Alienware m17 Sound Vs Dell XPS M1730 Sound

I’m looking at buying either laptop.
I have used the Dell XPS M1730 for work and personal and loved it, I thought for a Dell laptop the sound and multimedia was excellent and I loved how it looked.
I know the Dell is slower on CPU and GPU in the same price range, so the Alienware m17 wins there; but as for stile, I think the Dell is very classy and full of “bells and whistles” The Alianware looks very bland
The $2500 question, can someone let me know what the sound quality of the Alienware m17 is like compared to the Dell M1730/SB Audigy??
This would be a Part-time gaming/Multimedia laptop for the bedroom and coffee table, but not our main gaming PC; so its not a real desktop replacement.
I just cant find any Sound reviews comparing these two laptops.
Thanks for your advice or any you-tube review links that show sound you can give me.
Thanks again

JC