Nokia N73, headphone adapter vs Nokia N70

Hi,

I want to buy a Nokia N73 to use as a phone obviously but to also replace my
ipod nano. With my Nokia N70 the volume it pushed out through headphones
just wasn't enough. Is this a problem with the N73?

Its loud enough when you're in a quiet room or something but in a noisy
environment like the tube it was just not loud enough!

Any comments?

Dan