Logitech Z623 2.1 Speaker System Review HomeTheaterHifi.com Logitech Z623 Review: Amazing 2.1 Sound Game Gavel Logitech Z623 2.1CH PC Speaker System Logitech Z623 2.1 Speaker System, THX Certified Newegg.com LOGITECH Z 623 Speaker system for PC 2.1channel 200 Watt Total. Overview Logitech Speaker System Z623 delivers 200 watts (RMS) of power in a THX Certified systemfor big, bold audio. Multiple inputs let you connect your music, movie, and gaming devices. Key Features THX CertifiedYouve got quality you can count onthese speakers have met strict performance standards to achieve THX certification. 200 watts (RMS) of powerAs loud as you want it. Youll hearand feel immersive audio that brings music, movies, and games to life. Multiple inputsMake everything you listen to sound better with convenient RCA and 3. 5 mm inputs for music, movie, and gaming devices. Powerful 2. 1 systemEasy, two satellite setup and a powerful subwoofer give you big soundeven in large spaces. Integrated controlsYoure in commanddial the volume and bass up or down to customize your listening experience. Built in headphone jackWhen you want to listen privately, just plug in your headphones.