Atlas Sound AS-4T-W – 4" IP55 All-Weather Surface Mount Speaker White (Pair)

Product Overview

The Atlas Sound AS-4T-W is a 4-inch all-weather commercial surface mount speaker in white finish, sold as a pair, for use in 70V/100V distributed audio systems in indoor and outdoor commercial environments. Rated IP55 for dust and water resistance, the AS-4T-W is designed for demanding installation conditions including high humidity, rain exposure, and high UV environments. The 15-watt 70/100V transformer, optimized for both efficiency and frequency flatness in the critical speech and music bands, makes the AS-4T-W a strong performer in distributed systems where many competitors’ transformer designs produce audible coloration.

Product Description

The AS-4T-W is built around a 4.5-inch woofer and dome tweeter configuration in an ABS enclosure with UV inhibitor treatment, giving it durability in outdoor and semi-outdoor settings without sacrificing sonic performance. The acoustic design incorporates model-specific wave guides developed through extensive laboratory measurement and listening evaluation, resulting in even coverage that serves both speech intelligibility and music reproduction accurately. The high-efficiency 15-watt transformer is a key differentiator: Atlas Sound engineered the transformer specifically for flatness in the frequency regions most critical to intelligibility and music quality, addressing a common weakness in small commercial speakers where transformer saturation causes audible midrange coloration. The included color-matched white C-bracket with hardware covers provides a clean, finished installation aesthetic and supports preset adjustment angles for consistent aim across multiple speakers in a coverage zone. Additional mounting flexibility is provided through VESA-compatible mounting hardware built into the enclosure, allowing third-party mounts to be used where the C-bracket does not meet the installation geometry requirements. An optional universal mount is available separately for installations requiring more adjustment range. The powder-coated aluminum grille is color-matched white, providing corrosion resistance in outdoor environments. The AS-4T-W ships as a pair, reducing per-unit cost and simplifying ordering for standard stereo or dual-mono distributed audio runs.

Key Features

• IP55 Ingress Protection Rating — Rated for dust and water resistance, suitable for outdoor, semi-outdoor, and high-humidity indoor environments.
• 4.5" Woofer with Dome Tweeter — Full-range 2-way driver configuration covers both speech and music program material accurately.
• High-Efficiency 15W 70/100V Transformer — Engineered for frequency flatness in critical speech and music bands, avoiding the midrange coloration common in competitor designs.
• Model-Specific Wave Guide Design — Developed through laboratory testing and listening evaluation for even coverage optimized to the AS-4T driver configuration.
• ABS Enclosure with UV Inhibitor — Resists UV degradation for long-term performance in outdoor or high-UV indoor installations.
• VESA Mount Compatible — Built-in VESA-standard mounting hardware allows use of third-party brackets for custom installation geometries.
• Color-Matched C-Bracket Included — White C-bracket with hardware covers and preset adjustment angles provides a clean, finished appearance.
• Powder-Coated Aluminum Grille — Corrosion-resistant grille material for outdoor and high-humidity environments.
• 8-Ohm Passive Design — Works with both 70/100V transformer systems and direct 8-ohm amplifier outputs.
• Sold as Pair — Two speakers per order simplifies procurement and reduces per-unit cost for standard two-speaker coverage configurations.

Typical Applications

• Commercial meeting space
• Conference room
• House of worship
• Multi-purpose room
• Government space
• Training room
• Boardroom

Technical Specifications

Frequently Asked Questions

Q: Can the AS-4T-W be installed outdoors?

A: Yes. The IP55 rating indicates protection against dust and water jets from any direction, making it suitable for covered outdoor areas, patios, overhangs, and semi-exposed locations. The ABS enclosure includes a UV inhibitor for long-term color and material stability in sun-exposed positions.

Q: Is the AS-4T-W compatible with 70V and 100V systems?

A: Yes. The built-in transformer supports both 70V and 100V distributed audio systems.

Q: Does the price include two speakers?

A: Yes. The AS-4T-W is sold as a pair — two speakers are included per order.

Q: What mounting options are available beyond the included C-bracket?

A: The AS-4T-W includes VESA-compatible mounting hardware on the enclosure, allowing any compatible third-party VESA mount to be used. An optional universal mount from Atlas Sound is also available separately for installations requiring wider adjustment range.

Q: Can the AS-4T-W be used on a standard 8-ohm amplifier output?

A: Yes. The speaker operates at 8 ohms in direct-coupled mode. Use the 70V/100V transformer taps for distributed audio runs.

Q: How is the speaker aimed after installation?

A: The included C-bracket provides preset adjustment angles for consistent aim positioning. For greater adjustment range, the optional universal mount offers independent vertical and horizontal angle adjustment.