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4. Subwoofer mounting:
• Mount the subwoofers at the base of the screen and as close as possible to the wall/oor
intersection.
• Cluster the individual units together in order to take maximum advantage of mutual coupling.
• Watch out for rattles; use plenty of neoprene padding for isolation. (See Figure 45)
VIII. LISTING OF THX
®
APPROVED JBL PROFESSIONAL PRODUCTS
A. Screen systems:
3678 (3678-HF and 3678-LF)
3632T (3632-M/HF-T and 4639)
4632T (4632-M/HF-T and 4639)
4675C-8LF (4675-HFA and 4648A-8)
5671 (5671-M/HF and 5641)
5671 (5674-M/HF and 4648A)
5674 (5674-M/HF and 5644)
B. Subwoofers:
4641
4645C
4642A
4642A-GS (with grilles)
C: Surround Systems:
8330A
8340A
Figure 45: Subwoofer placement, front and side section views.
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