Round Surface Mount Ceiling Speakers – Direct-Install Architectural Paging Loudspeakers

Engineered for concrete slabs, solid ceilings, and industrial spaces where cutting ceiling holes is impractical, our round surface-mount ceiling speakers provide an elegant housing enclosure with effortless direct-screw installation. Featuring integrated 70V/100V matching transformers and high-efficiency full-range drivers, they deliver clear voice paging and robust background music for retail shops, warehouses, offices, and transit hubs.

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Key Advantages for Audio Contractors & System Integrators

No-Cut Surface Mount Installation

Designed with an integrated rear acoustic enclosure and mounting bracket allowing direct surface attachment to concrete, brick, or solid wood ceilings without ceiling cavity cutting.

Multi-Tap 70V / 100V & 8Ω Transformer

Equipped with built-in multi-wattage tappings for long-distance distributed constant voltage speaker lines, plus an 8-ohm bypass mode for standard low-impedance amplifiers.

Durable Metal or Flame-Retardant Enclosure

Constructed with a heavy-duty steel backbox or high-grade flame-retardant polymer housing to withstand harsh commercial environments and ensure fire safety compliance.

Technical Specifications

Technical Parameter	Specification Details
Installation Type	Round Surface-Mount Enclosure (Direct Ceiling / Wall Screw Fixing)
Driver Options	5.25" / 6.5" / 8" Full-Range Dual-Cone or Coaxial Driver Unit
Power Tappings (100V)	3W, 6W, 10W, 15W / 20W Multi-Tap & 8Ω Low-Impedance Selection
Frequency Response	90Hz – 18kHz
Sensitivity (1W / 1m)	91 dB ± 3dB
Housing & Grille Material	Cold-Rolled Steel Enclosure / Flame-Retardant ABS with Epoxy Coated Steel Mesh Grille
Dimensions / Weight	Model Dependent (Compact Profile with Side Cable Knockouts)

Target Applications & System Integration

Round surface-mount speakers provide an ideal audio solution when ceiling cavity access is restricted. Explore our complete Surface-Mount Ceiling Speaker Series, check our Fire-Rated Back Box Ceiling Speakers for enclosed plenum requirements, or browse our Commercial Recessed Ceiling Speakers for dropped tile installations.

Concrete Ceilings & Solid Slabs: Perfect for commercial corridors and parking structures without hollow ceiling spaces.
Warehouses & Industrial Plants: Robust steel housing capable of withstanding demanding industrial environments.
Retail Outlets & Corridors: Clean, low-profile round enclosures matching modern interior aesthetics.

OEM / ODM Customization & Direct Factory Supply

We manufacture custom round surface-mount ceiling speakers for global audio brands and engineering distributors. Factory OEM customization includes custom housing colors (RAL matching), transformer wattage tappings, ceramic terminal blocks, thermal fuses, logo branding, and export packaging.

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C33 is a round surface mount ceiling speaker engineered for installations where built-in speakers are impractical. Equipped with a 4-inch driver and a 70V/100V transformer, it operates in high-voltage/low-current mode to ensure efficient audio distribution over extended distances.It is great for announcements, background music, and public address systems, especially in indoor environments where clear sound and easy installation are needed.

Key Features

Customized services: We offer customization of a 5-inch driver unit, custom branding, tailored packaging, and configurable internal components to meet specialized requirements.
Versatile Transformer: The integrated 100V transformer features dual power taps for adaptable installation configurations.
Robust Build: Constructed from premium-grade plastic materials for enhanced durability.
Simplified Installation: designed on an open-installation basis, so as to relieve the procedure for cutting the hole.