Specifications

EAW Smaart 6 Operation Manual Applications

Figure 4-8 Speaker/amp measurement setup

4.3.1 Adjust Signal Levels

1. Position the measurement microphone about 1 meter (3.3 ft) from the loud-

speaker. As the mic’s distance from the loudspeaker increases, it becomes more

difficult to discern the loudspeaker’s direct sound from the room’s reflections.

2. Click the Spectrum button to display the standard Spectrograph (top) and RTA

(bottom) graphs.

3. Click the Start button to turn the analyzer on.

4. Activate the internal signal generator and adjust its level until the loudspeaker

is significantly louder than the room’s ambient noise. Start with a low amplifier

gain and slowly increase it to avoid damaging your hearing or equipment.

5. Adjust the input levels on the sound card and mic preamp to achieve a proper

input level (see Figure 1-2).

6. For best results, match the reference and measurement input levels as closely

as possible (see page 76).

Amplifier

Measurement

Microphone

Preamp

Loudspeaker

Measurement

Signal

Reference Signal

Computer

Line Out