how to tell if my new headphones are fake or have a faulty driver
Test both sides with the Left Right Test, then play a sweep. If one side differs in level, bass or crackle, document it and return the pair within…

Headphone Benchmark Lead at Sound Test
Alistair Cross is the Headphone Benchmark Lead on the Sound Tester Audio Team. Expert in transient response tracking, left/right separation, and driver matching for studio monitors.
Alistair Cross is the Headphone Benchmark Lead on the Sound Tester Audio Team. Expert in transient response tracking, left/right separation, and driver matching for studio monitors. Shares high-end headphone benchmarks and hardware metrics on LinkedIn. On Sound Tester he answers discussions about weak or uneven headphones, mismatched drivers and buying questions, and checks fixes with the Headphone Test and Left Right Test.
Test both sides with the Left Right Test, then play a sweep. If one side differs in level, bass or crackle, document it and return the pair within…
High impedance headphones like 250 ohm need more power than a laptop jack can give. Use a headphone amp or DAC, and also check the Loudness…
Check the serial number on Apple's coverage page, compare pairing animation and run a Left Right Test. Flat sound and missing features are warning…
Bring your phone and use the Left Right Test, check cable wiggle and ear pad condition, and ask for the serial number.
A fault after 30 days may still be covered by the maker's warranty or consumer law. Gather proof and contact the maker.
Pads that have gone flat or cracked reduce bass. Replace the ear pads and compare with a Frequency Sweep.
Low volume at maximum often means high-impedance headphones or a weak laptop output. Check the Loudness Equalization and consider a small DAC or amp.
Crackling that follows cable movement points to a damaged cable or plug. Test another cable if the headphones are detachable, otherwise repair or…
No bass is often a poor seal. Try other ear tip sizes, press the bud in and run the Bass Test to compare both sides.
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