Hello everyone, I am a newbie in the audio industry so I respect every suggestion (s) and comment (s). Right now I have Focal Profile 918 floor standing speakers and driving it is a Cambridge Audio 540 R V2, a bad mistake buying the piece. I've called the dealer and they kind of yell at me for being stupid, well at least that what they meant. Anyway, I can return it and get store credit toward a different product and was asked nicely not to shop there anymore. They recommend the Cambridge Audio 840A; is there any other choice other then CA Integrated amp? I have a budget of 800. It a bit low but it all I can afford now. Thank you!
The amp you have should indeed be ok. Before you spend another $400 bucks. I'd investigate as it may be the speakers in your room versus what you heard at the dealer.
you probably already know this, but in the future try to work with dealers who will let you take things home to try before buying or at least offer a full money-back guarantee for a few days but preferably a week or two.
While I am thinking of it; Do the speakers have 100 hours on them yet? If they don't- this could be your problem. Also- speaker placement would be another thread I would start seperately. At the very least- put some bass intensive music on and walk around your room. Does it sound good anywhere in the room?

Your choices are limited. I would arrange to take a couple of amps home or at least one at a time and listen.

Out of everything listed, the Jolida excites me the most, but your problem is bass, and that is probably the single biggest limiation with this amp. The NAD on the other hand, will command those woofers with authority, but may not be quite as convincing through the midrange on up.

Your choice is going to represent a compromise (all of our choices do) so you really need to listen for yourself and decide.

Another idea- if they have any demo power ampliifers- you could run your mac mini straight into the amp and control volume, etc from the PC. Or possibly add an inexpensive Axiom passive preamp for external control.

Your dealer should welcome taking something home for a listen.

Let us know, and dont hesitate to tell them you are asking for advice on the Internet if the discussion should begin to go south. That might put a little fear into them. This is an extraordinarily powerful community and our members are obliged to hear about poor dealers that should be avoided. (as long as they are truly poor dealers)

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Thank you everyone for your comments, it really help me alot. I will go to the dealer and ask if I can take any of the amp home for a demo. The dealer is not a bad dealer, I think they are unhappy because I go there to much and ask too much questions and didn't buy anything. They may feel that everything they said doesn't mean anything to me. But I respect everyone comments and advices, and am very happy for the help because I don't know any better.