I have been using Altec Lansing speaker for my computer for about 6 years already, old model 221 and it still sounds nice, a little bassy IMO. Then, I also own 2 set of headset from AL also, AHS502 and the other one, forget what model already. So far, the headset works with a little faulty on the volume adjuster. Sometimes, I need to readjust it to get both channel works. Any one encounters same problem?