garyjos:I have the denon dm37 but am curious to how much better the arcam solo mini would be, would there be a good significant obvious difference in sound quality?
You ask two questions.
The title asks....
"Arcam solo mini (As good as separates for same price) ?" How many seperates? CD + Amp + DAB/FM tuner or just CD + Amp? Are you splitting the budget two ways or three ways?
The Arcam Solo-Mini - by it's very nature - is not intended to compete with seperates. (Arcam make a whole bunch of those anyway.)
The amp section is excellent and despite being rated at 25w per channel will see off any number of mini-systems and quite a few budget stand-alone amps for quality if not brute wattage. (Remember those sensitive speakers.)
The CD player section is ok but I am very intolerant to CD players in general and Arcam ones in particular. I have heard the CD73, Solo-Mini, CD17 and CD37 and they were all a bit uninspiring. However it was 26 years before I heard a CD player that I liked(!) so you are much more likely to enjoy it than me and it will
probably be better than the Denon microsystem one.
You also ask whether the Arcam Solo-Mini is better than the Denon DM37. Almost without a doubt yes. (Given sufficiently sensitive speakers and good enough quality speakers to reveal the differences and a properly installed FM or DAB roof aerial otherwise you are wasting your time with ANY tuner.)
If you are not wedded to traditional CD replay (or having a built-in tuner) then spend the same money on a £500 amp and a £200 DAC and plug in your computer and your Freeview/DVD recorder/Sky/Virgin Cable box and use iTunes and Freeview radio instead.
If I were you though, I would live with the DRM37 for a lot longer and save very hard and get a new naim
uniti all-in-one and skip the Arcam