Federal Signal’s Models ASHX and ASUX Explosion-Proof Amplified Speakers are designed to produce crisp, clear tones in supervised alarm notification systems. Both models are compatible with fire alarm, voice evacuation, suppression supervised control panels, and power boosters.
These amplified speakers can broadcast tones generated by a Tone Card installed into the speaker (the plug-in 32-tone UTM) or by a central tone source in a voice evacuation or paging system. When live public address or voice messages are required, plug-in Connector Cards (AM25CK or AM70CK) interface with the Vrms of the EVAC panel.
The speaker cone and projector are constructed of rugged spun aluminum. The solid-state amplifier circuit is protected in a die-cast aluminum housing. Dust- and moisture-proof gaskets provide protection from the elements. All external surfaces are sealed with red powder coat paint.


Operating Temperature Range -40°F to 150°F
Net Weight 15.40 lb
Shipping Weight 22.80 lb
Height 17.000 in
Width 13.100 in
Depth 16.300 in
Operating Temperature Range -40°F to 150°F
Net Weight 16.40 lb
Shipping Weight 32.40 lb
Shipping Weight 18.800 in
Width 16.700 in
Depth 19.500 in

Ordering Information

Model Types
Model Description UPC
ASHX-024 Speaker, amplified, explosion-proof, UL, 15 watt, 24VDC, red 782979213888
ASUX-024 Speaker, amplified, explosion-proof, UL, 30 watt, 24VDC, red 782979213925
UTM Universal tone module 782979202172
AM70CK Connector card, 70vrms 782979600862
AM25CK Connector card, 25vrms 782979600855
Replacement Parts
Description Part Number UPC
Horn Assembly, 15W, Red K8593100A-01 782979125471
Bracket Assembly, Mounting, Black, 300X, 304X, 302X, 314X K8593071A 782979125419
4-Position Power Plant Board Assembly K140340B 782979112969