Rotating the Horn:
The PX2122 and PX2152 loudspeakers have horns that can be rotated to change the coverage pattern. The coverage pattern angles are molded on the horn flange.
1.Remove the (6) screws that attach the grille to the enclosure (Figure 2).
2.Remove the (12) screws that attach the horn to the enclosure, and disconnect the wires that attach the ND2 to the input panel (Figure 3). The jumper that is between both ND2’s can remain connected.
3.Remove the (4) nuts and bolts that connect the manifold to the horn. Rotate the horn 90° so the desired vertical coverage pattern is parallel to the ND2’s and manifold, then reattach the manifold using the (4) nuts and bolts (Figure 4).
4.Reconnect the wires that attach the ND2 to the input panel (reverse of Figure 3). The yellow wire corresponds to the positive terminal, and the yellow and black wire corresponds to the negative terminal. Reattach the horn to the enclosure using the (12) screws.
5.Reattach the grille using the (6) screws (reverse of Figure 2).
Grille Screw
PX2122 or PX2152(x6) Loudspeaker
(PX2152 Shown)
Loudspeaker
Grille
Figure 2:
Removing the Grille from the Enclosure
Horn Screw
(x12)
Horn/
Subassembly
Figure 3:
Removing the Horn from the Enclosure
Manifold/
Compression
Driver Assembly
Manifold
Bolt
(x4)
Manifold
Nut (x4)
Horn
Figure 4:
