Although you directed your query at Charles I might say that I used the Aeons / Scripts / Theatre initially with a Denon AVR-5800 (nominally 170 W/Ch) and they sounded fine and I have no doubt that they will work well with your 3805.
The problem with multi channel amp specs is that they rarely (if ever) deliver the claimed power on all channels at once, but against that, in movies, it is very rare that all channels are firing up at the same time. An amp's characteristics depends, amongst other things, on its damping factor, ability to stop and start the speaker cones to deliver sharp transients and their decay, and ability to supply power in current rather than just volts. This is why standalone amps are often used and power ratings used way over that required - a big amp at low volumes usually sounds better than a little amp at high volumes and also reduces the speaker destroying risk of clipping.
There is also a tonal difference, between amps, and I think this is most marked between US/UK amps vs Japanese gear - IMHO Japanese amps sound smooth, refined and controlled but sometimes lack the ball grabbing excitement of Theta/ARcam/EAD/gear ....
In terms of bang for buck and listening pleasure your speaker purchase will provide a much greater difference than your digital source, cabling or amplifier choice so I'd say buy the speakers YOU like the sound of and save worrying about the finer print of amps, sources and interconnects for the day when you can afford embarking on a very expensive journey.
FWIW I use a Theta Intrepid with my MLs - but there's absolutely nothing wrong with your Denon - I just personally don't like the sound of Denon amps.
The problem with multi channel amp specs is that they rarely (if ever) deliver the claimed power on all channels at once, but against that, in movies, it is very rare that all channels are firing up at the same time. An amp's characteristics depends, amongst other things, on its damping factor, ability to stop and start the speaker cones to deliver sharp transients and their decay, and ability to supply power in current rather than just volts. This is why standalone amps are often used and power ratings used way over that required - a big amp at low volumes usually sounds better than a little amp at high volumes and also reduces the speaker destroying risk of clipping.
There is also a tonal difference, between amps, and I think this is most marked between US/UK amps vs Japanese gear - IMHO Japanese amps sound smooth, refined and controlled but sometimes lack the ball grabbing excitement of Theta/ARcam/EAD/gear ....
In terms of bang for buck and listening pleasure your speaker purchase will provide a much greater difference than your digital source, cabling or amplifier choice so I'd say buy the speakers YOU like the sound of and save worrying about the finer print of amps, sources and interconnects for the day when you can afford embarking on a very expensive journey.
FWIW I use a Theta Intrepid with my MLs - but there's absolutely nothing wrong with your Denon - I just personally don't like the sound of Denon amps.