| Brand | Unbranded |
|---|---|
| Universal Fitment | Yes |
Check the listing for details. Professional Car Audio Phase Tester for Speaker Installation Verification. Condition: New. Listed at 17.21 USD. If the phase is incorrect, you can reverse the wiring at both ends of the speaker. 1 Phase Tester. The third paragraph: phase test signal. The speaker wiring is dedicated to the car audio system.
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