Car Audio Speaker Test Phase Meter Speaker Positive and Negative Test Phase Meter for Adjusting Speaker Wiring of car Audio System, Phase Tester

How to Use: Test disc content: The first segment: left channel noise signal. The second segment: the noise signal of the right channel. The third section: phase test signal. The fourth section: phase test signal. Adjustment of speaker wiring After the sound system is installed, put the test disc into the host first, and adjust the volume output to the appropriate position. Then follow the steps below. Step 1: Select the first and second paragraphs respectively. Check whether the left and right channels are reversed when connected. Step 2: Choose the third or fourth paragraph. Check whether the phase of the left and right channel speakers is correct. Place the front end of the phase meter (with a microphone in the instrument), approach and face the speaker under test, press the power switch of the phase meter, the green light flashes three times and the red light flashes once, indicating that the speaker output is positive phase. The green light flashes once and the red light flashes three times, indicating that the output is negative phase. If the phase is wrong, you can reverse the wiring at both ends of the speaker. The yellow light indicates that the battery of the phase meter is low and needs to be replaced. Application: Universal Battery Type: Lithium battery Battery Model: 6F22(shipped without batteries) Package List: 1 x Phase Tester1 x CD