Speco SP5MATB In-ceiling Speaker 5.25 in 25/70V

Product Description

The SPECO SP5MATB is a 5.25-inch in-ceiling speaker with an integrated back box, designed for distributed audio installations operating on 25-volt or 70-volt transformer-based systems. This type of speaker is a standard component in commercial and light commercial paging, background music, and life-safety audio systems. The back box enclosure improves acoustic performance by isolating the driver from open plenum space and provides a defined air volume for more consistent low-frequency output. Audio technicians and low-voltage installation contractors are the primary trades who specify and install this unit.

The SP5MATB is suited for drop-ceiling and drywall-ceiling installations in commercial environments such as offices, retail spaces, restaurants, schools, and healthcare facilities. The 25/70-volt design allows multiple speakers to be wired in parallel on a single amplifier circuit without complex impedance matching, which is the standard approach for distributed audio in commercial builds. The included back box makes this unit appropriate for plenum-rated ceiling spaces where an open-back speaker would not be acceptable or would perform poorly.

Key Features

• 5.25-inch driver in a self-contained assembly with integrated back box
• 25-volt and 70-volt transformer compatibility for distributed audio systems
• Back box enclosure improves acoustic isolation and low-frequency response in open plenum installations
• In-ceiling form factor suits flush-mount commercial applications
• Sold as a single unit (each)

Compatibility

Designed as an OEM-style replacement or new-installation component for 25-volt and 70-volt distributed audio systems commonly found in commercial in-ceiling speaker applications.

Installation Notes

Installation should be performed by a licensed low-voltage contractor or qualified audio systems technician in accordance with applicable local codes and NEC Article 725 for low-voltage wiring. De-energize the amplifier and disconnect the speaker circuit before making any wiring connections. The back box must be secured properly to the ceiling structure to prevent movement and ensure a consistent seal. Verify transformer tap settings match the amplifier output voltage before powering the system.