Choose the acoustic and power architecture first
A horn speaker is a directional paging endpoint, not merely a louder ceiling speaker. Preserve the intended audience, ambient-noise range, mounting height, aiming, obstructions, reverberation, required intelligibility and safe exposure limits before selecting an endpoint. Algo's current portfolio separates the PoE 8186, PoE+ 8196 with optional 1196 satellites, IPX9 8197 with 1197 satellites and mains-plus-PoE 8507 horn array.
Those are different power and coverage architectures. A higher published maximum sound-pressure figure is not proof of better intelligibility or safer coverage at an installed location. Use qualified acoustic design and site verification for the actual space.
Separate IP endpoints, satellite speakers and arrays
The primary IP endpoint owns network identity, SIP state, multicast configuration, provisioning and monitoring. A 1196 or 1197 satellite is a non-IP extension powered and supervised by its matching primary speaker. Adding satellites shares the primary speaker's available audio power; it does not multiply the published total power or create additional SIP registrations.
The 8507 is different again: its seven-horn array requires both AC mains and PoE. Treat electrical isolation, local disconnect, PoE signaling, physical load, bracket, aiming and maintenance access as separate design responsibilities.
Model coverage before mounting
Algo's coverage guide says its values are theoretical and recommends acoustic modelling plus a qualified site visit before final deployment. Horns pointed at one another can increase reverberation and distortion, while racks and other opaque obstructions can shadow audio. Preserve the model, orientation, aiming angle, distance, listener plane, background noise, message spectrum and overlap assumptions.
A successful bench page does not establish coverage. Commission representative locations under expected operating noise, using intelligibility and exposure criteria selected by the responsible safety and acoustic authorities.
Keep SIP paging and multicast reception distinct
A SIP-registered speaker can receive a direct page or act as a multicast transmitter. Multicast receivers listen to the configured IP address and port and may not need individual SIP registration. Match zone addresses, ports, codecs and priority order end to end; a registered transmitter does not prove that switches forwarded multicast or that every receiver played it.
Also distinguish live voice, stored alert files, loud ringing, talkback and ambient-noise sensing. They can use different extensions, priorities, microphone states, codecs and acceptance evidence.
Commission environment, supervision and safety
Outdoor suitability remains exact-model and installation-specific. The 8196 guide limits outdoor use to a properly installed building perimeter and requires lightning protection where network wiring leaves the perimeter. The 8197 and 8507 publish IPX9 boundaries, but ingress rating does not replace mounting, drainage, cable-gland, surge, corrosion, structural and electrical review.
Monitor power, link, registration, provisioning, multicast role and connected satellites where supported. A green device state does not prove audible coverage, correct message content, human comprehension or responder action. Horn speakers can participate in emergency notification, but they are not represented here as a complete or listed life-safety system.
Sources & applicability
Primary references for the technical details above. Operational examples and planning checklists are VoIP.info editorial guidance.
- Algo current IP-speaker portfolio ↗
- Algo speaker documentation index updated September 28, 2026 ↗
- Algo speaker coverage and placement guide ↗
- Algo 8196 product page ↗
- Algo 8197 product page ↗
- Algo 8507 product page ↗
- Algo multicast guide ↗
Examples require adaptation to your topology. No live PBX or hardware testing is claimed.