Hegel H160 and Focal Electra 1008Be sounding bass-less

Hegel amps have a high damping factor which will lean towards tight fast bass. I brought home the Kanta 3 and that big flpoorstander had a 10 db peak at 100 hz and was -20 db at 80 hz. so placement is critical and subs might be necessary. 

The first thing I would do is try to borrow a different  with similar power ratings and compare, That will give you a starting point.

Sounds like it could be a room/speaker placement issue assuming there’s nothing wrong with the amp or speakers.  

You put 50hrs on the amp in 6 years? Usually amps and most other components need about 200hrs to sound their best. 

Anyways as to your bass issues, you may be sitting in the bass null point. To test it, set it all up in another room. With small speakers and small integrated it’s a quick test.

Well you need a more powerful amp! Look at a Boulder 866 and sell the Hegel.