TOA Electronics W-906A - Manual (Page 5)

4. INSTALLATION AND CONNECTION
Installing this amplifier requires the optional back box, which is Model BX-9F for flush mounting in any 4 inch
wall and Model BX-9S for surface mounting.
Fix the back box first in installing the amplifier...
Installing Procedure
Step 1. Attach hinges to the back box by means of screws. (The hinges and screws are accessories supplied
free of change.)
Step 2. Fix the amplifier to the back box by inserting the amplifier bolts into the hinges as illustrated.
Step 3. Connecting power cable
Be sure to make proper cable connections according to
color cording of the power cable.
After connection is completed, insulate sufficiently the
jointed sections and put them in a junction box.
Step 4. Attaching the junction box to the back box
The BX-9F differs from the BX-9S in the way to attach the junction box to the back box.
Step 5. Connecting the speaker cable
Connect the speaker cable to the speaker terminals on
the junction box. Amplifier output impedance may be
selected at the output terminals on the front panel.
5
From indoor wiring
Junction Box
BLACK
GREEN
GREEN
WHITE
BLACK
WHITE
M3 x 10 screw (4 pcs)
Nut M3 (4 pcs)
+
M3 x 8 Tapping screw
(4 pcs) +
SPEAKER TERMINAL
Class 2 Wiring
may be used.
SPEAKER CORD
INPUT 1
POWER ON 250V 3A 250V 6A OFF
OFF MAX
INPUT 2 INPUT 3
AC FUSE
OFF ON LOW PASS OFF ON HIGH PASS OUT 63 125 250 500 1k 2k 4k 8k 16k
63 125 250 500 1k 2k 4k 8k 16k
IN EQUALIZER
OUTPUT FUSE COMPRESSOR
INPUT 4 INPUT 5 INPUT 6 MASTER
12 6 0 6 12
12 6 0 6 12
Amplifier
(main chassis)
Back Box
BX-9F, BX-9S
HINGE
M3 x 6 mm
(6 pcs)
[BX-9F] [BX-9S]