Help with headphone

I bought a Sennheiser HD180 headphone yesterday. The online reviews seemed good. So I bought it. But now, when i plugged it into the pc, the sound is.....just too low. Like, even when I have the windows volume control all the way up. However, it does sound very good with good bass in phone. I kind of feel cheated. I know that this is around $20 in price but still, a Sony headphone (MDR 100) costing less than this has very good bass and with this, I feel just like it's not a very good choice over that now. Is there any way I can get around this low sound issue? I don't even feel any kind of bass when I play any songs on the PC with this one. Please help.

Try checking your audio application volume levers. Sehnnheisers headphones are really one of the best in the world... have been using them for years and never had any problem.