I bought the marantz sr7012 for £850 last week after my yamaha rx1060 developed a fault that couldn't be fixed, I ran audessey from the av but compared to my yamaha 1060 and yamaha dsp3090 it sounds really flat, lifeless, I bought audessey app and done another run of audessey, it improved the bass a bit but I'm feeling really let down with this amp, I'm not sure if its the amp or audessey that's making it sound like this, I Googled the problem and found a few others who also said there sr7012 really lacked bass but they were blaming the audessey fr making it sound flat, it's not just the lack of bass, it's the tone, even if I got more bass I just don't like the flat tone I'm getting, my speakers are dali option 6, dali opticon centre, dali e12 sub in 3.1,i didn't have the trouble before, in fact I didn't even use my sub a lot as the bass I was getting for my yamaha were incredible, I tried different settings, speakers at large/small, midrange on & off, dyn.eq on, then off with tone control bass set as high as it would go, just can't seem to get rid of the horrible flat sound, I'm really just about to pack this bck up and send it bck and go bck to yamaha, but I got a really good deal on this, half price so I want try fix this if it can, I'm a newbie to this so maybe I'm doing something wrong here, I've read some people are using the audessey app as a tone control/eq to get more bass but I'm not sure how I do this