Sonic Gear is a good brand of speaker, but then i can say that it is consider as mid class speaker, due to its pricing, and sound quality (Sound quality i mean didn't mean to be loud, but is rich, bass and other etc and if not a pure music lover will hardly spot it).

For Altec Lansing i had my MX5021 and it still tip top condition, altec lansing is always famous on their Bass, And yes my Altec Lansing Speaker done it well

Another bess speaker i am using till now is Logitech Z906 , although many review say that it is lose to the previous version Z5500. But so far i am still very satisfied it, it could provide me a fully rich, bass and also quality audio i wish to get.

All of this is just for PC speaker, if goes to headset i will stick to my Monster Beats Studio by Dr Dre. Its really a music lover top choice, regarding of the pure quality, bass and etc it can provide