Xonar Phoebus 7.1 Solo NO BASS

I recently bought Xonar Phoebus 7.1 Solo and connected the Razer Tiamat 7.1 cables on some gates. Installed the required software and its latest versions and i am experiencing absence of any single bass! I have searched all the internet but found no sufficient advice that could actually help me... I am not a soundphile neither have i been knowing a lot of sound cards etc... I have connected the green cable where the green light is, the grey on the side, black on rear and the orange next to the black, i dont know if this is correct but as i see, only the headset option on the soundcard software is enabled, speakers cannot be selected but S/PDIF-Out unexpectedly can! Maybe this the cause... There is absolutely no bass and i have selected every option possible and did all combinations but still didnt experience any single bass! I have searched the whole internet and found no way to adress this ****.
I knew i shouldnt have bought soundcard, such trouble never had before... I suppose i have connected the cables incorrectly. When i connect the orange cable in the front, the speaker option can be selected, the bass works but the overall sound is completly sick. What should i do?!?

*NOTE: when i disable 7.1 surround from the headset, bass unexpectedly appears so the cause is rather from software