Speaker/Amplifier Diagnostics: Notes

Always compare the front speakers to front, and rear speakers to rear. Do not compare front speaker to rear speaker because they could be different speakers or their mounting environment could cause them to sound different.

The 3 basic tones used to test and evaluate coaxial speakers, or other complex speaker systems, are a 50 Hz sine tone, 500 Hz warble tone, and a 9k Hz spectral tone. The combination tone is a blend of the above three tones.