QSC AD-S4T-WH 4.5” Surface Speaker – 70/100V / 8Ω Bypass, 120° Coverage, X-Mount, Weather Input Cup, White (Pair) (AD-S4T-WH)

QSC AD-S4T-WH 4.5” Surface Speaker

(70/100V / 8Ω Bypass Installation Speaker – 120° DMT™ Coverage, X-Mount™, Weather Input Cup, White | Sold Per Pair)

The QSC AD-S4T-WH is a professional 4.5-inch 2-way surface-mount installation speaker designed for high-quality background and foreground audio in commercial and architectural environments. Part of the QSC AcousticDesign™ Series, it delivers excellent clarity, wide coverage, and flexible installation options for distributed sound systems.

Engineered with DMT™ (Directivity Matched Transition) technology, the AD-S4T-WH provides a consistent 120° conical coverage pattern, ensuring even sound distribution across listening areas with smooth tonal balance. This makes it ideal for venues that require fewer speakers while maintaining uniform sound coverage.

The speaker supports both 70/100V constant-voltage systems and 8Ω bypass operation, giving installers maximum flexibility for different system designs. It also includes the QSC X-Mount™ system, allowing secure, adjustable wall or ceiling installation, along with a weather-protected input cup for added durability in challenging environments.

Key Features

• 4.5” 2-way surface-mount installation speaker (white finish)
• 70/100V transformer with 8Ω bypass for flexible system design
• 120° conical DMT™ coverage for wide, even sound distribution
• Designed for background and foreground music applications
• Part of QSC AcousticDesign™ Series for professional installations
• Includes QSC X-Mount™ bracket system for flexible positioning
• Weather-protected input cup for improved durability and safety
• Smooth frequency response for clear speech and music reproduction
• Rugged enclosure built for long-term commercial use
• Ideal for retail, restaurants, hotels, offices, and venues
• Sold per pair for stereo or multi-zone installations