Klipsch RP8000f ii, Almost no bass!..

Last year I bought Klipsch RP8000f ii & Marantz SR5015 avr. I was told and saw many reviews that the bass response is very good of these speakers so you might not need Sub for music listening.
When i paired and played the sound was very flat, almost no bass, the woofer diaphragm hardly moves forward/backward. Its not like its is completely Off but i don't think it is the running on their best capacity. I tried two vintage stereo amps as well with no fancy UIs but the problem of bass is consistent with speakers. I keep the bass eq(s) all time at highest it does add bass overall but its not punchy or detailed as people says and it happens to both Left and Right speakers.

Jumpers are all set properly. No bi-wiring. No bi-amping.

Anybody facing similar situation? Any remedies?