Logitech Z623 Computer Speakers

Logitech Z623 Review

Summary – Logitech Z623 Speakers

The Logitech Z623s are among the very best computer speakers you can find that are highly value for money and deliver phenomenal sound performance with THX certification. The Z623s are a 2.1 speaker system that can deliver a whopping 200 watts of pure power when paired with your desktop computer. The entire system comes with two satellite speakers and a powerful subwoofer which looks very sleek and modern and blends in easily into home décor. Furthermore, these speakers are THX certified which provide home-theater like sound to your music and games with high-fidelity sound performance. The 200 Watts RMS speakers can go extremely loud and easily fill up a large room with distortion free sound; you can also adjust the volume and bass with the on-speaker controls. The Z623s come with RCA and 3.5mm inputs which make it easy to connect to your computer, gaming console or iPod to play music. They are some of the very best computer speakers we have ever tested and we highly recommend them if you are looking to get a quality set of speakers for your home desktop or PC.

The Pros & Cons

The Pros. The Logitech Z623s deliver excellent sound performance with THX certification at a very good price. They can produce cinematic-quality sound with great attention to detail, with a subwoofer that kicks hard and punches out some terrific bass. Listening to music and watching movies on these speakers feel like listening to a set of surround sound speakers in front of you. They are highly value for money speakers that perform above expectations.

The Cons. The Logitech Z623s can be slightly bulky which may be an issue if you have a cramped desk. The extension cable on the Z623 is not very long – while its suitable for most desktop applications, don’t expect to stretch the cable out too far from your computer.

Sound Performance

The sound performance of the Z623s is exceptional – the two high performance satellite speakers deliver crisp, clean high notes with very detailed midrange. The subwoofer system produces very deep, powerful bass that can literally shake your room at high volumes. Watching movies, listening to music or playing games with these speakers is well and truly an incredible experience with over 200 watts RMS of pure power. We have no doubt that these speakers are THX certified because watching movies with these speakers felt as though we were sitting in a mini real-life cinema; they produce excellent surround sound with very detailed musical separation. The sound quality that you get with these speakers is crystal clear, with very well defined mids and great bass response that hits hard. Playing computer games with the Z623s was an out of world body experience – you can really feel the impact of grenade explosions and bomb shells with these speakers full force. Vocal performances were reproduced with distinct clarity, and you get really good sound throughout without any distortion even at close to maximum volumes. After extensive testing, we have no doubt that the Logitech Z623s reproduce the most balanced and incredible sound performance we have ever heard.


The Z623s have a very nice and sleek design that blends in easily into home décor and on desktop tables. We liked the fact that there is a volume and bass knob on the front of the right speaker which makes adjusting the volume and sound very convenient. There is also a nice power button on the front of the speaker which you can use to power on or off. The satellite speakers are very well designed and have rubber feet at the bottom to prevent any vibrations while playing music at loud volumes. They look clean and sleek and have an solid black matt finish which makes them look really premium and high quality. They also come with the nice THX certification label at the top of the speaker. The subwoofer unit is rather large but produces excellent bass response; it supports RCA and 3.5mm audio inputs which you can use to connect directly to your computer. The speakers will need to be separately powered by an AC adapter which comes with the speakers.

The Verdict?

The Logitech Z623s are easily some of the best computer speakers you can find that are highly value for money and are capable of delivering phenomenal home theater-like sound performance. They are truly value for money speakers that really give you the bang for the buck – the satellite speakers produce crisp highs, detailed midrange and very good theater-like sound that feels amazing to listen to. The bass response from the subwoofer is superb and hits hard; they even sound better than some of the higher end sound systems that we tested. The speakers produce a good deal of soundstage and music separation with detailed sound performance. Listening to music on these speakers is really a sublime experience, with vocal performances clearly defined and very crisp. Playing games with these speakers was also really fun and reproduces sound effects with distinct precision. The Z623s are beyond doubt some of the best computer speakers you can ever find and we definitely highly recommend them.

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