Logitech A03 IN EAR MONITORS Repair

The A03 In Ear Monitors are wired in-ear headphones from Logitech designed for broad device compatibility (PS4, PC, Mac, mobile, Xbox One, Switch). They feature dual driver sizes (5.8 mm / 9.2 mm), an inline omnidirectional microphone, and a 3.5 mm CTIA connector for plug-and-play use. The design uses durable molded housings and reinforced cable strain relief to improve longevity, and the package includes multiple ear tip sizes and a carrying bag for transport. Audio specifications include a wide 20–20,000 Hz frequency response and low impedance suitable for portable devices.

The Logitech A03 IN EAR MONITORS can be identified by the model number (M/N A00133). The model label is on the cable. This label lists the model (M/N), part (P/N), and serial (S/N) numbers.

• Manufacturer: Logitech
• Model Number: A03
• Form Factor: Wired in-ear monitors with inline microphone
• Drivers: 5.8 mm / 9.2 mm dynamic drivers
• Channel Balance: +/- 3 dB at 1 kHz
• Total Harmonic Distortion: < 3% at 1 kHz
• Impedance: 16 Ω ±15%
• Frequency Response: 20 – 20,000 Hz
• Connector: 3.5 mm CTIA standard
• Cord Length: 1.2 m
• Microphone: 6.0 mm omnidirectional inline microphone
• Package Contents: A03 in-ear monitors, 3 sizes of eartips (small, medium, large), carrying bag, sticker

Common repair-relevant faults include cable fraying or intermittent audio at the 3.5 mm jack, failed drivers (no sound in one ear), and mic failure. Diagnose by testing with a known-good device and cable-wiggling at the jack and inline mic, swapping ear tips, and inspecting the cable and connector for visible damage; isolated driver failures require opening the housing and continuity/driver tests.

For additional troubleshooting help, visit: Visit https://support.logi.com for product support, contact options, and spare parts information.

Limited hardware warranty varies by region; check Logitech warranty information on the support site for coverage and claim procedures.

• https://www.amazon.co.uk/Astro-Headset-I...
• https://support.logi.com/hc/en-us/articl...