Logitech Z625 Powerful THX Sound Repair

The Z625 Powerful THX Sound is a THX-certified 2.1 speaker system designed to deliver high-fidelity audio for gaming, movies, and music. It produces up to 400 watts peak (200 watts RMS) of amplified power and includes an integrated powered subwoofer and a pair of satellites. The system features an optical input for digital sources and a versatile set of analog connections for easy setup. The enclosure and components are built from durable materials and designed with sustainability considerations in mind.

The Logitech Z625 Powerful THX Sound can be identified by the model number (M/N S-00159). The model label is on the rear panel near the power and input connections. This label lists the model (M/N), part (P/N), and serial (S/N) numbers.

• Form Factor: 2.1 desktop/home speaker system (satellites + powered subwoofer)
• Certification: THX Certified
• Power (Peak/RMS): 400 Watts Peak / 200 Watts RMS
• Model / SKU / MPN: Model: Z625 Speaker System with Subwoofer and Optical Input; SKU: 980-001258; MPN: 980-001258
• Connectivity: Optical (TOSLINK) digital input; analog inputs (product page lists optical input explicitly; other analog inputs not fully specified)
• Subwoofer: Integrated powered subwoofer (active, model label on rear); size and driver specs not specified on product page
• Satellite Speakers: Pair of powered satellite speakers (full-range); exact driver models/sizes not specified on product page
• Amplification: Built-in amplification (internal power amplifier for subwoofer and satellites)
• Frequency Response: Not specified on product page
• Impedance / Sensitivity: Not specified on product page

Common faults include no power or no audio output (often caused by faulty cables, incorrect input selection, or blown internal fuses) and distorted or intermittent sound (frequently due to damaged drivers or loose connections). Diagnose by checking the power indicator and mains connection, testing the optical and analog cables with a known-good source, swapping inputs, and listening for behavior changes at different volumes; if satellites are quiet, swap speaker connectors to isolate a bad driver or wiring.

For additional troubleshooting help, visit: Contact Logitech Support via support.logi.com for product help, FAQs, and contact options.

See Logitech warranty information on the support site; warranty terms vary by region—use the product SKU (980-001258) when contacting support.

• https://www.logitech.com/en-us/shop/p/z6...
• https://support.logi.com/hc/en-us/articl...