EDL-28 PA Ceiling Speaker - 100V 10/5/2.5/1.25WRMS

Monacor EDL‑28 PA Ceiling Speaker

The Monacor EDL‑28 is a professional-grade 100 V line PA ceiling speaker designed for commercial environments such as offices, retail spaces, schools, and light industrial facilities. Ideal for installers and sound engineers, it delivers reliable performance with flexibility in power output and an installer-friendly design.

Overview

• Designed for 100 V public address systems with selectable power taps (10 / 5 / 2.5 / 1.25 W).
• Suitable for rooms requiring clear announcements, background music, or voice evacuation.
• ABS plastic housing with flame‑retardant UL 94 V‑0 rating, built‑in transformer, and metal grille.
• Engineered to fit ceilings 10-40 mm thick, ensuring easy installation.

Design and Build Quality

The EDL‑28's enclosure is constructed from flame‑retardant ABS plastic (UL 94 V‑0), providing both lightweight ease and robust durability. A sturdy metal grille protects the dual‑cone full‑range loudspeaker while maintaining acoustic transparency. Installation depth of only 75 mm and a standard Ø240 mm cut‑out simplify retrofit and new‑build applications, supporting ceiling thicknesses from 10-40 mm [oai_citation:0?Monacor](https://www.monacor.com/products/edl-28/?lang=en&r=pdf&utm_source=chatgpt.com).

Key Technologies and Features

• Integrated 100 V transformer with selectable power taps allows for precise coverage control and efficient use of amplifier output.
• Full‑range dual‑cone loudspeaker ensures balanced audio across speech and light music.
• Metal grille & flame‑retardant housing boost protection and safety compliance.
• Easily removable grille speeds up installation and maintenance.
• Slim mounting depth supported by a 75 mm profile--ideal for shallow ceiling voids.

Specifications

Performance and User Experience

In real‑world installations, the EDL‑28 delivers clear speech intelligibility and clean background music at moderate volumes. With selectable power settings, installers can fine‑tune coverage and match amplifier capacity. Its compact 75 mm mounting depth is ideal for suspended ceilings or shallow voids. Built with flame‑retardant materials and a protective grille, it offers long‑term reliability with minimal maintenance required.

Ideal for commercial spaces, classrooms, boardrooms, retail stores, and corridors where speech clarity and straightforward installation are essential. Not optimised for high‑fidelity music or outdoor acoustics.

Q&A Section

• Is the EDL‑28 suitable for music playback? Yes--for light background music. For higher fidelity or deeper bass, larger or dedicated music speakers are recommended.
• Can multiple units be used together? Yes--just add the power taps to ensure total wattage doesn't exceed your amplifier's output.
• Is it compatible with 70 V systems? No--it's designed exclusively for 100 V systems common in Europe and the UK.
• What ceiling thickness is allowed? 10-40 mm. For thinner panels, consider reinforcing the surface or using a back box.
• How is it installed? Cut a Ø240 mm hole, wire the transformer leads to the matching colour-coded power taps, insert and secure using four screws, then reattach the grille.