QSC AD-MR4 4.5" 2-Way Surface Mount Loudspeaker with 70V/100V Transformer, Weather Resistant, Black

Provide clear, reliable audio for paging, monitoring and security applications with the QSC AD-MR4 4.5" 2-way surface mount loudspeaker. Part of QSC's AcousticDesign line, this weather-resistant loudspeaker is built for commercial indoor/outdoor use and delivers intelligible voice announcements and background music where consistent coverage matters. The compact 4.5" woofer and dedicated tweeter form a 2-way system that maximizes clarity for surveillance and security monitoring, while the integrated 70V/100V transformer supports easy connection to centralized paging systems and long‑run cable deployments. The rugged enclosure, corrosion-resistant hardware and UV-stable black finish ensure long-term performance on building exteriors, parking facilities, transit hubs and retail environments. Designed for pro AV and low-voltage installers, the AD-MR4 reduces install time and lifecycle costs without sacrificing sound quality. Ideal for public address, voice evacuation and monitoring use cases—specify the QSC AD-MR4 for dependable, discreet audio coverage. Contact your sales representative or add to cart to specify this speaker for your next security, surveillance or facility audio project.

• Weather-resistant surface mount design delivers reliable paging and background audio outdoors and in harsh environments
• Built-in 70V/100V transformer simplifies long‑line commercial installations for distributed paging and public address systems
• Compact 4.5" 2-way driver provides clear voice intelligibility for security monitoring, surveillance audio, and voice evacuation
• Low-profile black finish blends with architecture and reduces visual impact for retail, transportation and institutional deployments
• Fast installation and low-voltage compatibility reduce labor time and total cost of ownership for integrators and AV contractors