Forensic Comparison

Sony ZX Series Wired On-Ear Headphones VS Grado SR325x Prestige Series Headphones

REF #277
BB

Sony ZX Series Wired On-Ear Headphones

Cost Per Year
$12.98/yr
MSRP
$14.99
Horizon
2.00 Years
Waste Factor
0x Units Avoided
Full Audit
REF #286
AA

Grado SR325x Prestige Series Headphones

Cost Per Year
$30.13/yr
MSRP
$295
Horizon
20.00 Years
Waste Factor
0x Units Avoided
Full Audit

Financial Trajectory

Audit Winner
Grado SR325x Prestige Series Headphones
NPV Cost:$549
$0$137$274$412$549Yr 0Yr 10Yr 20Yr 30Yr 40Yr 50
Winner
Disposable Baseline
MetricSony ZX Series Wired On-Ear HeadphonesGrado SR325x Prestige Series Headphones
MSRP$14.99$295
20-Year TCO$193$448
Cost Per Year$12.98/yr$30.13/yr
Waste FactorStandardStandard

Failure Threat Matrix: Sony ZX Series Wired On-Ear Headphones

  • Cable shortage/fraying
    Risk: High
    Avoid wrapping cable tightly around headphones. Use gentle storage.
  • Ear pad disintegration
    Risk: High
    Replace pads when flaking begins ($10). Keep away from sweat/moisture.
  • Hinge plastic fracture
    Risk: Medium
    Fold gently; do not force the folding mechanism.

Failure Threat Matrix: Grado SR325x Prestige Series Headphones

  • Cable Failure
    Risk: Medium
    Avoid tightly wrapping the cable; untwist regularly. Repair requires soldering.
  • Grattle (Driver Buzzing)
    Risk: Medium
    Remove pads and gently blow air or use tape to remove hair stuck to the driver.
  • Foam Disintegration
    Risk: High (Definite over time)
    Replace pads every 2-3 years ($25).

Efficiency Verdict

Analysis confirms that Sony ZX Series Wired On-Ear Headphones provides the superior ROI over a 20-year horizon, saving approximately $17.15/yr compared to the alternative.