certainly improved the sound quality of my flat screen tv...the speaker/sound quality on flat screens are lacking and tend to be piercing at high volume,even with a high bass setting,these Z523 Speakers are a good buy and at 40watt are nice and loud..

I bought these when they were $100 and I'm still happy with them even for that price! Sound quality is very good for the price, but they have "360 degree speakers" meaning the main speakers have rear facing drivers as well.

Decent bass; nice volume

Rear speakers can cause reflections

At first I thought the subwoofer was not working, but the speakers themselves had too much noise and sounded like a very low quality laptop speaker. After much diagnostics I realized it was the speaker system that was lousy.

I've had these for a couple of years and they're still going strong, though I'm about to replace them. Note that if you plug these directly into your computer and use no EQ, they're miserable to listen to.

good pc speaker. gives hi fi sound. it is best in its class

I ordered these as a replacement for my wife's aging Boston Acc. speakers. I am surprised that the base hits as well as it does. Nice and clean unless you really crank up the base and turn the speakers all the way up then it distorts. I would never run them this way but I do like to TEST them out.

This is a very affordable speaker. To be used with a PC. It even has a subwoofer. The overall sound quality is quite acceptable from a PC system and at the cost, it is very good. The Bass is just exceptional. And I was not expecting that at all. Connectivity options are also good.

Logitech's Z523 Speaker system is one of four models in the company's 2009-2010 PC-speaker line that features a separate subwoofer. Though the Z523 carries a list price of $99, it sells online for $79, which makes it quite affordable--and a relatively good value.

While it won't blow you away with its sound quality, if you're looking for an affordable PC speaker-plus-subwoofer system, the Z523 is one of the best speaker systems in its price class.

Good sound for the money; strong bass; good connectivity options; volume and bass controls.

Though its sound quality doesn't eclipse more expensive PC speakers; the Logitech Z523 is one of the best speaker-plus-subwoofer systems in its price class.

When it released its new line in 2009, Logitech went away from the modern, squarish design of its USB-powered Z5 omnidirectional speakers and shifted to a more traditional PC speaker design.

Good sound for the money; Strong bass; Good connectivity options; Volume and bass controls

You wouldn't call it snazzy; Doesn't offer all that much in the way of acoustic detail

The Speaker System Z523 is a good option if you're after a reasonably affordable PC-speaker set with a subwoofer. Pricier speakers offer more detailed audio, but the Z523's sound quality is decent enough, offering plenty of bass.

Good sound quality for the money; Strong bass performance; Plenty of connectivity options; Handy volume and bass controls

Audio could be more detailed and clear