Since when did money-equivalence be a justification to this ... :lol: Hear first ... then comment.
You meant to say it is 'better' than all other options being discussed here?hyeah:
I have heard it not less than 4 times, yes it sounds good when paired with matching speakers but it does not mean that it is the best option to consider for all matching speakers, especially when someone has a decent budget. Again 87db of Q300 is definitely not high sensitivity so I do not understand how you concluded that it is a great match? There's lot of difference between 87db and 92db speakers in terms of drive-ability.
Note that the OP has not liked his Denon AVR for music (that he sold it!) so there won't be happy with topping for sure. Topping lacks the oomph factor in fidelity department. Q300 is a gem of a speaker, so it demands a better amp to drive it than the T20. One matching amp is Denon 710AE which can beat the pants off the topping.