Meyer Sound MPS-488HP - Manual (Page 15)

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CHAPTER 3: CONNECTING LOUDSPEAKERS TO THE MPS-488HP
NOTE: For information on cable requirements
for your loudspeaker, refer to its operating
instructions. For information on cables and cable
accessories available from Meyer Sound, see
Appendix A, “MPS-488HP Accessories.” For infor-
mation on cable assembly, see Appendix B, “Phoenix
and EN3 Cable Assembly.”
CAUTION: When wiring cable connections for
MPS-488HP Channel Outputs, it is extremely
important that each pin in the connector be wired cor-
rectly. Make sure the 48 V DC from the MPS-488HP is
wired directly (and only) to the 48 V DC pins on the
loudspeaker connector, and that the polarity is
observed (negative to negative, positive to positive) to
avoid damage to the loudspeaker. In addition, make
sure that audio pins are wired correctly; polarity rever-
sals for audio signals affect system performance.
To connect loudspeakers to the MPS-488HP:
1. Power off the MPS-488HP.
2. Connect audio sources (from a mixer or processor) to
the MPS-488HP Channel Inputs. Use balanced XLR
cables.
3. Use the MPS-488HP Link switches to route Channel
Inputs to the desired Channel Outputs (see “Link
Switches” on page 11).
4. Connect the loudspeakers to the MPS-488HP Channel
Outputs. Use composite cables (such as Belden 1502 or
equivalent) wired for both DC power and balanced audio
and outfitted with the appropriate connectors.
■ When connecting loudspeakers equipped with Phoenix
connectors to the MPS-488HPp power supply, use
Phoenix 5-pin female to Phoenix 5-pin female cables.
TIP: You can use two separate cables for loud-
speaker connections: a 2-conductor cable for
DC power and a 3-conductor cable for balanced
audio, both attached to a single Phoenix connector
on each cable end. This allows you to use a larger
gauge for the DC cable so you can achieve longer
cable runs.
!