Blake, you live in a high rise residential unit. If you ever become aware of a fire, you would have lost precious time to evacuate the building. Imagine how long it would take you then to climb down the stairs to the bottom floor. If you haven't already, notify the property management company to contact their Fire Alarm Servicer to trouble shoot the wiring or the system. Although the notification devices in the corridors are activated, that horn should sound also, but at a slightly lower decibel. This is a life safety issue, and if there was a fire, you could be still sound asleep. If your property manager doesn't act, light a fire under their ass and contact the fire marshall. You can't hear anything all the way back to your master... I'd be scared to find out what else in the fire life safety system doesn't operate properly. Let me know how it works out...