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Soundtraxx 28mm Square Mega Bass Speaker ~ 28 x 28 x 11.2mm
SoundTraxx 28mm Mega Bass Square Speaker [810131] - $10.49 : DCC
Speakers Hobbies R Fun
LifeLites
All Products : DCC Hobby Supply, DCC, Digitrax, TCS, NCE
SoundTraxx 27mm(1.06) Mega Bass Speaker [810130] - $10.49 : DCC
31mm 4ohm 3W Bass Speaker – The Saber Armory
SoundTraxx 810131 Mega Bass Speaker 1.10 x 0.44 – Trainz
28mm speaker 4w For Premium Entertainment
MegaBass LED Jobsite Speaker – Tzumi®