Logitech Z623 400W 2.1 Speaker System | THX-Certified, Immersive Audio (Black)

Experience bold, room-filling sound

The Logitech Z623 blends THX-certified 2.1 audio into a compact setup designed for desks, shelves, or media centers. It aims to deliver clear high end, punchy midrange, and a powerful bass presence without overwhelming the space. With a combined peak output of 400 watts and 200 watts RMS, the system offers more headroom than typical computer speakers, making music, movies, and games feel more immersive.

Two satellite speakers (each 35 W) handle the upper and mid frequencies with precision, while a dedicated subwoofer (130 W) anchors the low end, producing a grounded, tactile bass that you can feel in your chest during action scenes or bass-driven tracks. This balance helps create a believable soundstage, whether you’re alone or entertaining guests.

Key specs at a glance

• THX-certified 2.1 system for immersive audio across music, film, and games
• Two satellite speakers: 2 x 35 W each
• Subwoofer: 130 W, delivering deep bass presence
• 400 W peak / 200 W RMS total power
• Desktop-friendly table placement for versatile setups
• Inputs: RCA and 3.5 mm, enabling up to three connected devices
• Easy on-device controls for quick adjustments (volume, bass)

Flexible connections for modern setups

Connecting your devices is straightforward. RCA and 3.5 mm inputs let you attach a computer, TV, game console, DVD/Blu-ray player, or portable music player. The system works with any source that provides a headphone jack or RCA output, letting you mix and match gear without swapping cables constantly.

• Connect to computer, TV, game console, DVD/Blu-ray player, or MP3 player
• Supports up to three devices at once for easy switching
• RCA and 3.5 mm inputs offer broad compatibility with home entertainment gear

Real-world use cases

In daily life, Z623 makes listening more enjoyable. A movie night can feel more cinematic with front-to-back sound separation and a solid bass line. For gaming, footsteps and explosions may become more immediate, freeing up the imagination to follow the action. At a desk, music, podcasts, or video tutorials gain detail and warmth, even in a busy room.

Notes on setup and expectations

Please refer to the User Guide before use to ensure proper placement and optimal performance. Room size, furniture placement, and speaker distance from walls can influence bass response and perceived loudness. The system is designed to perform well in a variety of environments, from small rooms to larger living spaces.