Build your first speaker

Basic · Audio fundamentals

Impedance

Impedance is the electrical load the amplifier sees. It changes with frequency, so a speaker marked 8 ohms is not 8 ohms everywhere.

Basic · Audio fundamentals

Sensitivity

Sensitivity tells you how loud a speaker gets from a known input. It helps estimate output, amplifier needs, and how well drivers will match.

Basic · Enclosures

Sealed vs ported

A sealed box traps the rear wave in an airtight cabinet. A ported box uses a tuned vent to add bass output around tuning.

Basic · Audio fundamentals

Frequency response

Frequency response shows how loud a speaker is at each frequency. It helps reveal balance, crossover behavior, box tuning, and room problems.