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Output test on amp

Is there a way to test frequency response vs dB output with a test record and multimeter?

im trying to determine if both channels are outputting all frequencies at equal outputs. 
If not is there another way to achieve this at home. 
last_lemming

Showing 1 response by imhififan

imhififan's avatar
imhififan
2,227 posts
 
I believe erik’s suggestion using REW (Room EQ Wizard) is an inexpensive way to do the test. Just download the REW software (it’s free) into your computer, connect the amplifier speaker output to the computer sound card "LINE IN" via a voltage divider, connect the "LINE OUT" to the amplifier input and you can start measure SPL level one channel at a time by using the software generated signal sweeps from 5Hz to 20kHz.

https://www.roomeqwizard.com/
https://www.epanorama.net/circuits/speaker_to_line.html

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