How long should an AV system last before refresh?
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A commercial AV system typically lasts 5 to 7 years as a whole room before a refresh is warranted, although individual components have very different lifespans. The refresh decision is rarely driven by hardware failure; it is driven by platform deprecation, warranty expiry and manufacturer end-of-life support.
| Component | Typical lifespan | What ends it |
|---|---|---|
| Commercial displays | 6 to 8 years | Backlight degradation, brightness loss (consumer TVs only 2 to 4 years, hence the price gap) |
| VC bars and cameras | 4 to 6 years | Platform evolution (Teams, Zoom, Webex feature cadence), AI camera generations |
| Control processors (Crestron, Q-SYS) | 8 to 10 years | Firmware end-of-life, network security standards |
| DSP units (Biamp Tesira, Q-SYS Core) | 8 to 10 years | Manufacturer support window, audio standard changes |
| Loudspeakers and amplifiers | 10+ years | Cone fatigue, component capacitor failure |
| Cabling (Cat6A, fibre) | 15+ years | Bandwidth ceiling, structured cable standard changes |
Refresh triggers that override age. Platform deprecation drives most early refreshes: Skype for Business to Teams forced a hardware refresh across the UK in 2021, and Webex Edge to Cloud migrations are doing the same now. Other forcing events include warranty expiry, manufacturer end-of-life notices (no more firmware or security patches), loss of security certification (e.g. Teams Rooms certified status revoked), and software incompatibility with current Windows or ChromeOS builds.
A planned refresh cycle works better than reactive replacement. Building lifecycle costs into a structured support contract or rolling them into an AV-as-a-Service subscription spreads the spend and keeps platform certification current. The trap is mixing 4-year VC kit with 10-year control gear and discovering the room cannot pass a single coherent refresh because the parts are at different points in their cycles.
Quick reference: displays 6-8y, VC bars 4-6y, control processors 8-10y, DSP 8-10y, speakers 10y+, cabling 15y+; whole-room refresh typically 5-7y driven by platform deprecation more than hardware failure.
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