First HIFI system

It should be pointed out that smaller speakers that are also higher efficiency will tend to have more limited bass extension. That’s just physics and the way it works, including Tekton. So a separate sub will likely be needed to get full or near full range bass. You need larger speakers in general to get full extended bass AND high efficiency.

So just pointing out that high efficiency speakers are not a panacea and like most things have a down side. One can choose to live with or work with that or not......its all good.

Also integrated amp technology has come a long way in recent years. Much more can be accomplished in tight quarters there than in years past. Good modern integrated amps can deliver a lot of power and current and a lot of features with a very very low noise floor, unlike much vintage gear of the past. The Vanatoo products are a good example.

https://photos.app.goo.gl/xH2JKLfBkodynuzaA

Do you have a budget you need to stick to specifically? I see those speakers on Amazon for 995 and the Marantz at 699. If budget is close to 2k I think your money will go much further buying used equipment. 

Even on a budget there are all kinds of options. Tekton Mini-Lore with a good $800 integrated for example, might seem to leave you with nothing to listen to. But you could connect your phone to that and it will sound better than the Marantz receiver. That's how big a difference there is between an integrated amp and a receiver. Then in a month or so upgrade to a streamer or whatever source. Then as funds allow upgrade the speaker cable, interconnect, put Pods under everything.... year or so from now you have a truly fine system.  

This approach also allows more time to focus on what you are doing, and why, and learning more about each component. Plus as you learn more you benefit more because each new upgrade you know more and have a better idea what you're doing than in the beginning. People who buy everything all at once have the instant gratification but almost always within a month or so are thinking of what they would have done different. So take your time, make fewer mistakes. Mistakes cost money. Don't make em!

Seperate sub????
Don't you mean FOUR subS?

@mapman 

Maybe you are right. I can't say. But I DO know that there is a t least one generation that listen to Mp3's and think they sound good. Some musicians I have played music with, think 128mbps is CD quality. Since the vinyl resurgence, 've seen a lot of people say that a VG record sounds fine. I can't tell you how many times I see people  listening to music on their phone's pin head size speaker. When offered a Bluetooth speaker, they say, Nah, it's fine.

So I often wonder what modern society believes good sound  is? I've seen too many of the above actions to trust they do. Obviously there are exceptions in both equipment and people.