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).
Figure 2:
Removing the Grille from the Enclosure
Figure 3:
Removing the Horn from the Enclosure
Figure 4:
Detaching the Manifold Assy from the Horn
PX2122 or PX2152
Loudspeaker
(PX2152 Shown)
Loudspeaker
Grille
Grille Screw
(x6)
Horn Screw
(x12)
Horn/
High-Frequency
Subassembly
Manifold
Bolt
(x4)
Horn
Manifold
Nut
(x4)
Manifold/
Compression
Driver Assembly
