The dedicated speaker test equipment in this section will help diagnose faults in your speaker system and check that you are getting the best results. The speakers tester, when connected directly to a speaker cabinet, will apply a low level test tone, so you can check directly if the speaker is functioning. The universal cable tester will check all the standard types of speaker lead and verify that they are functioning correctly and finally you can check the phase performance of your system. The phase checker will check that the speakers are working in phase, ensuring that you do not cancel bass and have the correct stereo imaging.