Cheers. I left the question open to anyone but thanks for answering. Yes I forgot about those wave lengths...
I guess having a thickly carpeted back wall would be good, however that still wouldn't affect bass frequencies.

Yes ES is the more expensive line but as i can see QS is something of the sort aswell. The model in question is the SCD XB790 'QS'. If someone has any feedback i'd be gratefull for some.
Beautiful pics once again. Keep on posting, and enjoy!