APPLICATION EXAMPLES 
  49 
Speaker Driver Test 
Description 
Use SFG-2000 series for testing the frequency 
characteristics of audio speakers. Record the volt reading 
versus the input signal frequency. 
Block diagram 
 
Graph 
The peak voltage occurs on the resonant frequency of  
the speaker. 
Frequency (Hz)
Peak of Audio Drive Response
Correspondent
Response (dB)
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