Logitech Z623 Review - Audiostance

Logitech Z623 Review

The Logitech Z623 might be one of the finest computer speakers available right now. Great value for money, incredible performance, and THX certification are all contributing factors which set the system above so many. The 2.1 surround sound speaker produces an outrageous 200 watts RMS power when paired with your computer or device. The result is that you will never have to sacrifice loudness for clarity, the Z623 can do it all. The Logitech Z623 comes with a powerful subwoofer and two individual satellite speakers, which are black in color and have a sleek matte finish. The THX certification provides a standard that these speakers have to pass rigorous testing that few meet: deep bass, ample power and trusted performance.

The system has RCA and 3.5mm inputs, which allows you to connect a variety of computers, game systems, music players, DVD players and televisions at once. The 3.5mm input lets you listen to audio privately using the headphone jack and integrated controls on the right satellite speaker make it easy to adjust to your preferences. With so many features and guaranteed performance, the Logitech Z623 might be just what you’re looking for in your next upgrade.

Logitech Z623

Logitech Z623 - General Specifications
Satellite speaker dimensions:
7.8″ x 5.6″ x 5.4″
Left satellite speaker weight:
2.1 lbs
Right satellite speaker weight:
2.2 lbs
Subwoofer dimensions:
11.9″ x 10.9″ x 11.1″
Subwoofer weight:
15.4 lbs
Power, volume and bass
3.5mm input:
RCA input:
Subwoofer watts:
Satellite watts:
35W each
RMS power output:
200 W
2 years


The Logitech Z623 speaker system comprises of three components: the two satellite speakers, and the subwoofer. The satellite speakers are 7.8 inches in height, 5.6 inches wide and 5.4 inches in depth. They can generally be placed on the sides of your desk and shouldn’t take up much space. There are also rubber feet situated at the bottom of the satellite speakers to prevent vibration and shaking when listening to music at higher levels. The satellite speakers are designed to point at an upward angle, where the top of the speaker is narrow and the bottom is wide.

The right satellite speaker has all the main controls attached to the front of it, whereas the left is smooth with just the driver. The right speaker controls include: power, volume, and bass. Each speaker has a front-firing, 2.5 inches in length, sealed driver that pushes the bass-forward. The satellite speakers have a matte black finish and the sealed drivers are enclosed by a soft subtle rubber and metal grill. The right speaker also has additional inputs being a 3.5mm connection, AUX and headphone jack.

Logitech Z623


The subwoofer measures approximately 11.9 inches in height, 11.1 inches in depth and 10.4 inches in width. If you remove the grill you will notice the exact size of the subwoofer is 7 inches, which raises the query if the subwoofer enclosing was made for a bigger system. However do not fret about saving a few inches of space, the Z623 subwoofer delivers some serious audio levels. If you really turn up the volume, your windows will begin to shake a little. As previously stated the bass control is situated on the right satellite speaker, which can help adjust your subwoofer to your preference. On the rear panel of the subwoofer you will notice a 3.5mm input and a stereo RCA input, which can be connected to your computer directly. The satellite speakers will also need to be powered by an AC cable that comes included with the speakers.

Logitech Z623


Logitech speakers are surprisingly good because nobody expects a company that manufactures keyboards and mice to do so well in audio quality, but really they do. Logitech purchased high-end earphone makers Ultimate Ears a few years ago, and every successive generation of speakers have sounded better than the previous versions. With all these leaps and improvements we now arrive at the most important question, how does the Logitech Z623 really sound?

‘The sound performance of the Logitech Z623 is outstanding.’

The sound performance of the Logitech Z623 is outstanding, the two satellite speakers produce clean and crisp high notes and a very broad midrange. Each speaker delivers 35 watts and the subwoofer pushes 130 watts, making the Z623 the perfect option for any house party. Behind the grills of the satellite speakers are magnetically shielded drivers with an aluminum phase plug. The phase plug focuses the acoustic energy, while dissipating heat making the speakers even more efficient. The subwoofer gives out deep and powerful bass, which means that watching movies, playing games or listening to music can be a truly explosive experience.

‘The 200 watts RMS power produces excellent sound with little distortion.’

The 200 watts RMS power produces excellent sound with little distortion. Designed to deliver the most accurate experience out of the box, these speakers are also THX certified. THX or ‘Tomlinson Holman’s Experiment’ means that these speakers had to go through various tests and benchmarks in order to pass the industry standards for sound reproduction systems. What this entails for the consumer is that the speakers produce the sound that the audio engineer who worked on the film, game or album, intended for you to hear. The THX certification is an extremely difficult standard to earn, so by purchasing a system with this approval guarantees the absolute best audio imaginable.

Logitech Z623

Gaming Speakers

If you’re in the market for a gaming speaker, there are some key elements that you’re probably looking for. You’d want detailed sound so you can hear your enemies sneaking behind you, and an immersive experience that isn’t just loud distorted crackling noise. The audio quality that you get from the Z623’s is crystal clear, allowing you to hear your enemy footsteps in the background, with well-defined midranges and hard bass that makes you feel like you’re really in the action. The experience can be truly otherworldly, as you feel the air piercing sounds of bullets flying above your head or grenades blowing up vehicles. Be warned not to turn the volume up too loud or you might get your neighbors worried.

Omnidirectional Speakers

Music vocals from rock, hip-hop, and opera are all brought together with the speaker being capable of providing a good balance to all. The speakers are also great at meeting specific frequencies and directing them for optimal listening. Logitech has stated that these speakers are omnidirectional, accordingly, you can put it behind a couch or under a desk and not have to worry about the sound not reaching you.

What We Like:
  • THX certified at a very good price.
  • Cinematic quality sound, great audio detail and thundering bass.
  • No distortion at high volume levels.
  • 200 watts of power is more than any 2.1 speaker system will need.
  • Various inputs and outputs to connect devices.
  • Sleek black design fits well with any home or environment.
  • Logitech is a trusted brand with a good speaker history.
What We Don't Like:
  • The extension cable is not very long, however it’s still appropriate for most desktop applications.
  • A remote control is not included.

What's in the Box Graphic

What’s in the Box?

  • Logitech Z623 Speaker System
  • 1 x Subwoofer
  • 2 x Satellite speakers
  • 3.5mm audio input cable
  • User manual
  • Warranty card

Logitech Z623 System requirements

The Logitech Z632 works with any device with either a headphone jack (3.5mm) or RCA inputs:

  • Computer
  • Television
  • Smartphone
  • Tablet
  • DVD player
  • Blu-ray player
  • Music player
  • Xbox
  • PlayStation
  • Wii


The Logitech Z623 speaker system is great value for money producing crisp and clear sounds, with a detailed midrange and ground thumping bass. The 200 Watt RMS powered speaker with precision 2.1 surround sound effect ensures that the Z632 speaker acts less like a dual speaker, and more like a 3D 7.1 entertainment system. Not only is the speaker capable of reaching high levels of sound, it is also distortion free. The Z623 is very versatile – it can be used for your console gaming, home theater, and PC or laptop audio. The speaker has easily accessible volume, bass and power controls, as well as a port for your headphones. The connection type is RCA analog, and the frequency response ranges from 35 Hz to 20 kHz (20 000 Hz). Overall this stereo system is for those who like to multi-task at their computers, going from streaming music and videos, to gaming and back again. The Logitech Z623 speaker has enough power and versatility to do just about anything.

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Josh Williams
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Josh Williams
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