Looking at, in the future, adding a FlatCap to my Nait XS, as trying my Olive HiCap on it had a positive difference - and Naim recommend a FlatCap.
Does anyone know the physical or tonal differences of each version of a FlatCap and what to aim for (buying used)? Probably looking at a newer style classic FlatCap 2 onwards but certainly not averse to a nice Olive set up either . I know servicing can be needed depending on age (luckily my Olive HiCap is recently serviced).
There’s an article on TNT Audio where they use both a 2 and a 2x but I think it’s with a CD5x. I read it over 10 years ago and I was considering what to get for my CD5x at the time. Keeping it in series seems a good idea to me.
A Hicap2 DR would certainly give the Nait a significant upgrade and match the look Maybe a clean ‘pre-loved’ example?
Both the FC and HC connect via a single Snaic. It is the larger reserve and better regulation that the HC brings to the party.
When I had a Nait XS (first version), I tried a FlatCap XS and found it gave a subtle, but to me, just worthwhile performance upgrade, so I bought it. Later, I tried a HiCap (not DR) but did not like the effect. To me, the HC changed the nature of the sound, making it less natural and musical. Whereas the FC preserved the attractive sound signature of the Nait. However, the improvement was modest and if, as your last post suggests, you’re looking to upgrade your amp in the not-too-distant future, I’d stick the money in the piggy bank until that happy time.
Honestly, the Flatcap is marginally better than the inbuilt power supply but no more than that.
I wasted my money on a FC2 many moons ago. A Hicap is a significantly better unit and much more versatile if/when you move up the chain.
Buy cheap buy twice rule applies