One option is what you did here on /. . . . but in a planned campaign that includes getting the VLC org on your side.
Another is civil (small claims) court. No lawyer necessary and guaranteed to cost Dell more than you if they fight it. You are very likely to get a judgement on your side if Dell doesn't send a representative. You can have oodles of fun serving the judgement on Dell. I have gone to civil court twice and both times the judge was very good.
In Alberta: http://www.albertacourts.ab.ca...
A bit of a windmill tilt since after all is said and done you could easily replace the speakers yourself for much less.
Your local state/provincial/federal government is bound to have a consumer affairs section which has an interest in making sure businesses treat consumers fairly. You could look into that.
Finally, go around the service desk if you can. See if you can make contact with someone other than a scripted service droid.
I had an HP inkjet that would not pick up paper no matter what I did. I had several trouble calls in with them while it was under warranty but nothing helped so I tossed the offender into the closet and got on with my life. About a year later (outside of the warranty) I happened to read online about a service kit from HP that would cure the problem. Free under warranty. Called HP up and you know they said too bad, so sad, your warranty has expired. They would sell the kit for $40 bucks plus shipping. Half the cost of the printer. I protested about my trouble calls and they said the tickets were no longer in the system.
On the off chance, I sent an email explaining my situation to the HP CEO as email@example.com. Expecting nothing, I was floored when the next day I received a response from HP apologizing for the situation and that a kit plus a set of ink cartridges were being shipped to me.
I am sure that the email did not go to the CEO of the time (uh, about 8 yrs ago so ...) but someone read the mail and dealt with it.
Nice, but I wasted at least 40 hours on the issue. Wayyyyyyyyyyy more value than the printer. I shudda just thrown the darn thing out at the first sign of trouble.
How upset are you? How much are you prepared to put into it.