Data Sheet

Fire Alarm Systems | ET70 High‑performance Speakers
ET70 High‑performance Speakers
www.boschsecurity.com
u 25 VRMS or 70 VRMS operation at a choice of seven
taps from 0.125 W to 8 W
u Cost‑effective two‑wire design
u Low average current draw
u Extra protection and improved audibility through
sealed‑back speaker construction
u Easy wiring with screw terminals
The ET70 Series Speakers provide high audio output
with clear audibility, and are designed to meet the
critical needs of the life safety industry for effective
emergency voice communications and tone signaling.
The high‑efficiency speakers are designed for
maximum output at a minimum wattage across a
frequency range of 400 Hz to 4 kHz.
A speaker mounting plate with a built‑in level
adjustment allows for a faster and easier installation.
The two‑screw grill cover creates an attractive
appearance.
Certifications and approvals
Cooper Wheelock, Inc. holds these Listings and
Approvals:
Region
Certification
USA UL UEAY: Speakers (UL464)
CSFM see our website
Installation/configuration notes
Compatible Products
The following products are compatible with these
ET70 Speakers:
Category Product ID Product Description
Control
Panels
D7022
1
Conventional FACP
D7024
2
Addressable FACP
D7024 Conventional FACP
D8024 Analog FACP
D9124 Addressable FACP
D10024A Analog FACP
FPD-7024
2
Addressable FACP
FPD-7024 Conventional FACP
These speakers are compatible with Wheelock SAFEPATH4 Facility
Communication Systems and Bosch Voice Evacuation Systems.
1
When used, the D7022 must be set for 24 VDC
operation.
2
When used with a D7039 Multiplex Expansion
Module, the D7024 and FPD-7024 become
addressable fire alarm control panels (FACPs).
Mounting
The low profile design of these notification appliances
creates more wiring space in standard electrical back
boxes. The speaker mounting plate incorporates a