Mic/Instrument Level

A microphone needs an amp to reach line level.

Speaker Level

Needs a power amplifier to be powered.

Types of adjusment

• Voltage Adjustments: R2 > R1 (MICROPHONES)
• Current adjustment: R1 > R2 (IMPEDANCE)
• Power adjustment: R1=R2 (SPEAKERS)

Audio Levels

Consumer (-10dBV)

Used for home and personal use.

Professional

Differences