chebby:Small matter but ADM9.1's do not provide FM/DAB tuner or a CD player whereas the other options do.
The ADM9.1's are therefore not an 'all-in-one' system. (No sources.)
They are also NOT recommended (by their manufacturer) for use with CD players or FM/DAB tuners.
I think - to be fair - we should keep to the 'brief' of all-in-one systems posted by the OP.
To make ADM9.1's into a complete system requires (at least according to it's manufacturer) an iMac or MacBook which costs about £1000 extra if you don't happen to have one already. I doubt AVI would be too thrilled if you proposed to use a PC or a stand-alone CD player or even an FM/DAB tuner with it
(It would also cease to be compact.)
Even if you just added a PS3 or Apple TV - as a source for the ADM9.1's - then the total cost would exceed £1500 and is therefore outside of the budget limit the OP set in the question.
There is quite a lot of misinformation here:
Internet radio gives you 10,000 radio stations using better compression and having better sound quality than DAB/FM.
What is wrong with the iPlayer for radio too and Podcasts? It's a better and more flexible way to do it IMO.
We are perfectly happy for people to use CD players and Tuners and some do, but it's terribly restricting. This is all new to everybody, so we explain what we think is the best way to use the system.
An Apple TV will do it for £200 or any Netbook from £175 upwards. SO IT IS VERY COMPACT AND FAR MORE VERSATILE.
A PS3 + ADM9.1S would cost £1425 according to my maths.
Don't forget that the ADM9.1s have 325 WPC or that an active crossover has one hundredth of the distortion of a passive one and one hundred times the damping factor, so there is also fairly dramatic improvement in sound quality to consider.
I really do recommend anyone interested in an Integrated modern system to consider what the right computer can do for you. Not only does it do hi fi and radio, but it also allows you to rent or buy TV programs and Movies, stream video and slide show your photos on the TV.
We prefer Apple computers that start at a little under £400 because their Media Program, Front Row is the best there is and operates from an included handset, so the whole family can manage it with upsetting computer functions. Apple is almost immune to virus's, silent in operation, beautifully made and designed, easier to repair and longer lived than windows PCs.