Amp recommendation and setup advice please

Emotiva 6s.  For $100 more you get larger drivers, twice as much power, twice as much weight in the cabinet.  The 6s will play lower (bass) and will have a more refined sound in comparison, so it is definitely better.  I was just trying to play in your budget sandbox and the 5s was already more than what you were looking at with the Audioengine A5+.  I also threw the more expensive NFB-29.28 out there as an idea because the cheaper 11.28 had limited inputs (only 3 digital inputs and no analog inputs).  The more expensive NFB-29.28 also has two sets of RCA outputs – you could use one of these sets to connect to a subwoofer in the future to help fill in the very low bass.

You could upgrade either the Airmotiv or the Audio-GD DAC and get better sound – or upgrade both.  It all depends on your budget and what you really want.  The 6s will definitely be an improvement in sound experience (but punch/bass for TV).  I think the cheaper NFB-11.28 will be totally fine for your situation.  Just know that you are limited on expandability.

CABLES: I make all my cables by hand.  They use Furutech Rhodium Carbon Fiber XLR connectors and 20awg solid-core OCC copper conductors in a double-braided configuration (making a 17awg interconnect).  The cost would be about $800 for me to make a 1-meter pair for someone.  This has been the best sounding cable with the most resolution I have heard to date.  I have had the opportunity to compare it to the Wire World Eclipse 7 XLR cable at $450 for 1-meter (NOT the Silver Eclipse).  The sound was very similar and the Wire World was an excellent cable.  All the detail was there, but the Wire World was just slightly softer / laid-back in comparison.  The Wireworld design is not quite solid-core (all the conductors are set side-by-side like a ribbon cable), but it is not nearly as bad as stranded conductors either.  For the money, it is an awesome able.

IMPORTANT: On another note, one more thing you should be aware of is the A/C voltage.  I know 220V is usually normal in Europe, where US is 120V.  Some equipment can be configured/switched to use different voltages, some equipment will automatically sense and adjust.  Some equipment will need to be send to manufacture to be modified internally.  You might was to make sure from the seller if a non-adjustable item is configured for your local A/C voltage.

So if I were to do it right first time round for the vinyl setup then I should go with the Hegel integrated amp, the Gustard DAC, and the PS Audio Nuwave phono preamp. Is this regardless of which speakers and turntable I choose?

Yeah, this would be a very fine setup regardless of turntable.  There could be other good choices for phono preamp, and it is obviously based on what you can get shipped to you.

There are a couple Silver 10 available on UK Ebay site.  Hopefully, these links come across:

http://www.ebay.co.uk/itm/New-Monitor-Audio-Silver-10-3-way-250w-floorstanding-speakers-in-Black-Oak-/382244206068?epid=1824988012&hash=item58ff87b5f4:g:iowAAOSwojxZlxtn

http://www.ebay.co.uk/itm/Monitor-Audio-Silver-10-Speakers-Pair-Walnut-/332406853482?hash=item4d64fe0f6a:g:HcEAAOSwEIFZ272G

The Monitor Audio would definitely have the combination of warm/detail and low end punch that you want and still be in your budget.  They are 4 ohm speakers, so the Hegel would probably be the best integrated out of the list, since it has the largest power supply (critical for low impedance speakers).

There are some B&W CM8 or CM9 speakers on UK Ebay.  The B&W will have a warm/full midrange due to the Kevlar midrange driver.  The Kevlar does have a breakup issue where the midrange is somewhat smeared, but it is still very nice sounding.  However, these B&W speakers will not have the low-end punch that the Monitor Silver 10 has. The B&W’s have very small 5” or 6.5” drivers in comparison to the two 8” drivers in the Silver 10.

I would avoid Tannoy speakers.  In my listening tests, I did not like them because they were so laid back.  I have also heard that Sonus Faber is laid back as well.

Older tweeters were typically soft-dome (which is a synthetic material) or metal dome (such as aluminum or titanium dome).  The soft-dome were very nice sounding and did not have breakup/resonance issues, but they did not have quite as much resolution.  The metal dome tweeters help with resolution, but the metal material would breakup/flex/resonate are the tweeter frequencies and this caused the sound to be very bright/harsh.  The ribbon tweeters do not have this breakup problem, but they also sound laid back and are not as exciting.  The C-CAM tweeters are based on ceramic material, which is an excellent and stiff material. The newer ceramic / beryllium / diamond tweeters have better performance, but they can be a lot more expensive. 

I was using B&W Diamond (D2) series speakers, which I find to be excellent (but they are wayyy out of your price budget).  I was looking to upgrade and the Monitor Audio Platinum was on my list, but I decided to go with B&W D3 because of the diamond tweeters.  The Monitor ribbon tweeters were noted to be not exciting (but still extremely smooth and nice sounding).  I am very happy with the B&W D2 and D3 series.  I put the Silver 10 as a recommendation because it does use the C-CAM tweeter.  For your budget, I can’t think of another speaker I would recommend.  I will say that I am not well versed in speakers and there are a lot of other options out there.

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Regarding your question on sub.  A subwoofer is usually needed when the listener wants extreme bass response in movies/tv.  I’m talking about earthquakes, explosions, massive bass thumps.  It’s a matter of taste.  If you just want to watch “general TV”, the Airmotiv/Audio-GD is fine.  If you were really concerned, you could get the more expensive NFB-29.28 and add a sub.  The Airmotiv will play “full range” and the subwoofer crossover would be set low at about 40-50hz to fill in the very low bass.

The Yamaha is better than the Hegel?

No Way.  This must be a joke! Lol.

Ah found it:

C-CAM—a thin, light, and rigid alloy of aluminum and magnesium with a ceramic (alumina) layer

Read more at https://www.soundandvision.com/content/monitor-audio-silver-10-speaker-system-1#iPmjhjbLRtu2OmEk.99

hopefully this helps.