AtlasIED C803AT47 8-Inch Coaxial Speaker with 4W 70V Transformer

The AtlasIED C803AT47 is a professional 8-inch, two-way coaxial loudspeaker with a factory-installed 4-watt, 70.7V line-matching transformer, designed for commercial paging, background music, and distributed audio systems. Combining the AtlasIED C803A coaxial speaker with a transformer, this assembly provides extended frequency reproduction and convenient integration into commercial constant-voltage sound installations.

Featuring an 8-inch low-frequency driver, 3-inch high-frequency driver, and integrated crossover network, the C803AT47 delivers clear voice reproduction and detailed music performance for commercial, industrial, and institutional applications.

With a 60Hz–12kHz frequency response, 95dB average sensitivity, and 120° dispersion, this speaker is well suited for offices, retail stores, restaurants, educational facilities, and other commercial environments.

The factory-installed transformer provides selectable 0.5W, 1W, 2W, and 4W power taps, allowing installers to adjust speaker output levels throughout a distributed audio system.

The C803AT47 is compatible with a variety of AtlasIED baffles and enclosures, providing flexibility for different installation requirements.

Two-Way Coaxial Speaker Design

The AtlasIED C803AT47 incorporates the C803A two-way coaxial loudspeaker, which combines separate low-frequency and high-frequency drivers within one assembly.

The speaker features:

• 8-inch low-frequency driver for voice and music reproduction
• 3-inch high-frequency driver for improved upper-frequency detail
• Built-in crossover network that directs audio frequencies to the appropriate driver

This configuration provides broader frequency reproduction than many conventional single-cone commercial paging speakers.

The coaxial design is particularly useful for distributed audio installations where both speech intelligibility and background music quality are important.

Post-Mounted Tweeter Construction

The C803AT47 features a post-mounted high-frequency driver designed to provide additional structural support while maintaining a professional appearance.

The low-frequency driver incorporates a 10-ounce ceramic magnet, while the high-frequency driver features a 2.35-ounce ceramic magnet.

These components work with the integrated crossover network to provide balanced audio reproduction across the speaker's operating frequency range.

The post-mounted tweeter design also contributes to the speaker's distinctive coaxial construction.

Factory-Installed 4-Watt 70.7V Transformer

The AtlasIED C803AT47 includes a factory-installed line-matching transformer designed for 70.7V distributed audio systems.

Available transformer power taps include:

• 0.5 watts
• 1 watt
• 2 watts
• 4 watts

These selectable settings allow installers to adjust individual speaker output levels based on the requirements of each listening area.

Lower tap settings may be suitable for quieter background music applications, while higher settings can provide additional output where needed.

The underlying C803A loudspeaker has a 16-watt power rating, while the factory-installed transformer has a maximum selectable tap of 4 watts.

This distinction is important when designing a commercial constant-voltage audio system.

Extended Frequency Response for Paging and Music

The AtlasIED C803AT47 provides a 60Hz–12kHz frequency response with sensitivity ratings of 98dB peak and 95dB average.

Its two-way coaxial construction is designed to reproduce both speech and music with clarity.

The speaker is suitable for commercial installations requiring more detailed audio reproduction than basic paging-only loudspeakers.

Typical applications include background music, public announcements, and general distributed audio systems.

Wide 120° Sound Dispersion

The C803AT47 features a 120° dispersion pattern, providing broad audio coverage throughout the listening area.

This characteristic makes it suitable for commercial installations requiring consistent sound distribution across multiple listening positions.

When incorporated into a properly designed speaker layout, the wide dispersion pattern can help provide balanced audio coverage in offices, retail stores, restaurants, and other commercial spaces.

Actual speaker spacing should be determined according to ceiling height, room acoustics, and system requirements.

Compatible with AtlasIED Baffles and Enclosures

The AtlasIED C803AT47 is designed to work with a variety of compatible AtlasIED speaker baffles and enclosures.

This flexibility allows installers to select mounting components based on the installation's appearance, ceiling construction, and acoustic requirements.

The underlying C803A speaker design has an optimum sealed enclosure volume of 0.36 cubic feet, as identified by AtlasIED.

Appropriate baffles, enclosures, and mounting hardware should be selected separately unless specifically included in the product offering.

Designed for Commercial Distributed Audio Systems

The AtlasIED C803AT47 is designed for professional sound installations requiring both paging and background music reproduction.

Common applications include:

• Commercial paging systems
• Retail background music
• Restaurants and hospitality facilities
• Office sound systems
• Educational buildings
• Institutional audio installations
• General announcement systems
• Distributed 70.7V speaker systems

Its combination of coaxial speaker construction and selectable transformer taps makes it a versatile option for commercial audio contractors.

AtlasIED C803AT47 Key Features

• Professional 8-inch two-way coaxial loudspeaker
• 16-watt loudspeaker power rating
• Factory-installed 4-watt 70.7V transformer
• Selectable 0.5W, 1W, 2W, and 4W transformer taps
• 8-inch low-frequency driver
• 3-inch high-frequency driver
• Built-in crossover network
• Post-mounted tweeter construction
• 10-ounce ceramic magnet for low-frequency driver
• 2.35-ounce ceramic magnet for high-frequency driver
• Treated-paper speaker cone
• 60Hz–12kHz frequency response
• 98dB peak / 95dB average sensitivity
• 120° dispersion
• Compatible with a variety of AtlasIED baffles and enclosures
• Manufacturer-listed UL 1480 and UL 2043 safety certifications
• 60-month manufacturer warranty

AtlasIED C803AT47 Technical Specifications

Typical Applications

Commercial Background Music

Provide distributed music reproduction in retail stores, restaurants, offices, and other commercial environments.

Paging and Announcement Systems

Deliver clear voice reproduction for general announcements through compatible 70.7V audio systems.

Educational Facilities

Support paging and background music in classrooms, administrative offices, and other institutional spaces.

Hospitality Installations

Provide background music and announcements in reception areas, lounges, and other commercial environments.

Commercial 70.7V Audio Systems

Integrate with compatible constant-voltage amplifiers for distributed speaker installations requiring selectable power taps.

Why Buy the AtlasIED C803AT47 from Audio Supply?

At Audio Supply, we specialize in professional audio equipment for commercial paging, background music, and distributed sound systems.

The AtlasIED C803AT47 combines an 8-inch two-way coaxial loudspeaker with a factory-installed 4-watt transformer, providing a convenient solution for commercial installations requiring detailed audio reproduction and 70.7V compatibility.

Whether you're upgrading an existing sound system or designing a new commercial audio installation, Audio Supply can help you select compatible amplifiers, speaker enclosures, and installation accessories.

Need an 8-Ohm Coaxial Speaker Instead?

If your installation uses a low-impedance amplifier rather than a 70.7V distributed audio system, consider the AtlasIED C803A.

The C803A features the same basic 8-inch coaxial speaker design with a 16-watt power rating, but operates at 8 ohms without a factory-installed transformer.

Explore the AtlasIED C803A for commercial audio installations requiring an 8-ohm coaxial loudspeaker.