JBL Professional on Twitter: "As an add-on to a JBL M2 system, the SUB18 allows three times greater output! #HearTheTruth https://t.co/lOE4tddNIG" / Twitter
JBL M2 for The Poors | Page 17 | diyAudio
JBL M2 Master Reference Monitors (PAIR) With Crown iTech 4 X 3500HDS | Reverb