As a result, a reliable and practical bass reproduction speaker apparatus can be obtained, and the speaker apparatus is noise free and excellent in bass reproduction performance even with {HEAD ~ a cabinet} of {TAIL ~ small capacity} 
of
As a result , a reliable and practical bass reproduction speaker apparatus can be obtained , and the speaker apparatus is noise free and excellent in bass reproduction performance even with { HEAD ~ a cabinet } of { TAIL ~ small capacity }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL