AMP I have - Jamo AVR-693. What it lacks in features, it makes up
with sound quality. I can tell you... a massive toroidal transformer
and high grade capacitors: 4 x 10,000 F makes a big difference
when it comes to controlling the sound delivery. I got it for 25k and
even though you have the denon 16xx at 30k I got it because of
its specs and the quality/control of sound. End of the day it does not
matter - only matters if you can go +30 or under 30. under 30 unless
you find a rare real or old piece you can consider them to be a bit
underpowered for full tower speakers but fine for stuff like wharfdale 9.1's.
Point : if youre going to watch movies and listen to music at a high
volume on towers, you want a toroid to drive them.