Bogen SP158A Installation Instructions

SP158A, SPT15A,
SP308A, SPT30A
15/30-Watt Horn Loudspeakers
Installation Instructions
STEP 1 - For easier installation, remove the mounting base from the speaker by
unscrewing the wing nut while at the same time pressing inwardly on the wing nut.
Place the mounting base flush on the mounting surface and mark the location of the
three holes with either a marker or chisel. It is important that the three holes be
exactly aligned with the mounting base, otherwise you might stress the base or make
the connection unsteady. Use appropriate hardware for your specific mounting
surface.
NOTE: Speaker may also be strap-mounted through the slot in mounting base using
standard 1/2-inch industrial strapping (not included).
STEP 2 - After mounting the base, reattach the speaker and aim the speaker for the
desired coverage angle. A 45° downward angle is recommended, but this may vary
depending upon speaker layout. Unless otherwise indicated, do not aim speakers
directly at each other or poor paging intelligibility may occur.
STEP 3 - Remove the plastic cover to expose the connecting screws (see Figure 2). Strip
the ends of the connecting wires about 1/4" and connect them to the terminals.The
terminals are numbered to indicate phasing.
Provide cable strain relief by laying the cables within the recess on the casting and
holding it tight with the plastic cover.The narrow recess is for zip or two-conductor
cable; the wide recess is for shielded cable.
Connect wires as listed below:
Amplifier Output
70V, 25V, or 8 ohms
COM
NOTE: These are recommended connections.The speaker will also work perfectly well with these connections reversed, but be
consistent in wiring connections.
STEP 4 - Adjust the tap set control to the desired setting. See table (Figure 3 on next page) for tap settings and sound pressure lev-
els for the different horn loudspeakers. Replace the plastic protective cover back over the exposed area.
Speaker Connections
Terminal 1
Terminal 2
15W
Figure 1. Mounting Base and
Strap Mounting Slot
Figure 2. Tap Set Control and
Connecting Screw Terminals
(SPT15A/SPT30A only)
© 2007 Bogen Communications, Inc.
Specifications subject to change without notice.
54-5817-02B
30W
0704