A bass reproduction speaker apparatus comprising a speaker unit having a vibration system, a cabinet to which {TAIL ~ the speaker unit} is attached, a movable magnet that moves together with the vibration system of {HEAD ~ the speaker unit}, and a stationary magnet 
A bass reproduction speaker apparatus comprising a speaker unit having a vibration system , a cabinet to which { TAIL ~ the speaker unit } is attached , a movable magnet that moves together with the vibration system of { HEAD ~ the speaker unit } , and a stationary magnet
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