Sound Blaster MP3 Player Speaker, Black 51MF8170AA005 Manuale Utente

Sound Blaster Roar SR20A White Paper – Evolution, Concept and Tech Overview 
 

10/7/2014 P

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Passive conventional                     vs.                Active or Bi-Amplified 
 

 
2.        ‘Boxer-Style’ Low Centre of Gravity Design  

Unlike top-heavy, front/rear-designed speakers that vibrate and move out of 
position at high volumes, the Sound Blaster Roar is designed to be remarkably 
stable with its low centre of gravity. 

 

 
 
 
The dual opposing radiators produces equivalent counter-forces, this symmetry of 
force prevents the unit from moving during extreme driver excursions. 
 
The top firing “active” driver which incidentally also moves the “most” is backed 
by the base of the unit and by the surface on which the unit is resting. The rear 
forces of the active driver are then distributed to the dual radiators.   This three-
action” pisotonic approach provides a very stable platform for a bass module. 
 
Conventional active/passive approach has the active driver firing is one direction 
with passive drivers firing to the rear produces uneven forces. This together with 
the “top-heavy” and small footprint design causes the speaker system to move.  
On bass heavy or loud playback the product may tend to “move”.  
 

Boxer Bass Module 

Conventional Design