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Klein + Hummel 

M 52 (D) 

Page 1 

Introduction

Introduction

Introduction

Introduction 

 
Thank-you for purchasing a Klein + Hummel loudspeaker. The compact size, variety of 
input connections, power sources, and extensive mounting hardware range allow the M 
52 and M 52 D loudspeakers to be used with any source equipment and in a wide variety 
of physical locations. The latest acoustical and electrical techniques and components have 
been used to ensure the most accurate sound reproduction possible. Klein + Hummel 
products are designed for longevity so we hope you enjoy many happy years of using this 
product. 
 
Klein + Hummel’s control monitors can be used on meter bridges, free-standing, mounted 
on to walls, or in a rack. They can be used in music, broadcast, and post production studios 
for tracking, mixing, and mastering. They can be used in stereo or multichannel systems, 
with or without subwoofers. 
 
Before reading the rest of this operating manual, review the safety and warnings section 
towards the back of this book. Note that imperial dimensions are approximate. 
 
 

Package Contents

Package Contents

Package Contents

Package Contents    

 
The shipping carton contains: 

 

This operating manual 

 

Product guarantee 

 

The loudspeaker 

 

Two mains power cables (Euro and USA) 

Signal cables are not included. Accessories are listed at the end of this operating manual. 
 
 

Most Common Applications and 

Most Common Applications and 

Most Common Applications and 

Most Common Applications and Listening Distances

Listening Distances

Listening Distances

Listening Distances    

 
The minimum, recommended, and maximum listening distances for each product are 
shown below, together with their most common application: 
 

    

    

Distances

Distances

Distances

Distances    

Product

Product

Product

Product    

Most Common 

Most Common 

Most Common 

Most Common 

Application

Application

Application

Application    

Minimum

Minimum

Minimum

Minimum    

Recommended

Recommended

Recommended

Recommended    

Maximum

Maximum

Maximum

Maximum    

M 52 

Near-field monitoring 

0.5 m (2’) 

1.0 m (3’) 

3 m (9’) 

M 52 D 

Near-field monitoring 

0.5 m (2’) 

1.0 m (3’) 

3 m (9’) 

 
In multichannel systems, one should ideally use the same product for all main channels. 
However, as the rear channels often contain less bass and the signals are mixed at a lower 
level than the front channels, the rear loudspeakers can be smaller - see table below for 
details. The center loudspeaker should always be of the same type as the left and right 
loudspeaker. The subwoofer should be sufficient to keep up with the main loudspeakers - 
see subwoofer operating manual for details. 
 

Front

Front

Front

Front    

Ideal Rears

Ideal Rears

Ideal Rears

Ideal Rears    

Smaller Rear

Smaller Rear

Smaller Rear

Smaller Rearssss    

Subwoofer(s)

Subwoofer(s)

Subwoofer(s)

Subwoofer(s)    

M 52 (D) 

M 52 (D) 

O 110 (D) 

O 110 (D) 

M 52 (D) 

O 300 (D) 

O 300 (D) 

M 52 (D), O 110 (D) 

Refer to subwoofer  

operating manuals 

 
 

Содержание M 52

Страница 1: ...rating Manual Operating Manual M 52 M 52 D Part Part Part Part Number Number Number Number 520766 Version Version Version Version 02 Date Date Date Date 23 Nov 2007 Language Language Language Language...

Страница 2: ......

Страница 3: ...f this operating manual Most Common Applications and Most Common Applications and Most Common Applications and Most Common Applications and Listening Distances Listening Distances Listening Distances...

Страница 4: ...Panel Picture M 52 M 52 M 52 M 52 electronics panel electronics panel electronics panel electronics panel M 52 D el M 52 D el M 52 D el M 52 D electronics panel ectronics panel ectronics panel ectron...

Страница 5: ...placed into standby mode If the back panel mains switch is on standby is indicted by a red light on the front panel Otherwise it is green loudspeaker is ready to be used or off loudspeaker is switched...

Страница 6: ...ors ensure good interconnectivity options It is possible to have analog and digital signals connected with the rear panel cable cable cable cable selector selector selector selector switch switch swit...

Страница 7: ...ch on the first loudspeaker should be set to the XLR setting This outputs an AES3id signal from the BNC connector for connecting additional monitors to the original AES3 signal The second loudspeaker...

Страница 8: ...tch depending on the location of the loudspeaker Note that the BNC connector has no output driver When using the AES3 input the output level is derived passively from the AES3 signal s input level Thi...

Страница 9: ...ction system In general larger loudspeakers can play louder and for longer periods than smaller loudspeakers As with any other component in the audio chain it is best to use the lowest gain for the ap...

Страница 10: ...nted in a rack however they will still have a good response when used in other applications If the sound quality is not acceptable try moving the loudspeaker or nearby objects until it is An acoustica...

Страница 11: ...nditions 10 C to 40 C 50 F to 104 F 90 relative humidity non condensing During transport or storage the ambient conditions can be 25 C to 70 C 13 F to 158 F 90 relative humidity non condensing Before...

Страница 12: ...ker stand For placement in a rack or on a meter bridge suitable accessories see Accessories and Options section are recommended The loudspeakers should be placed on a circle to ensure equal time of ar...

Страница 13: ...nly M 52 D only M 52 D only Optional Format XLR Format BNC AES EBU AES3id S P DIF Impedance XLR balanced 110 Impedance BNC unbalanced 75 Input switching Analog Digital A B Mono Digital converter resol...

Страница 14: ...e M 52 D M 52 D M 52 D M 52 D Maximum Maximum Maximum Maximum SPL SPL SPL SPL output at 3 THD output at 3 THD output at 3 THD output at 3 THD M 52 D M 52 D M 52 D M 52 D horizontal directivity plot ho...

Страница 15: ...y other liquids moisture or naked flames Do not install this product into hot humid or excessively dusty locations or into direct sunlight Avoid installing this product into locations where it will ex...

Страница 16: ...hould be disconnected whenever the electronics panel is opened If the main fuse blows the product should be checked by a Klein Hummel certified service engineer Guarantee Guarantee Guarantee Guarantee...

Страница 17: ...esidential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio c...

Страница 18: ...Klein Hummel M 52 D Page 16...

Страница 19: ......

Страница 20: ...mmel reserve the right to change product specifications without notice Exceptions and omissions excluded K H Vertriebs und Entwicklungsgesellschaft mbH Auf dem Kessellande 4a 30900 Wedemark Germany Ph...

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