Kramer Electronics SV-551ALC - Manual (Page 22)

Installing Optional Ceiling Speakers
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4. Route the wiring from the SPKR terminal block connections of the SV-551
(see Table 2 ) to the speakers’ cutout holes, taking care not to place them next
to electrical wires or at least at a distance of about two feet from an AC line.
5.3 Installing the Closed-back Ceiling Speakers
Figure 6 and Table 7 define the closed-back ceiling speakers.
Figure 6: Closed-back Ceiling Speakers