EM Acoustics Quake MSE-118 User Manual Download Page 7

MSE-118 Quake User Manual 

www.emacoustics.co.uk 

 
 

 
 
 
 
 
 
 
 
Stack Placement 
In order to reduce the classic “bowling alley” effects when stacks are used in a traditional left/right format, some 
users prefer to array their Quakes as a single line across the front of the stage.  Not only does this method give 
extra horn area in one place, but will provide an even dispersion rather than a 6dB boost on the centreline 
as with L/R systems.  The photo in Fig.3 shows USA rental company Big Mo Productions using 16 Quakes in a 
central mono block for the LibertyJAM festival in 2006. 

 

Fig.3 – Central Mono Block

Summary of Contents for Quake MSE-118

Page 1: ...r Manual v1 0 EM Acoustics Loudspeakers Building 74 Dunsfold Park Cranleigh Surrey GU6 8TB UK Phone 44 0 1483 266520 Fax 44 0 1483 275619 www emacoustics co uk ________________________________________...

Page 2: ...3 Product Overview MSE 118 Quake Subwoofer enclosure 4 System Set up Safety Considerations 5 Cabling Amplifier selection 5 Quake in use Stacking 6 Stack Placement 7 Delay Times 8 Maintenance MSE 118...

Page 3: ...thoroughly tested before it leaves our factory After unpacking your loudspeaker please inspect it carefully for any signs of transit damage If such damage is found please notify the carrier at once t...

Page 4: ...evels found in the horn throat This drive unit is loaded onto a horn nearly 9 2743mm in length to provide unprecedented depth and power from a single drive unit enclosure Quake was designed to be equa...

Page 5: ...an amplifier equal to the program power rating of the loudspeaker so as to retain sufficient headroom and good dynamic range Care should be taken during operation to avoid amplifier clipping as this c...

Page 6: ...array Quakes in this way With the horns close coupled in this manner a four stack of Quakes provides surprisingly strong pattern control characteristics with good front to back rejection This format a...

Page 7: ...array their Quakes as a single line across the front of the stage Not only does this method give extra horn area in one place but will provide an even dispersion rather than a strong 6dB boost on the...

Page 8: ...ll show whether the Quakes are properly aligned with your mid high enclosures The physical delay time for a Quake due to the horn length is 7 97 milliseconds This time needs to be applied to your syst...

Page 9: ...he driver simply reverse the above procedure Please observe the correct polarity the black striped cable to negative terminal 5 Before reinstating the access door check the condition of the sealing ga...

Page 10: ...rning your EM Acoustics loudspeaker Should your EM Acoustics loudspeaker develop a fault please return it freight prepaid in its original packaging along with proof of purchase to your local dealer or...

Page 11: ...1m single enclosure 110dB 1W 1m four enclosure stack Dispersion Omnidirectional single enclosure Drive Units 18 457mm LF cone drive unit Power Handling 800W RMS 1600W Program Maximum SPL 134dB continu...

Reviews: