Put the summary of the bug you're having here
What I expected to happen was...:
No sound from dispenser when far away from it
What actually happened was...:
Dispenser clicking heard from over 35 blocks away
Steps to Reproduce:
1. Redstone clock connected to dispenser
2.Listen from 35 blocks away
Environment
Put your operating system (Windows 7, Windows XP, OSX) and Java version if you know it here
Duplicate of MC-146297