Atlas Sound CD94 – 90°x40° Constant Directivity Re-Entrant Horn

Product Overview

The Atlas Sound CD94 is a constant directivity re-entrant paging horn designed to deliver precisely controlled 90° horizontal by 40° vertical sound coverage for commercial paging and public address installations. Unlike conventional conical horns, the CD94 maintains uniform horizontal dispersion from 900 Hz to 6 kHz, making it the correct choice for large outdoor venues, warehouses, parking structures, and industrial facilities where consistent coverage is critical. The polyester resin and glass-fiber laminate construction with a die-cast zinc throat section provides long-term durability in both indoor and outdoor environments. Compatible with all AtlasIED PD Series drivers via standard 1-3/8"-18 female threads, the CD94 integrates directly into existing or new paging system infrastructure.

Product Description

The CD94 belongs to AtlasIED's CD Series, which represents the only constant directivity re-entrant horns in the industry. Traditional conical horns exhibit significant pattern narrowing at high frequencies, producing uneven coverage with hot spots near the horn axis and insufficient level at the coverage edges. The CD94 eliminates this problem by maintaining controlled horizontal dispersion of 90 degrees (±10°) from 900 Hz to 6 kHz and vertical beamwidth control down to 1000 Hz, resulting in more uniform SPL across the coverage area.

The horn body is constructed from polyester resin and glass-fiber laminate integrally molded to a die-cast zinc throat section — a combination that provides structural rigidity, weather resistance, and dimensional stability across a wide temperature range. The proven CJ46-style heavy-duty steel mounting bracket uses a positive-lock mechanism that supports both single-unit and stacked multi-unit cluster configurations, providing the flexibility to achieve broader or narrower combined patterns for large-format sound reinforcement projects.

SPL performance with the recommended PD60 driver reaches 110 dB at 1W/1m, with a low-frequency cutoff of 300 Hz. The standard 1-3/8"-18 female throat threads accept all AtlasIED PD30, PD-5, and PD60 Series compression drivers, as well as most industry-standard drivers using this thread specification. This makes the CD94 an economical solution for paging network expansions where existing driver inventory can be reused.

Key Features

• Constant Directivity Design — Maintains controlled 90° horizontal coverage pattern from 900 Hz to 6 kHz, eliminating the pattern narrowing that causes uneven coverage with conventional horns.
• Vertical Beamwidth Control to 1000 Hz — 40° vertical coverage (±10°) with control down to 1 kHz reduces floor and ceiling reflections in reverberant environments.
• Glass-Fiber Laminate / Die-Cast Zinc Construction — Polyester resin and glass-fiber horn body integrally molded to a die-cast zinc throat delivers structural durability suitable for demanding indoor and outdoor deployments.
• CJ46-Style Positive-Lock Steel Bracket — Heavy-duty steel mounting bracket with positive locking allows secure repositioning for single-unit and stacked multi-unit cluster configurations.
• Standard 1-3/8"-18 Female Throat Threads — Accepts all AtlasIED PD Series drivers (PD30, PD-5, PD60) and most standard-thread industry compression drivers for maximum flexibility.
• 110 dB SPL (1W/1m) — High efficiency with the recommended PD60 driver enables loud, clear paging in noisy industrial and outdoor environments without oversized amplification.
• 300 Hz Low-Frequency Cutoff — Extended low-frequency response relative to smaller horns provides improved vocal intelligibility and paging clarity.
• Indoor/Outdoor Rated — Environment-resistant materials and construction make the CD94 suitable for covered outdoor installations, loading docks, transit platforms, and similar applications.

Typical Applications

• House of worship
• Auditorium
• Multi-purpose room
• Commercial meeting space
• Government space

Technical Specifications

Frequently Asked Questions

Q: What drivers are compatible with the CD94?

A: The CD94 uses standard 1-3/8"-18 female threads and is compatible with all AtlasIED PD Series compression drivers including the PD30, PD-5, and PD60 Series. Most industry-standard drivers with the same thread specification will also fit.

Q: How does a constant directivity horn differ from a standard conical horn?

A: A conventional conical horn narrows its dispersion pattern at higher frequencies, creating uneven coverage. The CD94 maintains a consistent 90° horizontal pattern from 900 Hz to 6 kHz, producing more uniform SPL across the entire coverage area.

Q: Can the CD94 be used outdoors?

A: Yes. The polyester resin and glass-fiber laminate horn body with die-cast zinc throat is designed to be environment-resistant for both indoor and outdoor applications, including covered outdoor areas like loading docks, transit platforms, and stadium concourses.

Q: Can multiple CD94 units be clustered?

A: Yes. The CJ46-style mounting bracket supports both horizontal and vertical positioning with positive lock, enabling single-unit and stacked multi-unit cluster configurations for wider or asymmetrical coverage requirements.

Q: What amplifier power is recommended?

A: The CD94 achieves 110 dB SPL at 1W/1m with the PD60 driver, so amplifier requirements will depend on target SPL and throw distance. Consult AtlasIED driver specifications and project coverage calculations to determine proper amplifier sizing.

Q: What is the warranty on the CD94?

A: The CD94 is backed by AtlasIED's standard commercial product warranty. Contact Creation Networks or AtlasIED for current warranty terms applicable to your installation.