Some of you have been waiting for it for a long time, and some of you have specifically requested that I conduct this review to see how the Logitech 5.1 THX interface compares to its amazing predecessor, the Logitech Z 5500. Here is a detailed review of the Logitech Z 906 system, starting with the wall mounting system and ending with the component, while clearly not failing to measure the sound in all of its types.
- System Requirements: 5.1 Surround
- Total power: 1000 watts peak power / 500 watts RMS
- Frequency response: 18 to 21,000 Hz
- Connectivity: 3.5mm jack, RCA, digital and optical coaxial (6 inputs)
- THX Certified: Yes
- 5.1 digital surround sound: Hear every detail in your Dolby Digital and DTS soundtracks the way the studio intended. Sub woofer: 165 Watts
- THX certified home theater speakers: Your assurance of true cinema quality sound. Satellites : 4 x 67 W, wall mountable
- Delivers a continuous 500 watts of power, with the ability to deliver a peak of 1,000 watts under certain circumstances: Thunderous, room shaking audio with deep bass you can feel
- Flexible setup: Connect upto six devices : Computer, music player, TV, game console and more; Infared remote
- Easy sound control: Compact control console and wireless remote let you instantly personalize your surround sound experience
- System Requirements: Works with any device with either a headphone jack (3.5 millimeters), RCA, six channel direct, digital coaxial input or optical inputs. Signal to noise ratio, A weighted: >95dB
DAC: Digital to Analog Converter
A D2Audio chip from Intersil, now known as Renesas, provides the converter. Since this DAC also functions as a DSP (Digital Sound Processor), it can control pitch, effects, and pre-amplification in class D. (wavelength modulation or PWM).
ADC: Analog to Digital Converter
The AK5386, AKM’s outstanding ADC, is used to transform the analog RCA and 3.5mm jack inputs. Asahi Kasei (AKM) is a well-known brand in the DAC and ADC industry. This ADC outperforms the one used with the Logitech Z5500 (-110dB vs -108dB). As a result, we can assume that listening to the Z-906 in analog would be preferable at this time.
You should not press either, but I must admit that the construction of this package is very modern; we have, of course, a product launched after 2010, and makers of “all-in-one” PC and home cinema speakers for less than $ 400 are now coming out with all-black plastic speaker packages with metal grille. It produces a side “tone” that is both strong and subtle.
It appeals to me greatly. We miss the right to place or delete the grille, but yea, I’m one of those people who keeps it on the speakers 95% of the time. I would say that the Logitech Z906 is still in step with the competition in terms of aesthetics after 9 years, which is a positive thing.
Discreet and modern satellites
The satellite speakers win because of their colors, but architecture isn’t just about looks; it’s all about usability and experience, and replacing the interchangeable feet of previous versions with a basic screw is a letdown. To get a wall brace, you must then place your hand in your wallet. Second flaw: the gray Logitech and THX logos on these speakers disappear with time; on the model reviewed, this could be due to overexposure to the sun or something similar, but in either event, having just half of a recognizable logo takes away from the speakers’ allure.
Very modern subwoofer
It is simpler to store this new cabinet because it is smaller and more compact than its ancestor, the z5500. That’s an excellent point. It doesn’t have an external heater either, which is unsettling. The overall design is very similar to the Swiss brand’s previous package. We especially like the varnished plastic design around the metal grille of this subwoofer’s speaker; it’s not high-end, but it’s new, and we’re starting to see it in a lot of cars.
Finally, since the woofer is smaller, we should potentially assume bass that is lower in volume but higher in volume. This is exactly what would happen, as we will see. Overall, while many would argue that a smaller subwoofer is necessarily less good, I believe it is a good choice in general. Given the package, we may assume that 8 ′′ is sufficient to provide good bass, but there is still some GOOD serious and not just serious bass after that.
The speakers have a strong presence while being unobtrusive, which is what one can expect from a device of this nature.
Control Pod & Remote Control Panel
This control station had to have a large black dot on it, I couldn’t stand it.
In the positives, we have the option of orange for the LEDs, which is a great decision because this hue is not as offensive as blue, for example, but rather a soothing and unobtrusive color. However, in my mind, there are so many LED markers from afar, and it’s difficult to tell the input you’re using, whether you’re in 5.1 or 4.1… In brief, there are some positive things, but there are still some bad things.
We may also claim that the z680 or 5500 high architecture is superior to the wide and low layout. All can be determined by your interior and furniture.
Overall, the control pod desired to win in practicality, but it sacrificed almost as much, if not more, so that it is now unsightly. But it’s not a big deal; it gets the commands from the remote control just fine.
I don’t really know what to say about the remote control because we’ve reached the most simple of levels. Logitech has conditioned me to use the Chinese remote control, which is made of very low-quality plastic and is much smaller and “cheaper” in appearance.
To sum up, the architecture of the control pod, remote control, and also the devices as a whole reveals the brand’s intention to reduce manufacturing costs. Will this be sensed by vibration as well?
We’re not going to lie to each other: this system’s sound is incredible! A decent dose of electricity, a straightforward and enjoyable listening quality, and a very current, well-marked, and rising bass! The satellites have a metallic (aluminum) tone, but they are extremely precise and complex. The THX certification has hit the Swiss brand once more.
This collection is fantastic for gaming, whether on a PC or a console. I discovered feelings that were close to those I had with my z5500.
The 5 speakers easily immerse you in the action during a war game, and the auditory nuances are a real bonus for reactivity as opposed to the game’s sensations.
If you’re more interested in home theater, you won’t be disappointed if you use the S/PDIF inputs (optical toslink or coaxial) to connect a digital sound source and deliver Dolby Digital or DTS.
If we stick to parallels in line with home cinema goods, it’s best to keep a frequency response ranging from 45Hz to 15kHz at plus or minus 6 dB with no hollow and a peak about 2kHz but contained within the 12dB margin if we’re playing from 38Hz to 20kHz. As a result, the entire audio range falls under this 12 dB margin, which is ideal for providing an intelligible home cinema or gaming experience through all sounds.
Logitech’s decision to use an 8-inch loudspeaker was a smart one, since it ensures that the sound transition between the subwoofer and the satellite speakers is as smooth and progressive as possible, and it paid off because there is no dip about 150Hz like on the previous iteration.
In Hi-Fi and Home Cinema, a curve that is as smooth as possible is ideal; a product of plus or minus 3dB is called outstanding. From 45Hz to 15kHz, the most critical portion of the continuum is seen at +/- 6dB. We’ve missed bass range, but the amplitude of all the sounds played would be closer together.
CAUTION: Since the Logitech z906 cabinet is tall enough, it is best positioned in front of and next to the front stereo speakers, such as to the left or right of your TV cabinet.
What is the explanation for this? Simply put, the lower the frequency, the less directive the sound is, and therefore we assume it is anywhere… and the higher the frequency, the more acute the sound is, and the easier it is to identify where it comes from. The subwoofer on the Logitech Z 906 plays those frequencies that you can pretty much locate, so put it in front and the sound would sound best to you.
Audio power and definition
The Logitech Z906 is a solid speaker that can fill a space up to 30m2.
About 80% of the pitch, the sound begins to reveal its flaws, and after that, there is so much distortion. Luckily, around 20 and 60% of the volume would suffice to watch a movie in your living space; nevertheless, 100% of the volume will still be sufficient to animate an evening in a big venue… and indeed, it spits!
Satellites that are very similar
The satellite speakers have speakers that are almost identical to those used in the Logitech z-5500 system. Tang Band W3-593sf is a descendant of it. Since the versions fitted to the z906 have a nominal impedance of 5 ohms rather than 8, and a power of 10W RMS rather than 12, the reference varies slightly.
Their speakers have an 86dB sensitivity and a capacity of 10W RMS / 20W peak. This means we can get a maximum of 95 decibels (each, for a total of 102 decibels).
On paper, all of this seems to be inferior to the z5500, but while listening to satellites, I heard little difference at all, and in reality, I noticed all of the z55’s sound expressions.
Less powerful but very sufficient subwoofer
The Tang Band W8-670Q subwoofer speaker has a nominal impedance of 4 ohms and claims a sensitivity of 86dB and a maximum RMS power of 70W, but the model used in the z906 has a sensitivity of 86dB and a maximum RMS power of 70W. This means it can consistently produce 104dB at maximum power.
On the surface, this seems to be a regression to the previous one. Since the z5500’s frequency response curve had a fall between 130 and 160Hz, choosing an 8-inch speaker was completely appropriate and even wise.
In reality, it’s not that bad; we maintain good capacity, but we lose 5dB in all situations against the big brother due to the new lower 2dB sensitivity combined with the 2x lower RMS efficiency.
The medium and treble sounds are “the same” on the Logitech z 906, but the bass is weaker. I left the bass at the median stage before lowering it to see if I could lift it a bit.
The bass is dragging in terms of detail, but it still manages to articulate itself and bluff in the movements. Let’s say it’s not as good for music listening, but if you don’t have a dedicated music system, you’ll still enjoy it, particularly if you listen to electro or disco, or some dynamic and well-marked rhythmic type.
All of the speakers are single-channel.
The satellites have 3′′ (7.5cm) wideband speakers with warheads (the speaker’s tip), which means they can play frequencies ranging from 160Hz to 15-20 kHz. They are closed, unlike the previous model, and do not have a bass reflex opening!
In the bass, a speaker in a closed enclosure sounds more sharply and accurately, but with less bass extension; the satellites of the z55 could immediately go down to 120Hz and be clearly audible, while on the z906, it is around twenty Hz above. As a result, the subwoofer must support them at an even “higher” stage.
Even at high volume, listening to the satellites does not distort.
The bass-reflex opening on the subwoofer allows it to go as deep as possible. It can quickly go very far and be heard above 250Hz thanks to its 8 ′′ ( 20cm) loudspeaker! As a result, it can be found, but since it is in the front, it is unobtrusive. Even at high volumes, the subwoofer distorts very little; it’s quite pleasant; unfortunately, the tone is a little dragging, masking the cleanliness in the face of distortions.
The subwoofer, which is the hub of all connections, has the only electrical outlet. Copper audio cables link the satellites and can be quickly substituted.
The subwoofer is where the audio signal input connections are made. We discover the following:
- 3 analog direct inputs: 3.5mm jack
- 2 Optical S/PDIF Toslink inputs: To receive sound from your television, video game console, Internet TV box, or Blu-ray player
- 1 S / PDIF 1 S / PDIF 1 S / PDIF Input: coaxial To receive sound from your television, PlayStation® or Xbox® console, Internet TV box (of the orange livebox variety), or other BluRay players
- 1 stereo RCA entry (red/white)
Thanks to the use of the optical (digital) surround sound decoder in 5.1, i.e. 5 speakers + 1 subwoofer, the digital S / PDIF connectors would enable you to transform your z906 package into a true Home Cinema.
The subwoofer then attaches to the Control Pod control panel via D-sub15 (VGA) to gain interaction information such as volume adjustments.
A switching power supply was used, which is very reliable that has been used in most modern electrical devices for decades. This is significant because the cutouts restrict the current power supply to 120W constant and 240W max.
This is verified on the back of the case, which states that the appropriate electric current input in France is 220 240V and 550mA. Volt x Ampere = Watts is the measurement law, so 220V x 0.55A = 121 W. (132W max if there are 240). In the United States, the same model would adhere to the American standard for electric currents, which means it will accept 110-120V for 1A, putting it anywhere between 110 and 120W. Since this is a foreign device, we must note that the Logitech z906 is a 120W RMS / 240W peak configuration, not 500W as they say.
Class D amplifiers offer amplification, although previously, nearly all audio equipment from Logitech used Class AB amplifiers. Class D has the advantage of being efficient in terms of energy consumptions (current) and sound power reflected in length. This is what can compensate for the power supply by providing higher output per watt.
Class AB efficiency ranges between 50 and 70 percent, while class D efficiency ranges between 70 and 95 percent. This is a PWM (pulse width modulation) procedure.
So, despite losing a lot of amplifier capacity, the z906 can still deliver a significant sound quality in decibels (dB), up to 110dB in 5.1. However, since this model lacks a boost mode, we won’t be able to get more volume while reducing distortion, which is a good thing because class D amplifiers don’t want to exceed their power because they can distort too much. strong (above 10 percent THD).
I wasn’t able to disassemble / open and reverse engineer the amplification component because the set I checked wasn’t mine. It is obvious, however, that the z906 sends a lot of data, even if it isn’t as loud as its predecessor.
The 5.1 z906 sound system isn’t bad at all; it’ll give you a lot of enjoyment when gaming or watching movies at home, and it could also delight you when listening to music, though it’s inferior to any stereo option at the same price.
It’s also painful to compare it to the z5500 that came before it, since the z906 doesn’t advance in terms of hardware, networking, or settings, and it also doesn’t innovate in terms of efficiency. It’s the same thing, but it’s less expensive to make and has a more sleek look. For eg, an HDMI port would have been nice.
In the end, it’s still a fantastic 5.1 sound system for the money. It is a real alternative to the 5.1 Samsung or LG combo for the same price, and at this price it is what is done best, way ahead of the sound bars for 300 or 400 $!
If you’re buying used, go with the z5500; if you’re buying new, go with the z906 and you won’t be disappointed!