Its been almost 6 years I have been using Creative Inspire M4500 woofer system for my Desktop PC. Its a 4.1 channel speaker system having 4 satellite speakers and 1 subwoofer, the build quality of these speakers is GOOD all plastic material is used I would say High Quality plastic material, this speaker system works good if you have sound card in your computer system, or your mother board should be of 5.1 channel audio capable. One biggest con of this is that it has two 3.5mm audio jack so if you plan to use it with your mobile and your laptop you cant be able to take full advantage of this system, because one 3.5mm jack is for 2 satellite speaker and another jack is for rest of the two satellite speakers. If you plan to buy it for your laptop I would recommend you to buy a sound card for the same.
Pros:
1.Clear sound
2.Deep Bass
3.Good looking
4.Wired Remote is very useful
Cons:
1.One need to buy separate sound card if they intend to use it with laptop or mobile phone