You don't need such a big amp. I am currently listening to a 2 wpc amp, probably most of the time at closer to 1/4 watt. Now my speakers are 96 dB so that helps.
photo of my system as currently configured. amp looks tiny on top of the system.
Hooked up an old realistic power meter
Not sure if anyone remembers the Realistic APM-300 and I've had one from years ago and decided to hook it back up for fun. According to it, for most music and volume I listen to, it says I'm using barely a watt.
My speakers are 87db for one watt, amp pushes 225. My sounds level meter confirms the approx. 88 decibels I listen to and I did crank it up to around 90+ decibels and was still only using a few watts.
For some reason I though I would be using way more power than that and wonder why if everything is correct, why I need such a big amp?