Lowell CT830A‑T72 8" Coaxial Speaker with 25V/70V Transformer, 20W

The Lowell Manufacturing CT830A‑T72 is a commercial-grade 8" coaxial pro speaker engineered for dependable paging, public address and background music in security, surveillance and facilities monitoring environments. With a 20W coaxial driver and a selectable 25V/70V transformer (taps at 0.25–5W), the CT830A‑T72 lets integrators tailor output for multi-zone systems and paging applications while minimizing amplifier load. High average sensitivity (97.4 dB) and an 80° conical dispersion provide efficient, consistent coverage across lobbies, corridors, guard stations and retail spaces. Built on a 20‑gauge zinc-plated stamped steel frame with a protective ceramic magnet design, this pro speaker balances audio performance with durable, low-profile installation — the assembly fits in a 3.2" mounting depth for constrained spaces. Ideal for security suites, monitoring rooms and commercial PA systems, the CT830A‑T72 delivers intelligible voice announcements and unobtrusive background music. Order compatible grille and enclosure separately and specify transformer taps for your zone layout; contact our team to confirm mounting and installation options.

• Reliable 20W coaxial output for clear paging and background music in commercial spaces
• Dual-voltage 25V/70V transformer with taps from 0.25–5W for flexible zone and volume control
• 8" coaxial driver with high sensitivity (97.4 dB) for efficient sound with less amplifier power
• Wide 80° dispersion for uniform coverage in corridors, lobbies, and monitoring stations
• Shallow 3.2" mounting depth and durable steel frame for easy installation and long service life