Short List of Amps I prefer over the Pass Labs XA25 or INT 25

@chorus Not to be a Pass pusher, but you may also consider some first watt offerings.  Nelson tests all of his products on Tannoys and as such you should be able to find an ideal match from the lineup.

In various systems over the years I've tried a number of amplifiers (Atmasphere M60s, Lyngdorf TDAI3400, Coincident Frankenstein 300b monoblocks, Classe INT150, Pass Labs XA30.5, X250.5, XA25, First Watt SIT2, and DIY First Watt SIT3 and F4 monoblocks). 

I've always enjoyed the Pass products, but did not end up buying the XA25 I demoed, sticking with my underpowered Coincident Franks before ending up with First Watt F4 monoblocks (all with Coincident PRE speakers, see my system page).  

I don't quite have enough experience to be sure that this is the reason, but both the Coincident 300b Frankensteins and the First Watt F4s are dominated by 3rd order harmonics, while the XA25 is dominated by the 2nd (and all three have low levels of higher order harmonics).  My guess is that my ears are sensitive to the balance between the 2nd and 3rd, and prefer amps that are 3rd harmonic dominated. 

Given everything that you've stated, it might be worth trying out a First Watt F4.  Since you don't listen loudly, you probably will be ok with a zero gain amp.  My system can also be bright and I'm also very sensitive to forward amplifiers, and find the F4 to be refined and smooth on top. Unfortunately they don't make new units, but the price will be right if you can find one used (or have someone DIY one for you, they sell official boards at the DIYAudio store).  

@bigkidz Is there anyway I could get some pictures of your P-T-P version of the First Watt amp?  I've been considering a top quality part upgrade to my F4s and wouldn't mind also eliminating the circuit board either.  Would be really useful to see a template in making the transition.

I will say that building separate power supplies for each channel in the F4 made a huge difference in the sound.  Don't think I'll ever go to a shared power supply again.  

Two quick thoughts...

1.  @tomlhuffman is completely correct that every outcome is totally system dependent.  This issue is routinely ignored on the forum, which is to some extent the nature of the beast... but really, it's unfortunate that every person doesn't list their system along with their post (or in their associated system page).

2.  @chorus, I'd just like to note that I also was more interested in SQ than value.  Once I bought my Coincident Pure Reference Extreme speakers, I went on an amp search that involved Atmasphere M60s, Lyngdorf TDAI3400, Coincident Frankenstein 300b monoblocks, Pass Labs XA25, and DIY First Watt SIT3 and F4 monoblocks.  I originally built the F4 monoblocks as a booster amp to pair with the Coincident Frankenstein 300bs in order to improve bass performance, but ended up preferring them to all the other amps listed.  They also happened to be the cheapest.  I was happy about that, but it had no impact on my decision, however.

3.  @kalali, I totally agree, and it's a shame how often this happens on Agon.  Fortunately, at some point during the discussion it did come out that the OP has Tannoys, which is the only reason I posted about alternative Pass products.

As mentioned above, it speaker/amplifier match always matters.

Try putting 500 watts and a high damping factor on a high sensitivity full range driver, or an 8 watt SET on a YG acoustics and see what it gets you.

Too bad there’s not a database where someone tracked every amp/speaker combination used at the various audio shows. Would be useful to see what combinations people used when working to sell their gear.