Logitech Z-640 6 Speaker Surround Sound System
We don't know when or if this item will be back in stock.
| Brand | Logitech |
| Model Name | Z 640 |
| Speaker Type | Satellite |
| Connectivity Technology | wired |
| Recommended Uses For Product | Home Theater |
About this item
- Six-speaker system with patented subwoofer design delivers twice the bass energy of conventional designs
- Innovative satellite design with rotating pedestals that allow for wall or desk placement
- Internal power supply eliminates bulky wall adapters
- Easily hook it up to your video game console with our included adapter cable
- Total output power: 71.2 Watts RMS
Similar item to consider
Customers who viewed this item also viewed
Logitech Z207 2.0 Multi Device Stereo Speaker (Black), 9.5" x 3.5" x 4.9&Quot;Amazon's Choicein Computer Speakers
Climate Pledge FriendlyProducts with trusted sustainability certification(s). Learn moreProduct Certification (1)

Carbon Neutral Certified by SCS Global Services means the product’s carbon emissions have been measured and reduced, with any remaining emissions offset.
Important information
To report an issue with this product or seller, click here.
Product guides and documents
Looking for specific info?
Product information
| Product Dimensions | 16.7 x 13.4 x 13.1 inches |
|---|---|
| Item Weight | 1 pounds |
| ASIN | B00006HYPD |
| Item model number | 970073-0403 |
| Customer Reviews |
3.5 out of 5 stars |
| Best Sellers Rank | #770,158 in Climate Pledge Friendly (See Top 100 in Climate Pledge Friendly) #2,063 in Computer Speakers #14,522 in Climate Pledge Friendly: Electronics |
| Is Discontinued By Manufacturer | Yes |
| Date First Available | August 29, 2002 |
| Manufacturer | Logitech |
| Language | English |
| Speakers Maximum Output Power | 711 Watts |
| Item Weight | 16 Ounces |
Feedback
Product Description
Product description
LOGITECH Z-640 -- Experience exciting Dolby Digital home theater sound on your PC with this 5.1 Channel Multimedia Speaker System. Its extraordinary subwoofer delivers twice the bass of similar systems, and five elegant satellites provide silky smooth mids and highs. Immerse yourself in an ocean of sound with PCs, video game consoles, and more. Warranty - 1 year Finish - Black
Amazon.com
Get the most from your computer games and DVD movies with Logitech's Z-640 surround-sound speaker system. The system's four satellites (left/right, front/surround) and center-channel speaker fill your room with sound, while the 25-watt powered subwoofer rounds out the bottom end to a deep 35 Hz, a good octave below the range of most bookshelf speakers, delivering floor-shaking bass from your music or a DVD's low-frequency-effects channel, the ".1" in a Dolby Digital or DTS 5.1-channel presentation.
Inputs include a stereo analog (left/right) RCA pair and multi-channel analog inputs for decoded surround sound from any four- or six-channel sound card (or audio/video surround receiver).
The satellites are powered by 7.3 watts each, and the center channel, which handles up to 70 percent of most surround mixes, gets 16.3 watts. Logitech's innovative, dual-chamber subwoofer delivers twice the bass energy of similarly sized subwoofers, and the company's use of an internal power supply obviates the bulky wall adapters found on many surround systems.
All speakers are video shielded to allow distortion-free placement on or around your monitor, and the satellite speakers--imbued with easy-position rotating pedastals--may be mounted on stands, your desktop, or the wall. The system is covered by a two-year warranty. A handy supplied adapter ensures instant connectivity with gaming consoles.
What's in the Box
Four satellite speakers, one center-channel speaker, one subwoofer, requisite speaker cabling, one adapter cable for hookup with video-game consoles, and a user's manual.
Climate Pledge Friendly
Products with trusted sustainability certification(s). Learn more
Product Certification (1)
Carbon Neutral Certified by SCS Global Services enables companies to demonstrate carbon neutrality for their products by reducing carbon emissions throughout their operations and offsetting their remaining carbon footprint through the purchase of carbon credits. SCS Global Services is a global leader in third-party environmental and sustainability verification, certification, auditing, testing, and standards development. SCS is a chartered Benefit Corporation, reflecting its commitment to socially and environmentally responsible business practices.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on Amazon-
Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Installation was a breeze, the hardest part was unpacking the speakers since logitech uses so much tape/plastic on the speakers and wires. I've heard many people complain about it but I consider it a good thing since it ensures promotes safe travel. I'd rather unwrap speakers for 10 minutes than receive broken ones.
I hooked up the 640's to my onboard sound since I have an Asus P4B533-E motherboard. If you have the same motherboard or one similar, make sure to read your manual since you might have to make some jumper changes. I first fired these up and tested them out while watching the opening scene in "Saving Private Ryan". I was astonished that sound this good was coming out of $37 speakers.
Next thing to try out was a computer game. Threw in Joint Operations and I had never experienced 5.1 sound gaming so I was very pleased with how they sounded. Explosions sounded realistic as well as bullets and the direction from which they were coming from. Very Pleased!
The highs and bass are excellent, but they were lacking a bit midrange. I did have to tune them a bit to get them working just right but its definitely not a hard thing to do at all. One thing you also notice right off the bat is the bright blue LED light on the center channel. I took care of that right away by putting some electrical tape over it (problem solved).
Speaker quality is good. They seem pretty sturdy and could probably withstand a short fall off a computer desk.
Overall, the z640's are excellent budget speakers. Hardcore audiophiles might want to spend about 5x more for other options, but for the average joe, these will do the job just fine.
Pros:
Great bang for the buck
Good build quality
Nice highs/lows
Cons:
Bright LED light on center channel which is easily fixed
I recommend these speakers highly to anyone that does not want to spend a ton of cash yet wants descent sound.
Pros:
Great price
Good build quality
Solid bass
Great high end
Cons:
Mid range a little weak
Bright blue LED on center is just plain stupid
Bass control on sub - would be better on the center with all the other controls
Note: I have these connected to an Audigy 1 sound card.
Setup:- system was very easy to connect up due to color coding but the packaging and tape over the wires was a pain to try and remove - that took longer than the connections. The build quality of the components seems good and the cable lengths were about right for the way I needed to set it up. However the blindingly bright blue LED on the center is just plain stupid and I had to put electrical tape over that within the first 5 minutes.
Sound quality:- I play games, listen to some music and watch some DVDs. It was clear to me that the default settings on my setup gave a less than stellar sound and required a fair amount of tweaking. Once the settings were correctly configured the sound went from "merely ok" to "very good".
I agree with reviewers that have said the system is a little weak in the mid range but it is not so bad that it detracts greatly from my enjoyment of the system.
Music is good, movies are very good and games are excellent through these. Battlefield 1942 through them is an entirely new experience compared to the (good quality) stereo+subwoofer speakers these replaced.
Bass is sufficient for a small to medium sized room, the highs are clear and the channel separation is good. Mid range is a little weak.
Clearly you can get better quality but not until you go up to 3 or 4 times the price.
Overall summary is that these are great speakers and well worth the money - I would recommend them to anyone and I think they will keep me happy for a few years.

