Why measure? Using a microphone vs doing it by ear.

You might need to take measurements for:

• finding the best place to put a subwoofer and other speakers
• crossover design
• find out what is causing boomy bass in your room
• find out if the new tweeter really is a drop in replacement
• to see if anything is wired out of phase
• to choose the best settings to integrate your subwoofer
• find out what those bass traps are actually doing.

Every system can potentially benefit