the room to provide as neutral a response as possible .

Switch

Function

Possible settings

BASS

Compensates for acoustical loading in the 
low frequency range due to nearby large 
solid boundaries (e .g . walls) .

0, -2, -4, -6 dB

LOW-MID

Compensates for acoustical loading in the 
low-mid frequency range due to large, 
reflecting objects (e .g . mixing consoles, 
tables or screens) in the vicinity of the 
loudspeaker .

0, -2, -4, -6 dB

HI

Compensates for insufficient or excessive 
high-frequency damping in the room .

+1, 0, -1, -2 dB

The following settings can be used as a starting point for further adjustment:

Loudspeaker position

Switch
BASS

LOW-MID

HI

In a corner

-6 dB

-2 dB

—

Next to an acoustically solid wall 
(e .g . brick, concrete)

-4 dB

—

—

Next to an acoustically soft wall (e .g . 
drywall)

-2 dB

—

—

Free standing in an untreated room

-2 dB

—

-1 dB

Free standing in a well-treated room

—

—

—

In a small room with strong side wall 
reflections

-4 dB

0 dB

—

Near a small desktop or small reflecting 
surface*

—

-2 dB

—

Near a large desktop or large reflecting 
surface*

—

-4 dB

—

*Use these settings in addition to one of the top settings .

114

108
100

94

*BASS

*LOW-MID

*HI

0

-2
-4
-6

0

-2
-4
-6

1

0

-1

-2

ACOUSTICAL CONTROLS [dB]

*OUTPUT LEVEL

EN

Содержание KH 150

Страница 1: ...rg neumann gmbh Leipziger str 112 10117 berlin germany tel 49 0 30 417724 0 fax 50 headoffice neumann com www neumann com Publ 06 22 592888 A01 kh 150 aes67 Two way active loudspeaker Instruction manu...

Страница 2: ...ing the loudspeaker settings 13 Firmware update 13 Adapting loudspeakers to the environment using the switches on the backplate 14 Adjusting the acoustical level 15 Configuring standby mode 16 Customi...

Страница 3: ...k streams Depending on the size Neumann s two way loudspeaker systems are designed for use as near field monitors or as rearward or ceiling mounted loudspeakers in larger multi channel sys tems They c...

Страница 4: ...ECTRICSHOCK DONOTOPEN RISQUEDECHOC LECTRIQUE NEPASOUVRIR DIGITAL S PDIF INPUT OUTPUT ON OFF ANALOG INPUT Max input level 24 dBu electronically balanced 100 240 V 50 60 Hz Max Power Consumption 320 W M...

Страница 5: ...p loudspeakers please refer to the Questions Answers section on the product page at www neumann com For more information on building systems using Neumann loudspeaker products please refer to the Prod...

Страница 6: ...r loudspeakers by 30 s cm The MA 1 Automatic Monitor Alignment software automatically compensates for different dis tances between the loudspeakers and the listening position X Arrange the loudspeaker...

Страница 7: ...LECTRIQUE NEPASOUVRIR DIGITAL AES3id INPUT OUTPUT ON OFF ANALOG INPUT Max input level 24 dBu electronically balanced 100 240 V 50 60 Hz Max Power Consumption 320 W MANUFACTURER GEORG NEUMANN GMBH Lei...

Страница 8: ...is not required because loudspeakers are not audio sources and the con verters are clocked to a very stable internally generated clock source If the signal source is based on internal digital signal p...

Страница 9: ...SELECT switch S PDIF R left loudspeaker INPUT SELECT switch S PDIF L The settings of the first loudspeaker in the signal chain are not looped through to the second loudspeaker Each loudspeaker must be...

Страница 10: ...GEORG NEUMANN GMBH Leipziger Str 112 10117 Berlin DESIGNED IN GERMANY MADE IN CZECH REPUBLIC Max input level 1 2 V pk pk unbalanced KH 120 II TWO WAY ACTIVE LOUDSPEAKER HIGH RESOLUTION NETWORK CONTROL...

Страница 11: ...eaker switched on and ready for operation can be dimmed using MA 1 Automatic Monitor Alignment software Solid white MA 1 Automatic Monitor Alignment software is saving the changes to the loudspeaker S...

Страница 12: ...ELECT The INPUT SELECT switch toggles between the analog input and the digital inputs Set the INPUT SELECT switch to ANALOG if you intend to feed an analog signal into the XLR socket labeled ANALOG IN...

Страница 13: ...tor Alignment software to configure the loudspeaker beyond what is available on the backplate To reset these internal loudspeaker parameters to the factory settings X Set the INPUT SELECT switch to AN...

Страница 14: ...playback They are used to adapt the loudspeaker to the acoustical conditions of the room and the position in the room to provide as neutral a response as possible Switch Function Possible settings BAS...

Страница 15: ...No defined reference levels If the Neumann logo flashes red the loudspeaker s protection system has been activated To avoid this and achieve the desired output level use larger loudspeakers or add a b...

Страница 16: ...threshold is 20 dB SPL at a distance of 1 m in free field conditions Even if there is no input signal however interference and crosstalk in the signal source or input line can cause the loudspeaker t...

Страница 17: ...rophone and analyze the recording X Try to find out whether switching other devices in the house on or off has an effect e g refrigerator or similar You can check that the standby feature is working c...

Страница 18: ...ssure level above the standby threshold In general you should set the loudspeaker level as low as possible e g the INPUT GAIN knob to 0 the OUTPUT LEVEL switch to 94 or 100 dB SPL and the level of you...

Страница 19: ...made using the MA 1 Automatic Monitor Alignment soft ware For more information on the two loudspeaker control modes refer to the chapter CON TROL on page 12 Setting the control mode for initial setup...

Страница 20: ...on redundant primary interface eth0 is assigned and only used in non redundant mode This port is used by the AES67 audio and the MA 1 Automatic Monitor Alignment software PC Mac The factory default is...

Страница 21: ...ation CLOUD Summary of all discovered Ravenna devices in the network You can also reach the web interface of each of the discovered devices from here RX PATCH Routing matrix for receiving audio signal...

Страница 22: ...sting the IP addresses and rebooting the loudspeaker you might need to re adjust the IP settings of your PC Mac according to the new primary addresses in order to access the web interface for future c...

Страница 23: ...our requirements X Set the IP addresses for eth0 and eth1 10 in separate IP ranges for redundant operation X Click Apply to save the changes To set up the network redundancy mode X In the web interfac...

Страница 24: ...ac according to the new primary addresses in order to access the web interface Setting up the PTP media clock After the initial setup of the AES67 interface and rebooting the loudspeaker you can set u...

Страница 25: ...ue 127 Min value is 0 for PTP slave only devices Max value is 255 for PTP clock master not recommended Sync Interval Announce Interval Announce Receipt Timeout Saving the current settings as default I...

Страница 26: ...onnection management mode the loudspeaker needs to be rebooted before performing any further configuration X Navigate to the AES67 CONFIG menu item X Click Reboot Device Setting up NMOS connection man...

Страница 27: ...onfiguration X Navigate to the AES67 CONFIG menu item X Click Save Active Configuration Rebooting the loudspeaker After setting up the ANEMAN connection management mode the loudspeaker needs to be reb...

Страница 28: ...ire an AES67 ASIO driver and an AES67 audio interface This example describes the procedure for AES67 Ravenna connection management using the web interface of the KH 150 AES 67 and KH 750 AES67 as well...

Страница 29: ...channels of the AES67 stream to the internal DSP The matrix will indicate the routed audio with green cross points The audio will start playing To remove a connection X Open the web interface of the K...

Страница 30: ...downward arrow next to the Selected Channels box to enable these internal chan nels X Leave the Link Offset box as it is X Click Update Destination This will route all channels of the AES67 stream to...

Страница 31: ...DM 0 I8S 1 X Click the downward arrow next to the Selected Channels box to enable these internal chan nels X Leave the Link Offset box as it is X Click Update Destination This will route all channels...

Страница 32: ...e ROSS VIDEO ANEMAN plugin X We also recommend installing the MTDiscovery software by Merging Technologies X Open the ANEMAN Network Controller software The loudspeaker will be detected automatically...

Страница 33: ...the matrix click on the cross point in the top left corner This will route all channels of the DANTE AES67 stream to the internal DSP The matrix will indicate the routed audio with green cross points...

Страница 34: ...n the right will be enabled X Ignore the Destination Name dropdown X Enter a name for the stream X Copy the plain text from the SDP file and paste it into the Destination SDP box X Highlight the first...

Страница 35: ...uality grounding in the audio cable Check the cabling especially if unbalanced cabling has been used see the cable wiring diagram on page 7 Use gold plated connectors Set the output level of the louds...

Страница 36: ...lative humidity Operation and storage unpacked max 75 non condensing Transport and storage packed in original packaging max 90 non condensing Acoustical measurements and block diagram Additional techn...

Страница 37: ...50 AES67 37 Installation angles 0 0 1 1 1 1 0 0 1 1 8 8 0 0 9 9 0 0 1 1 5 5 0 0 3 3 0 0 22 5 22 5 6 6 0 0 1 1 2 2 0 0 1 1 0 0 0 0 1 1 1 1 0 0 9 9 0 0 1 1 5 5 0 0 3 3 0 0 6 6 0 0 1 1 2 2 0 0 1 1 0 0 0...

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