Logitech Z623 vs Z625
Comparing Two Exceptional Speaker Systems

The Logitech Z623 and Logitech Z625 are two of the most famous sound systems from the brand. While the Z623 did come first, it’s closely similar to the latter. If you don’t want to end up buying something that won’t meet your expectations, our sound engineers have thoroughly tested both in this Logitech Z623 vs Z625 comparison.

Logitech Z623 or Z625?

Best Optimal Features
Logitech Z625
Best Budget Option
Logitech Z623

Features of Logitech Z623 and Z625

Design and Size

The first point our technical experts considered in this Logitech Z623 vs Z625 comparison is the size and design. In truth, both are actually very similar on this front. 

The Logitech Z623 and Z625 come with a plastic build. The two speakers have their power switches as well as high volume and bass control switches on the front ends of their builds. 

On the other hand, the subwoofer has the traditional design, with a metal grille and sharp corners. Unless you inspect the rear subwoofer inputs, you won’t be able to tell the difference between the Logitech Z623 and Z625. 

However, you should note that the Z623 has analog inputs. On the other hand, the Z625 comes with an audio port.

As for size, the Z625 comes with a height of 11.1 inches and a width of 11.9 inches. Compare that to the Z623, which measures 7.9 inches by 4.6 inches. The Z625 weighs 18/3 lbs while the Z623 weighs 19.7 lbs. 

Set Inclusions

When you open the Logitech Z623 set, you will find a speaker system that acts as the central piece of the entire offering. There is also one subwoofer and two satellite speaker options included in the set. 

The set comes with a 3.5mm audio input cable, which allows you to connect to mobile phones and even some sound systems. Of course, there’s a warranty card and a user manual to wrap it up. 

In the Z625 set, you get the speaker system as well as two satellite speaker options. There’s an RCA input and 3.5mm audio input cable, allowing you to connect to mobile phones and other devices. 

Then, there’s the optical input cable, which is one of the major differences in the Logitech Z625 vs Z623 comparison. It feeds the satellite speakers well, although the stronger right satellite speaker will shine even better. 

Total Power

Of course, the power rating is one of the most important things to keep in mind when you’re getting sound equipment. It’s another important factor in the Logitech Z623 vs Z625 comparison our audio engineer team closely analyzed.

The Logitech Z623 comes with a power rating of 200 Watts. This is compared to the Z625, which offers 400 Watts in total power and another 200 Watts RMS. 

Keep in mind that peak power and RMS power aren’t the same thing. The major difference [1] is that peak power shows the highest level of power that a speaker or subwoofer can handle without shorting out its fuse. On the other hand, RMS power is the continuous power handling of a speaker. 

Regardless of what it is, the Z625 comes out on top here. It is a powerful subwoofer, and it performs much better than many other speakers overall. Connect music players to this, and you’ll see the difference. 

Sound Quality

The Logitech Z623 has an impressive sound quality, with precise and clear high notes and a broad midrange, thanks to its two speakers. Each of the speakers measures 35 watts in power, and you also get a subwoofer with 130 watts in power rating. 

Moving on, the speaker set also has magnetically protected drivers and an aluminum phase plug, which are tucked behind its grilles. The sub offers a punchy bass, ensuring that you can enjoy an engaging experience when you watch videos, listen to songs, and play games. 

As for the Z625, you get pretty much the same. In fact, this product competes with some of the most impressive soundbars available. With an optical input, the Z625 can easily adjust to TV inputs. The sound is redirected to the speakers as well, so you don’t need to make any physical changes. 

You also get great optical connectivity, with the speaker coming with a 2.1 high-definition surround sound system. This is because the speaker driver can easily preserve its mid-range accuracy, while still replicating the surround-sound impact. Whether you’re a gamer or a movie enthusiast, the Z625 is better for you.

Frequency Response

Moving on with the Logitech Z625 vs Z623 review, you also have to closely consider the frequency response. On the Logitech Z523, frequency response ranges between 35 Hz to 20 kHz, which is pretty impressive with the speakers and subwoofer offering punchy bass even at low frequencies.

As for the Z625, you get the same frequency range – 35 Hz to 20 kHz. However, it manages to hold mid and high frequencies much better than the Logitech Z623. 

Sensitivity on the Logitech Z623 is 92dB, while the sensitivity on the Z625 is 103dB. So, the latter takes the cake in this round of the Logitech Z625 vs Z623 comparison.  

Technology

Since both products are significantly similar, they have the same technology as well. Their speakers are suitable for any type of high-quality audio device and setting, and you also get to connect seamlessly as you use them. 

But, it should be noted that the Logitech Z625 vs Z623 comparison won’t be complete without pointing out the Z625’s ability to connect multiple devices. This is one of the areas where the Z625 gets the edge. 

Subwoofer

As they are sound systems, both products come with subwoofers attached to their main bodies. On the Z623, you get a subwoofer that measures 11.8 x 12.1 x 10.47 inches in dimensions. The subwoofer has a power capacity of 130 watts, and is a free-air subwoofer. 

On the Z625, you get a subwoofer that measures 11.10×11.93×14.11 inches in dimensions. The subwoofer has the same capacity of 130 watts, as well as a Bass reflex enclosure. 

Driver

On the Logitech Z623, you get two satellite speakers that offer front-firing drivers, pushing your sound forward. So, you get two speaker options that feed you all the bass you need while still allowing you to control the sound. Keep in mind that the right speaker includes a 3.5mm input, an AUX port, and a headphone jack. 

Then, you have the subwoofer, with a fairly small driver of 7 inches. Although it might not sound great, the driver alone packs quite a punch.

The Z625 has the same driver option, with a headphone jack and AUX port ensuring that you have the same quality of sound. But, its driver is better as it can manage mid and high-efficiency sounds and effectively simulate the surround sound feeling.  

Connectivity

The primary connectivity option on the Logitech Z623 is the RCA input, which directly connects to your audio system or PC. There’s also a 3.5mm speaker cable with the set, which allows you to connect it to your mobile phone for more intimate use and music listening. 

The Logitech Z625 comes with the same options but adds the optical input as an extra benefit. The optical cable connection is better because it can isolate audio. This allows it to increase the system’s precision significantly, so your listening experience is better. 

Sadly, both products don’t have Bluetooth connectivity. Many might find that to be a deal-breaker, but you won’t have much of a problem when you consider the available options. There is also no remote control here, so you need to adjust the RCA inputs and right speaker options manually. All the main controls are available on the speakers, so it won’t be much of a problem.

Ports

The two speaker systems also come with identical ports in all areas. However, the primary difference here is that the Z625 has an optical port. The optical port offers even more connectivity options to the Z625, including direct hooking to a console or a TV. 

THX Certification

The speakers in the Logitech Z623 are THX-certified and engineered to offer optimal performance. They play with perfect engineering, and our sound engineers gave them a sound rating. 

As you can expect, the Z625 is just the same. It is a THX-certified speaker system, which means it will offer the right level of sound to you at all times, be it for gaming, movies, music, and more. With THX-certified audio and crisp sound, you won’t miss anything. You can experience this caliber of sound as you connect to multiple devices simultaneously.

FAQ

Is the Logitech Z625 good for gaming?

Yes, the Logitech Z625 is good for gaming. The speaker system comes with everything you need to enjoy your gaming experience, including a seamless connection structure, and a crisp volume that will deliver thundering bass to you at all times. 

The Logitech speakers offer an optical audio port, which is great for gaming consoles, a desktop sound system, and an external control unit. With multiple inputs and integrated controls, the speakers give you high-range frequencies without breaking a sweat. 

Is the Logitech Z625 good for music?

Yes, the Logitech Z625 is good for music. Thanks to its optical input cables, the speaker system can connect to any device and allow you to play clear music. You will also be able to connect to several devices and switch seamlessly between them when playing music.

The ability to connect up to three devices at a time is especially helpful for streaming music across multimedia speakers. Its versatile optical input feature, among other types of connection it offers, takes this speaker above other audio systems. 

Is the Logitech Z623 worth buying?

Yes, the Logitech Z623 is worth buying. The audio quality of the set is loud, and you get deep bass even though its subwoofer driver is only 7 inches. The Logitech Z623 is great for watching movies, offering ground thumping bass from the left satellite speaker and right. They are also great gaming speakers, so you can rest assured to enjoy high-caliber sound when plugged with game consoles.

Overall Winner: Logitech Z625

For the winner of the Logitech Z623 vs Z625, our sound engineers have selected the Logitech Z625 for its acoustic energy. It offers an optical input cable, as well as the ability to connect to multiple devices simultaneously. Its versatility makes it highly ideal for music, gaming, and movies, and one that doesn’t break the bank. 

Writer

Willie Greer
Willie Greer
Willie Greer is the founder of The Product Analyst. A cinephile, he has made it a personal quest to achieve the awesomest home theater possible. He now shares what he has learned through the years on the site, and has enlisted the help of tech-savvy colleagues in providing more insight about today’s most sought-after gadgets.