It would be easier for people to give you recommendations by defining what you mean by "high-end". What's your target budget and for what? Two channel? Multi-channel? TV? Movies? Dimensions of your listening room?

It would be easier for people to give you recommendations by defining what you mean by "high-end". What's your target budget and for what? Two channel? Multi-channel? TV? Movies? Dimensions of your listening room?

The above replies are some good points. My second question is what is your current system? You can spend the money real fast but if you don’t know what youre doing or what your end goal is...you’re gonna end up at a Best Buy with B&W’s, McIntosh Amps (both of those are great)...Audioquest Type 4 cables...stock inter connects...meanwhile your power sources will all plugged into a power strip from Target. Or they’ll try and sell you a 10k power conditioner.

Dorsia makes excellent points! You have lots of cash in your budget and there are lots of snake oil sales people out there who will see you coming from a mile away if you have no or little idea of what you're doing and trying to accomplish. If you are, indeed, starting from scratch in the audiophile know-how department, I would strongly recommend that you visit as many high-end, reputable audio shops as possible, ask to listen to systems in your budget range and take notes, brochures, etc. Doing a healthy amount of reading & research wouldn't hurt, either. If you have an audiophile friend who could provide proper guidance, that would be helpful as well. Does "40 m2" mean 40 square meters? The size and shape of your room matters with regard to acoustics, as does ceiling height and other factors (e.g. concrete floor? carpeting? furniture? listening position? etc.). This should be factored into your critical listening sessions or auditions. It would be woefully easy to spend 50K CAD on a system that doesn't sound any better and even worse than a 20K CAD system. Higher prices do not necessarily equate to higher quality. For 40 or 50K CAD, you should be able to get a system that nocks your socks off! Given the size, dimensions and acoustic properties of your sound room, you may find you don't need to spend anywhere near that much to achieve outstanding sound performance.

1. Determine your use cases for audio enjoyment. (Recommend that you don't prioritize Bluetooth.)
2. Audition as many speakers as you can to determine which sound best to YOU -- preferably in YOUR environment.
3. Determine the requirements to properly drive your desired speakers.
4. Research which amps satisfy both #1 and #3 above.

That said, if after determining your use cases you find that you still seek an integrated amp with connectivity, take a look at the features of the following:
- Mark Levinson No.5805
- Devialet Expert 220 Pro
- NAD Masters Series M33

NOTE: I have not personally auditioned any of the above mentioned IAs, so this is more of an awareness comment than a recommendation.

First decide whether you want to set the world on fire or just enjoy some tunes. Probably best to invest your money in alternative energy stocks and good reliable transportation. Stimulus checks are probably not going to happen any more.

One advise from me. DO NOT IGNORE THE ROOM!. The room and speaker positioning makes 70% of the sound you perceive, if not more. 1M system will sound crappy in crappy room, that's for sure. Treat you room properly and make sure you position speakers properly.

You will have to do some listening. A McIntosh and Mark Levinson system could not be much more different. If you don’t live near any high end stores, then I would plan a trip to a big city with one. Given your budget, I would call them up and explain the kind of music you listen to and explain on trip one you want to get a feel for the field as a whole... so maybe sample a tube system and a solid state system... let them plan and set up a couple rooms for you. Then after an initial trip. Read about what you heard... maybe take notes. Don’t listen to choose... just listen to hear and appreciate. Take a list of stuff you like listening to.

Cross off blue tooth. It has no place in a high end system.

Every component is critical (the streamer is very important), as is DAC, Preamp, and amp. I would not worry about high end interconnects at first purchase. But many people would say 10 - 15% of budget... I recommend getting the best components you can first.

You want a dealer you can trust. You need to feel comfortable they are working for you. And yes, normally they are going to recommend what they sell. So going to a large well established dealer is important. Until you have a good system it is hard to evaluate individual components and choose how they will work in your system. Spending a bit more than you might on-line can be extremely valuable. Buying less expensive stuff on line is a great way to get a crappy sounding set of components.

There is a large number of systems that could make you very happy. There is not one best. And exposure will change your idea of what you want, so exposure is really important.

Trying to stay within $50,000 budget. I will let others speak about streamers.

Classe Delta Preamp and Amp. What is unique here is that these are DESIGNED to be safely stacked.

Revel Salon 2 (Or Performa 328Be if pushed over budget.)

Marantz SA-10 CD/SACD Player

Tributaries Plus speaker wire

Have heard the Classe stack and sounded very very good. Transparent speaker wire was surprisingly good. You might also want to have a dedicated 20 amp receptacle put in by an electrician to do justice to your equipment.