Edwards (964-1A-4RW) 4 inch cone speaker (25vrms) , round – white

The Edwards 964-1A-4RW is a 4-inch round white ceiling speaker for 25 Vrms fire-alarm voice-communication audio circuits. Specifically, it is the speaker-only (no strobe) variant in the EST 964 Series. Furthermore, it broadcasts integrated emergency voice messages and alert or alarm tone signals in life-safety applications.

First, the speaker cone is 4-inch (102 mm) mylar with sealed-back construction. Then the steel baffle is finished with a baked white epoxy-polyester powder coat. As a result, the speaker delivers durable, clear audio output suited to public-mode notification in hotels, malls, airports, hospitals, and other transient-occupancy buildings.

Field-Selectable Wattage Taps

Specifically, the 964-1A-4RW offers four wattage taps for on-site flexibility. Therefore, output can be tuned to room acoustics without changing the device. Measured at 10 ft (3.05 m) in a reverberant room with band-limited pink noise per UL 1480:

• 1/4 W tap: 79 dBA
• 1 W tap: 82 dBA
• 2 W tap: 85 dBA
• 4 W tap: 88 dBA

Also, the tap is selected via a slide-on connector at the speaker’s terminal block.

Verified Electrical Specifications

• Operating voltage: 25 Vrms audio circuit (964 Series)
• Frequency response: 400 to 4,000 Hz
• Cone: 4-inch (102 mm) mylar, sealed-back construction, 8 W rated, 8-ohm voice coil
• DC blocking capacitor included for electrical supervision of the audio circuit
• Wire terminals: separate polarized inputs, accepts up to #12 AWG (2.5 mm²)

Operating Environment and Mounting

Specifically, the 964-1A-4RW is rated for indoor use only:

• Temperature: 32 to 120°F (0 to 49°C)
• Humidity: 85% relative humidity at 86°F (30°C)

In addition, the recommended flush back box is the Edwards 960A-4RF. Alternatively, mount to a standard North American 4-inch square electrical box, 2-1/8 inches (54 mm) deep, with a 1-1/2 inch extension ring. Therefore, baffle diameter is 7.35 in (187 mm), depth behind baffle is 3.625 in (92 mm), and ship weight is approximately 3 lb (1.3 kg).

Verified Listings

• UL 1480 (speakers for fire-protective signaling systems)
• ULC S541
• CE Compliant
• FM, CSFM, MEA

What This Part Is

However, the 964-1A-4RW is a speaker-only device. Specifically, it does NOT include a strobe. Therefore, if you need a combined audible-and-visible appliance, see the 964-5A / -7A / -3A / -4A / -8A speaker-strobe variants instead.

Also, the 964 Series targets 25 Vrms audio circuits. As a result, do NOT wire it to a 70 Vrms circuit — for 70 V audio, use the 965-1A-4RW instead.

Order the Edwards 964-1A-4RW

To order the Edwards 964-1A-4RW, call 1-888-557-0558. Alternatively, email sales@lifesafetycom.com.

For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com