
Developing AV System Architecture & Equipment Specifications
Learning objectives
- Define the system architecture from requirements.
- Select equipment types for each function.
- Write equipment specifications.
- Justify selections against requirements.
Lesson content
Architecture is the shape of the system: which devices, how they connect, and how control flows. Equipment specifications turn that shape into a buyable, buildable list.
Architecture decisions
- 1Sources: laptop BYOD (HDMI/USB-C); conferencing via codec.
- 2Video routing: matrix switcher to dual displays; extend with HDBaseT or AV-over-IP as needed.
- 3Audio: ceiling/table mics → DSP (AEC, automix, EQ) → amp → ceiling speakers.
- 4Control: processor + touchpanel; IP/serial to devices; status feedback.
- 5Network: VLANs for control, Dante, and AV-over-IP; PoE for panel and endpoints.
Equipment specifications
- Specify by function and performance, not just model: '4K@60 switcher, 4 inputs × 2 outputs, IP control.'
- Note power (mains vs PoE), mounting, and cooling for each.
- Match the room size and participant count to speaker and mic coverage.
- Choose active vs passive speakers with a reason.
For every device, be able to say why it is there and why this type. A spec you can defend is a spec you can build and service.
Worked example
Architecture: laptop + codec → 4×2 matrix switcher → two 75" displays; ceiling mics → DSP (AEC/automix/EQ) → 8-channel amp → four ceiling speakers; control processor + 10" touchpanel; PoE switch with control/Dante/video VLANs. Spec justifies each choice against the hybrid-meetings and easy-control requirements.
Implementation checklist
- ✓Architecture defined per function (video, audio, control, network).
- ✓Equipment specified by function and performance.
- ✓Power/mounting/cooling noted.
- ✓Each choice justified against a requirement.
Downloadable study guide
01. Architecture = devices + connections + control flow for each function. 02. Spec by function/performance, not just model; note power, mount, cooling. 03. Justify each device against a requirement.