Pro audio company JBL's CBT column speakers make debut in Helsinki sports hall
萬聲影音有限公司 - JBL CBT100LA-LS Line Array Column Loudspeaker with EN54:24 Certification This member of JBL's CBT Series, the CBT 100 LA is a line array column loudspeaker that features pattern control for
JBL CBT 100LA-1 Passive Column – Turnpike Audio
JBL Professional CBT 100LA-1 Full Range Line Array Column Loudspeaker with 16 2-Inch Drivers, Black : Everything Else