I'm in a need of serious help.
Budget: Well, it depends...I've been planning to spend about 1000EUR...is it possible to do with that money?
The room is located in the cellar. Here are the room Dimensions:
Width: 3,7 m
Lenght: 4,1 m
Height: 2,5 m

Here are some pics of the room: (the brown table will be replaced by black sofa)




1.) How about these: http://www.advancedacoustics.tk/ I think they look cool. Does anyone have these? What if I decide to buy these, how much do I need to put them on my room? If I have understood right, I think I need to make the front of the room almost dead and the back of the room live with diffusers, right? How about the ceiling? And I need bass traps for the corners? For all of them, front and back? I'm having a problem with one corner, where's the door is located...what should I do? The trap doesn't fit there...

2.) How about the Prima-acoustic sets? http://www.primacoustic.com/ For example, London 15...
3.) What can I do with the window? I think I need to hide it if I want to put acoustic foam on it...
4.) What do you recommend for the back of the room? I have those my CDs now there...do they act like a diffusor or...? Would it be a good idea get more CDs to that back wall or do I need to buy some diffuser (or do it by myself)?
Thanks for your help!