Logitech G633 Artemis Spectrum RGB Headset Review

By Published October 01, 2015 at 1:00 pm
    • Media

Additional Info

  • Component: Peripheral
  • Original MSRP: 150
  • Manufacturer: Logitech

Logitech's newest headsets run the high-end of the gaming market, priced at $150 and $200 for the respective wired and wireless variants. We showed the engineering and “making of” behind the company's G633 ($150) and wireless G933 ($200) headsets last month, briefly explaining the Logitech Pro G driver.

The two headsets are boasted by Logitech as the company's return to gaming audio, further claimed to exceed the usual “good for a gaming headset” quotation. Logitech wants its “Artemis Spectrum” headsets – the G633 and G933 – to be recognized for performance across various use cases, primarily including gaming, music, and movie / entertainment categories. Our favored audio solutions specialize in single categories, so the attempt at versatility requires more comprehensive testing and analysis.

This Logitech G633 gaming headset review looks at the RGB LEDs, 7.1 surround sound setup through DTS & Dolby, comfort, build quality, and mic quality.

Logitech G633 Specs

Part Number Logitech 981-000586
Driver Logitech Pro G 40mm
Frequency Response 20Hz-20KHz
Impedance 39 Ohms (passive)
5k Ohms (active)
Sensitivity 107dB SPL/mW
Microphone Pickup Pattern Cardioid Unidirectional
Size 4mm
Frequency Response 100Hz-20KHz
Connection 3.5mm
Micro-USB to USB
Operating Systems Windows 10, 8, 7

PlayStation 4
Xbox One


Logitech's G633 uses the company's new “Pro G” driver, a 40mm speaker that's just completed an 18-month development cycle. The driver's virtue is found in its diaphragm coating, which uses an ultra-thin, woven textile rather than the usual stamped plastic sheets. The thinner nature of the coating minimizes resistance to sound waves as it is transferred through the medium, mitigating surface ripple and granting greater uniformity to driver compression. This produces a cleaner sound.

The risk with thinning-out diaphragm coating is simple: It can tear under the vibrational load exerted by driver impact. Logitech tells us that the Pro G driver's selling-point is its lack of sacrifice – the coating is thinner, but a weave composite assures endurance is not forfeited.


Other than the driver, the G633's premiere features can be truncated to RGB LEDs, DTS Headphone X support, and Dolby 3D surround support.

RGB LEDs offer the usual millions-of-colors output, alongside the expected breathing, cycling, and solid color options. The LEDs are positioned outside the wearer's line-of-sight, but could potentially look cool on stream or at LAN events. Logitech uses an additional, more visible LED in the microphone, providing critical mic mute information (alongside an audible 'blip') when the mic is pushed into its stowaway position. Headset RGB LEDs can be synchronized through LGS with other Logitech peripherals.


DTS Headphone X and Dolby 3D both simulate surround sound in the dual-driver headset. The result is an effective 7.1 channels with frequency tuning and “room” configurations (through Logitech Gaming Software, or LGS). The setup allows for “Super Wide” and “Super Front” channel bias, used in unison with “DTS 7.1,” “Logitech Signature Studio,” and “First Person Shooter” tuning. EQ settings provide further user customization, drilling down into frequency-specific dialing. If you wanted to tune for voice in MOBAs or for explosions in Battlefield, that could be done.

Logitech G633 Artemis Spectrum Gaming Audio Quality

A big disclaimer before we go deep: Audio is hard to review. GPUs are complex, but we can run very clear, objective, industry-understood tests to demonstrate performance deltas between brands and cards. Reviewing audio equipment, without a cost-prohibitive studio to plot frequency spectrum and isolation results, we're going almost entirely off of subjective data. We can provide the facts about specs, but when we're talking about quality, it's going to depend on the user. This, by nature, means that you should probably read a few reviews, figure out if you have similar audio preferences to the various reviewers, and then buy (or pass) based on the collected information.

Part of our test methodology included blind tests, where I'd toggle DTS and Dolby settings to a point of no longer knowing which is active, then pick the solution I liked best. This assisted in eliminating bias inherent in understanding the two technologies and their theoretical best use cases, versus their practical output.

Logitech's G633 has enough power to be dangerous when it comes to gaming. The headset is capable of producing tremendously immersive audio, but requires an informed user for best execution. This is where LGS would do well to integrate additional guidance options; information conveyance in LGS is lacking in the department of DTS and Dolby settings, leaving a lot to be desired when it comes to determining where each is best. Ultimately, it comes down to a process of changing the settings, play-testing, and then trying different settings.


Pre-configured EQ profiles generally excel at their targeted genres, especially FPS, which brings-out the footsteps and booms. The MOBA EQ brings voices more to the front of the headset, helping focus the wearer on team communication or dysfunction (this is a practical gain at the cost of overall quality of sound). DTS proves itself in games which better simulate a studio or box, like cockpit-based racing or space sim games. DiRT Rally – a current favorite of mine – and Star Citizen are excellent examples of these. Dead Space is another example of a confined, tuned sound scape for surround tech.

In DiRT Rally, you can hear the gravel kicking up into the underside of the car. Code Masters has done an excellent job of programming positional audio as camera angle changes, and this is amplified by the G633 headset. With the camera on the hood, lower to the ground, that gravel is louder, the engine noise is grittier, and it's easy to positionally locate each of those sources. As we move into the cockpit, more of the exhaust can's rattling can be heard through the back-side of the body, as correlated to the exhaust's location. I intentionally sat still on a course as I let other cars speed past me, and a sort-of Doppler effect can be picked up using DTS. That's going to happen with almost any decent headset, but it's more pronounced and distinctly superior with the G633. The headset does just fine on its own, without the surround tech, but DTS is more than a mere gimmick when it comes to games like these.

In other games, like CSGO, I found DTS and Dolby to be detrimental to my gameplay. They were wholly undesirable and best left disabled. The nature of CSGO is very choke-point-oriented with linear progression; you know precisely where and when your enemy should be at a location based upon spawn timings, and anything outside of immediate threat audio is undesired. DTS and Dolby amplify a lot of the undesirable environment noise (like your teammates running behind you, reloading, and character voices) with the theory of improving immersion, but for competitive CSGO, all you want is the ability to identify closest threats with footsteps and pot-shots. The headset's native audio output, without modification, is identifiably better than using the Dolby 3D and DTS Headphone X add-ons.


Still, for CSGO, we found headsets like the GameCom 788 and HyperX Cloud to perform similarly enough that the difference is nearly irrelevant. It's just too simple of a sound scape, and seriously competitive CS players already know that the game has a culture of legacy hardware and diminished fidelity. You can get by just as well on a $50 headset as you could on the G633.

Dolby has more arguable use cases in games that design for a circular progression, like Call of Duty or Halo, where the map is more dynamic and unpredictable. This is because, in these games, it is of greater interest to know what's behind you, what's above, below; CS is largely fixed to one plane and has a small set of relevant sounds. CoD, Halo, and Battlefield have substantially greater depth and a more complex sound scape, making DTS or Dolby far more relevant. In all the blind tests I ran on myself, I preferred DTS to Dolby every time. In use cases where I didn't like DTS, I found that the native, unmodified audio output was better than both.

Logitech G633 Microphone Quality

The G633's microphone quality is a major let-down and one of the biggest shortcomings of an otherwise good headset. It seems that, through all of our testing, very few headset manufacturers are capable of creating a product that outputs acceptable audio quality for anything more than raw function. The popularity of streaming suggests that more headsets should support a bit more than “good enough” microphones for such endeavors. It's obviously unrealistic to expect studio condenser quality input, but if the far cheaper GameCom 780 and the Vengeance headsets can produce reasonable sound, the G633 should be able to as well.

We put together a clip comparing the audio input for our Sennheiser MD46 reporter mic + R05 recorder (24-bit sound), the GameCom 788, the HyperX Cloud II, and the Logitech G633. This is found in our above video review at the 10:00 mark.

As heard in the recording, the G633 exhibits sibilance (hissing, pronounced 's' and 'st' sounds) and tin, creating a voice that doesn't much sound like its original input. Natural resonance is lacking in the G633's recorded input. The G633 is arguably better than the Cloud II's disappointingly nasally input, but is inferior to the GameCom's mic.

It seems like such an obvious point of improvement for the entire headset industry, and I'm not sure why an integrated mic revolution hasn't yet happened; the advent of streaming begs for a universal, go-to solution for gamers who aren't yet ready for studio-quality microphones.

Continue to Page 2 for music quality, comfort, & conclusion.

Prev Next »

Last modified on October 01, 2015 at 1:00 pm
Steve Burke

Steve started GamersNexus back when it was just a cool name, and now it's grown into an expansive website with an overwhelming amount of features. He recalls his first difficult decision with GN's direction: "I didn't know whether or not I wanted 'Gamers' to have a possessive apostrophe -- I mean, grammatically it should, but I didn't like it in the name. It was ugly. I also had people who were typing apostrophes into the address bar - sigh. It made sense to just leave it as 'Gamers.'"

First world problems, Steve. First world problems.

We moderate comments on a ~24~48 hour cycle. There will be some delay after submitting a comment.

  VigLink badge