Logitech Z625 Speaker System with subwoofer and Optical Input (Powerful with THX sound) | GadgetLot
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Logitech Z623 2.1 Speaker System with THX Certified Audio
KimEnzo Gadgets - Logitech Z623 Home Speaker System • THX-certified 2.1 speaker system • 200 watts (RMS) gives you the power to listen as loud as you want • RCA and 3.5mm
Review: Logitech Z623 2.1 Speakers | TechCrunch
Logitech z623 Review
Logitech Z623 2.1 Speaker System (3-Piece) Black 980-000402 - Best Buy
Logitech Z623 Review • (and how it compares to the Z625)