Hegel H160 and Focal Electra 1008Be sounding bass-less

Hi - 

When I had auditioned the H160 at the dealer with the same set of speakers it sounded gorgeous with meaty bass even on the bookshelves. When i received the new H160 6 years ago we thought it would open up eventually but its been 6 years and about 50 hours or so on it and yet it continues to remain dry. Any clues what might be going on. Also recently I had crackling in the left channel for which I had to drop it off at the service center to get it fixed. I have another Marantz built like a tank and have owned it for 15 years+ with no trouble. Not sure if there are any similar issues folks are seeing with Hegel in general.
Thx