I wouldn't touch it with a ten foot pole.
Here's why. It has nothing to do with the sound quality - Arcam and most of the upper scale receivers have pretty good sound for music replay. I heard an older flagship Arcam and it sounded pretty good - about as good as their dedicated integrated.
The problem is that the flagship home theaters are basically obsolescence boxes that in a few years will lack one or other important feature - how many 5-8 year old flagship $5,000 receivers have HDMI 1.4 inputs and ouptuts and 1080p upscaling and 3D support etc etc?
What makes more sense to me is to purchase three or four 2 channel dedicated power amplifiers. Decent ones like the Rotel RB 1050 can be had for about $400 each. 4 of them give you eight channels and cost $1600 (and less if you buy used - no reason to pay new prices for power amps as they'll last decades). Power amplification done this way will better any receiver I should imagine. Now the difference you can buy either a receiver with preouts on the back that has all the "current" features like the $599 Yamaha RX-V667 which will do pretty much everything you could possibly want. It has preamps for all 7 channels so you simply connect an RCA cable to the power amp - easy.
http://hometheatergears.com/yamaha/y...x-v667-review/
Here's a What Hi-Fi Review
http://www.whathifi.com/Review/Yamaha-RX-V667/
All of this costs a lot less than the Arcam and while the Arcam may have an edge in sound quality of the preamp - my bet is that the Rotel or other dedicated power amps will trump that.
With my proposal in 5 years when the Arcam is completely out of date - you might get 1/5 what you paid for it. Receivers are basically worthless in the trade in shop. in 5 years the Yamaha will also be out of date but so what? You paid $600 and you can probably sell it for $200 and then just buy a new Yammie with even more and better features - when you only get 1/5 for the $2500 receiver and lose $2000 on it - well losing $400 in trade is acceptable losing $2000 is tough to take. Remember nobody will want a used out of date receiver for the "sound quality" since they will get WAY better sound from an Arcam Delta 290 integrated for $300. And in 5 years the yamaha $600 receiver will "do more" than the 5 year old flagship Arcam - this is why receivers are worthless. my dealer sells old $4000 receivers for $250 and even then I wouldn't buy them. Too much stuff inside them and when they fail it will cost three times that to fix the damn thing.
You don't have to get rid of the power amps - they don't really go out of date.
A dedicated processor is another option - but it needs to have the features and be reasonably priced IMO for it to be worthwhile.
Advantages of Yamaha/Rotel
1) Less Expensive
2) Better power amplifier sound quality
3) Easier upgrade path for the processing and you'll lose less in 5-8 years when you sell the receiver/processor
4) if one thing breaks it's not a total loss. If for instance something big fails in the Arcam out of warranty it's pretty much a paper weight - repair rates are very high. If one power amp fails - sure you lose money on the one power amp but a $400 power amp is better than $2500+ receiver. Further you saved money with the Yamaha/Rotel to offset a failure. Also, separates don't get as hot and failure is less likely than with a receiver to begin with due to better build. Each Rotel has a toroidal transformer versus one shared one in the receiver.
Disadvantages - takes up more space - 5 boxes rather than one box. Although frankly the five boxes to me makes the stereo look a lot sexier and look a lot more like a serious home theater system as opposed to receiver which is analogous to the "All in One Printer" does everything but nothing well.
The receiver advantage
1) Space saver
2) Easier to set-up
3) May have a better preamp - but it may not - until someone directly compares them you might be surprised - my $399 Marantz receiver "sounds" better than my top of the line Pioneer Elite receiver. I would not assume that the Arcam is better because it costs more and it's a more famous audiophile brand name. It may sound better but Yamaha has bounced back and Yamaha has a huge economy of scale advantage over a small outfit like Arcam.
Disadvantages of Arcam or other upper scale receiver
1) would likely have a few more features than the $599 Yamaha but in 3 years the next $599 Yamaha receiver would easily beat out the Arcam. You take a much bigger loss if you trade up
2) if one thing goes wrong the entire amp goes wrong - far costlier to fix and if unfixable out of warranty you lose far more money. I worked at a store that went through 4 receivers in 6 months from reputable names - so...
3) less versatile
4) costs more
And ultimately it is number 4. My route runs the system at about $2200 and gives you pretty much all the features available with much superior power amplification. You could always buy a dedicated preamp with a pass through to the home theater for serious two channel music - with the dedicated power amps you have more possibilities.
I find the British receiver makers behind in absolute terms when it comes to features