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Neumann.Berlin KH 420, Руководство по эксплуатации

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  |  KH 420

The KH 420 studio monitor

Thank you for purchasing a Neumann studio monitor. The KH 420 features a Mathematically 
Modeled Dispersion™ Waveguide (MMD™), flexible acoustical controls, various input options 
and an extensive range of mounting hardware. This allows the loudspeaker to be used in 
diverse acoustical conditions, with any source equipment and in a wide variety of physical 
locations. The KH 420 represents the latest in acoustic and electronic simulation and measure-
ment technologies to ensure the most accurate sound reproduction possible. 

The KH 420 is designed for use as mid-field and main monitor. It can be used as a front louds-
peaker in mid-sized and large multi-channel systems, or as a rear loudspeaker in larger multi-
channel systems.

Package contents

1  KH 420
3  Mains cables (European, UK and US versions)
1  Operating manual 
1  “Getting Started Quickly” supplement

Note that imperial dimensions are approximate.

The current operating manual as well as the supplement “Getting Started Quickly” can also be 
downloaded from the “Downloads” area on the product page at www.neumann.com.

 

 

EN

Содержание KH 420

Страница 1: ...georg neumann gmbh Leipziger str 112 10117 berlin germany tel 49 0 30 417724 0 fax 50 headoffice neumann com www neumann com KH 420 Active Studio Monitor Operating Manual...

Страница 2: ......

Страница 3: ...0 17 Switching the KH 420 on off 17 Adjusting the frequency response 17 Adjusting the acoustical level 19 Compensating for video delay lip sync 20 Compensating for listening distance differences time...

Страница 4: ...ng the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service per...

Страница 5: ...s the duration must be shortened in order to prevent hearing damage The following are signs that you have been subjected to excessive sound pressure levels for too long a time You can hear ringing or...

Страница 6: ...tronic simulation and measure ment technologies to ensure the most accurate sound reproduction possible The KH 420 is designed for use as mid field and main monitor It can be used as a front louds pea...

Страница 7: ...iver 4 Rotatable waveguide 5 Bass driver 6 Woofer ring 7 Bass reflex ports You can adjust the brightness of the Neumann logo For more information refer to page 22 When installing a Remote Electronics...

Страница 8: ...6 KH 420 9 8 8 8 8 8 8 9 8 8 8 Threaded inserts for mounting hardware Remove inserted plastic plugs before attaching mounting hardware 9 Accelerated Heat Tunneling cooling fins AHT EN...

Страница 9: ...DIM 1 D D D D D D D D D D D D D D D D D D D D D D D D D D 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 M M M M M M M M M M M M M M M M M M M M M M M I I I I I I I I I I I I I 0 DISPLAY BRIGHTNESS switch Dim...

Страница 10: ...t is possible to remove the electronics panel and locate it remotely using the REK 4 accessory and Cable Packs CP nn For information on installation please refer to the supplied Getting Started Quickl...

Страница 11: ...orientation see table above and position it back into the front panel cut out To avoid rattles the driver cables are tightly sandwiched bet ween the rear of the waveguide and the damping material X En...

Страница 12: ...eaker setup symmetrically in the listening room X X Arrange all acoustically relevant surfaces and objects symmetrically on either side of the listening axis of the room left right X X Minimize the so...

Страница 13: ...Right X X Copy the diagram Installation angles that can be found at the end of this operating manual X X Place the diagram at the listening position or center of the listening area X X Using a tape me...

Страница 14: ...m 1 3 8 any small remaining time of flight adjustment should be made by moving the loudspeaker cabinet DIM 1 DIM 1 DIM 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 M M M M M M M M M M M M M M M...

Страница 15: ...ght from the listening position to the bass midrange and tweeter drivers Connecting audio signals X X Always use good quality cables with the correct impedance and appropriate termination to avoid sig...

Страница 16: ...cket XLR I of the DIM 1 X Connect the digital AES3 or S P DIF output signal of your audio source to the AES3 INPUT socket I or J of the DIM 1 See figure below The DIM 1 only supports non encoded AES3...

Страница 17: ...t BNC K T pieces are not required see figure below X X Make an appropriate setting DIGITAL A or DIGITAL B on the SIGNAL SELECT rotary switch L End of the line external termination is not required as t...

Страница 18: ...when an analog signal is connected to the ANALOG INPUT socket H therefore the DIM 1 cannot be used as an analog to digital converter Delay is not added to the digital output so any delay required on...

Страница 19: ...ditions When the loudspeaker is installed in your monitoring environment the response changes The same loudspeaker installed in different positions in the same room may require different acoustical co...

Страница 20: ...a wide bump 2 6 dB high between 100 and 300 Hz Reflections from nearby bounda ries walls floor ceiling cause constructive and destructive interference Strong room resonances are audible and should be...

Страница 21: ...cal controls This is particularly true when setting the parametric equalizer Adjusting the acoustical level X X On your KH 420 loudspeakers set the OUTPUT LEVEL switch A to the lowest possible value o...

Страница 22: ...small enough 0 1 ms that the delay can be used for time of flight adjustment 3 44 cm or 1 3 8 steps To compensate for the time of flight delay the audio signal of the KH 420 can be delayed by up to 4...

Страница 23: ...equals 2 1 ms which is the nearest value For video delay compensation converter latency can be ignored as it is insignifi cant compared to long video signal delays To help with choosing a delay setti...

Страница 24: ...e DISPLAY BRIGHTNESS switch 0 is set to OFF Cleaning and maintaining the KH 420 CAUTION Damage to the product caused by liquids Liquids entering the product can cause a short circuit in the electronic...

Страница 25: ...m in typical listening conditions 109 dB C SPL Max short term SPL with music material at 2 3 m in typical listening conditions pair 102 dB C SPL full range 109 dB C SPL with subwoofer Max long term S...

Страница 26: ...3 at 33 ms frame Minimum delay resolution time distance 0 1 ms 3 4 cm 1 3 8 Latency D A with delay 0 ms 1 84 ms at 22 05 kHz 1 70 ms at 24 kHz 1 28 ms at 32 kHz 0 93 ms at 44 1 kHz 0 86 ms at 48 kHz...

Страница 27: ...rt B Safety UL 60065 Canada EMC ICES 003 CAN ICES 3 B NMB 3 B Safety CAN CSA C22 2 No 60065 Acoustical measurements block diagram and pin assignment Additional technical data such as acoustical measur...

Страница 28: ...g Neumann GmbH Mathematically Modeled Dispersion and MMD Accelerated Heat Tunneling and AHT Other company product or service names mentioned in this operating manual may be the trademarks service mark...

Страница 29: ...kHz Delay ADC Analog Digital A Digital B all available with and without delay 0 1 ms 1 6 ms 25 6 ms Signal Select 100 60 30 0 Power Amplifiers DIM 1 only XLR AES3 Input Parametric 4 12 0ff 25 80 50 1...

Страница 30: ...Response Freifeld Frequenzgang R ponse en champ libre Respuesta en frecuencia en campo libre Harmonic Distortion at 90 dB SPL Klirrfaktor bei 90 dB SPL Distorsion harmonique 90 dB SPL Distorsi n arm n...

Страница 31: ...dB SPL Klirrfaktor bei 95 dB SPL Distorsion harmonique 95 dB SPL Distorsi n arm nica total a 95 dB SPL Harmonic Distortion at 100 dB SPL Klirrfaktor bei 100 dB SPL Distorsion harmonique 100 dB SPL Di...

Страница 32: ...H 420 Group Delay Gruppenlaufzeit Temps de propagation de groupe Retardo de grupo Maximum SPL at 1 m 1 3 and 10 Maximaler SPL bei 1 m 1 3 und 10 Niveau SPL maximal 1 m 1 3 et 10 SPL m ximo a 1 m 1 3 y...

Страница 33: ...420 V Acoustical Controls Akustikregler Effet des correcteurs de compensation acoustiques Regulador ac stico Parametric Equalizer Parametrischer Equalizer galiseur param trique Ecualizador param tric...

Страница 34: ...VI KH 420 Cumulative Spectral Decay Zerfallsspektrum D croissance spectrale cumul e Ca da espectral acumulada...

Страница 35: ...srichtung Directivit horizontale Orientation verticale du coffret Directividad horizontal Orientaci n vertical del gabinete 24 21 21 18 18 15 15 12 12 9 9 6 6 3 3 0 0 3 90 60 30 30 60 90 Angle 126 160...

Страница 36: ...85 1000 1274 1567 1995 2541 3126 3981 5070 6237 7943 10116 12445 15849 20000 Frequency Hz 0 Vertical Directivity Plot Vertical Cabinet Orientation Vertikales Abstrahlverhalten Vertikale Geh useausrich...

Страница 37: ...srichtung Directivit horizontale Orientation horizontale du coffret Directividad horizontal Orientaci n horizontal del gabinete 24 21 21 18 18 15 15 12 12 9 9 6 6 3 3 0 0 3 90 60 30 30 60 90 Angle 126...

Страница 38: ...0 1274 1567 1995 2541 3126 3981 5070 6237 7943 10116 12445 15849 20000 Frequency Hz 0 Vertical Directivity Plot Horizontal Cabinet Orientation Vertikales Abstrahlverhalten Horizontale Geh useausrichtu...

Страница 39: ...ation angles Aufstellwinkel Angles d installation ngulos de colocaci n 0 0 1 11 10 0 1 18 80 0 9 90 0 1 15 50 0 3 30 0 22 5 22 5 6 60 0 1 12 20 0 1 10 00 0 1 11 10 0 9 90 0 1 15 50 0 3 30 0 6 60 0 1 1...

Страница 40: ...4 8 1 651 5 5 0 1 0 1 4 102 4 35 226 115 7 2 6 3 1 6 4 2 202 7 3 0 2 0 2 5 128 0 44 032 144 6 3 2 3 8 8 0 2 752 9 0 0 2 0 2 6 153 6 52 838 173 4 3 8 4 6 9 6 3 302 10 10 0 2 0 3 7 179 2 61 645 202 3 4...

Страница 41: ...0 Hz 60 Hz 0 0 0 0 000 0 0 0 0 0 0 1 0 1 0 034 0 1 0 0 0 0 2 0 2 0 069 0 3 0 0 0 0 3 0 3 0 103 0 4 0 0 0 0 4 0 4 0 138 0 5 0 0 0 0 5 0 5 0 172 0 7 0 0 0 0 6 0 6 0 206 0 8 0 0 0 0 7 0 7 0 241 0 9 0 0 0...

Страница 42: ...04 14 554623 A01...

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