Version	Language	Size	Uploaded
Owner's Manuals
4508, 4520, 4530, 4550A, 4560A, EN3, EN5, EN8 Information updated: ก.ค. 2019			1.46 เมกะไบต์	ก.ค. 2019
Information documents
JBL Professional Model Number Listing: updated: ต.ค. 2020			47.3 กิโลไบต์	ต.ค. 2020

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