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Logitech Speaker System Z623

GBP   159.99

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THX Certified immersive sound

THX Certified

These speakers have met strict performance standards to achieve THX® certification.*

Learn how Logitech and THX bring the theater to your home.

* THX and the THX logo are trademarks of THX Ltd. which are registered in some jurisdictions .

400-watt peak power

You’ll hear and feel immersive theater quality audio that brings music, movies, and games to life.*

*200W RMS power

Multiple inputs

Z623 speakers have convenient RCA and 3.5 mm inputs for music, movie, and gaming devices.

Integrated controls

Dial the volume and bass up or down to customize your listening experience.

Built-in headphone jack

When you want to listen privately, just plug in your headphones.

Powerful 2.1 system

Easy, two-satellite setup and a powerful subwoofer give you big sound—even in large spaces

Technical Specifications

System Requirements

  • Computers
  • TVs
  • Music players
  • DVD players
  • Gaming consoles
  • Other audio sources with 3.5 mm or RCA audio output

Warranty Information

2-Year Limited Hardware Warranty

Package Contents

  • Two satellite speakers
  • Subwoofer
  • 3.5 mm audio input cable
  • Speaker connector cables
  • User documentation

Part Number

  • PN 980-000404


Height: 284 mm (11.2 in)
Width: 305 mm (12.0 in)
Depth: 266 mm (10.5 in)
Weight: 7000 g (15.4 lbs)


Right Satellite (w/ controls
Height: 196 mm (7.7 in)
Width: 117 mm (4.6 in)
Depth: 126 mm (5.0 in)
Weight: 1000 g (2.2 lbs)


Left Satellite
Height: 196 mm (7.7 in)
Width: 117 mm (4.6 in)
Depth: 126 mm (5.0 in)
Weight: 950 g (2.1 lbs)

Technical Specifications

Total watts (RMS) 200W
Subwoofer 130W
Satellites 2 x 35W
THX® Certified
2 3.5 mm inputs
RCA input
Headphone jack
Controls: Power, volume and bass controls on right speaker
System Frequency response: 35 Hz-20 KHz
On and off-axis frequency response shape: Per THX multimedia system specification

Audio Support

Looking for information about a Logitech speaker dock, Squeezebox or other audio product? Our online resources can help you with tips, troubleshooting, replacement parts and more.

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Bluetooth Audio Adapter

Wireless technology for your speakers

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