Reply to Behringer DJX900USB or reloop rmx 40 DSP Blackfire 4 kanaals mixer?

I'm looking for a professionnal 4 channel mixer.

I came on the Behringer DJX900USB and the reloop rmx 40 DSP Blackfire 4 channel mixer.

the Behringer has a frequency response of 10-40.000 Hz, the reloop 20-20.000 Hz. Yeah I know, your reaction will be like: you dont hear 10-20 hz and above 20.000 Hz. Yeah i know, but I believe the bass is richer and you can feel the bass then.

I just need someone who can look at the specs and can say what's the best.
That will be greatfull

links: behgringer: http://www.bhphotovideo.com/c/produc...fessional.html
reloop: http://www.musicstore.com/en_EN/GBP/...DJE0002409-000


ps.: I am one of the 4 guys with the hack for the remix decks in a article on DJTECHTOOLS. If you have a question on that hack, just ask