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TRIPLE LOCK SECURITY
Loudspeaker quickly snap-locks to base to allow easy
wiring connections, then secures with screws to with-
stand weather conditions and external forces that, tradi-
tionally, cause sagging or repositioning of the loud-
speaker bell.
❶ Loudspeaker snap-locks to base sleeve
❷ Snap-lock Plastite
®
type screw secures assembly
❸ Security cap screw-locks base between cap and
speaker with (2) two screws
Multi-Purpose Base accepts 1-gang, 2-gang or 4" Sq.
E.O. Boxes in recessed surface and indoor or
outdoor styles.
The base may also be clamped
or band mounted to poles or
beams, removed for flush/bulk-
head installation,or removed
to retrofit existing speaker
installations with AP Series
Omni-Purpose
®
mount.
QUALITY MATERIALS
Enjoy long-term reliability of UL
recognized plastics with UV inhibitors
and a five-year waranty.
DRIVER PROTECTION:
The horn loudspeaker should not be
operated at frequencies below horn
cut-off. It is suggested that any pro-
gram material be high-passed at 400Hz with a 6dB
per octave filter. This can be done by a low level fil-
ter at the amplifier input or by a series capacitor at
each loudspeaker. Electrolytic capacitors can be
used but they must be non-polarized.
EASY ACCESS & ADJUSTMENT
Includes security cap, partially-captive
screws and swing-open access to termi-
nal connections without loosing hardware.
Screwdriver adustable rotary dial adjusts power
taps on the 25/70/100V transformer.
Specifications are subject to change without notice
www.AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
© 2003 ATLAS SOUND LP Printed in U.S.A. 00803 ATS000706 RevC 8/03 PN 416689
INSTALLATION INSTRUCTIONS
APX20TN, APX40TN
Constant-Directivity Paging Loudspeakers
Cap and base have a
K.O. for
1
⁄2
" flex conduit
ROTATING BELL
Lets you respond to specific cover-
age needs quickly in precise 15˚
increments.
“POWER STRIPE” CODE
Lets you identify power
handling at a distance.
Wiring Exit
(Can be enlarged using
needle-nosed pliers)
2 Stripes
40 Watts
1 Stripe
20 Watts
Handy tap reference chart
TYPICAL CAPACITOR VALUES
8 Ohm Driver 25Volt Line 70Volt line 100Volt Line
70 mfd 15 mfd 2 mfd 1 mfd