How much does power amplifier really matter comparing to other hi-fi components?

I spent 50% on speakers....  60 % on amp , 50 % on sources....

^How much was spent on maths studies?:-)

Everything adds to the sound quality, but some things count more than others.  The speakers that you buy set the tone for the rest of the system.  Expensive, very revealing speakers will be more sensitive to sources, amps, etc.  "warmer," less detailed speakers will be more forgiving of other problems, so you will be able to spend less on the other components.  That being said, I listen exclusively to digital these days, and with a very good DAC/power amp combo, you have the foundation for a system that will allow you to expand the quality of the speakers without having to upgrade everything.  Remember that more than anything else, speakers play the biggest role in shaping the sound that you hear, while you don't have to shell out big bucks for an amp to get great sound out of them.  Get the system set up for your budget and then upgrade things like cables, power conditioners, room treatments and the like.

Op, 

If possible, take the time to understand what is important to you in a system. 

I have a pair of powered Dynaudio Focus in my living room and  a pair of smaller Dynaudio Xeo in the bedroom. They share streaming music through a wireless hub controlled by my phone. I love it. 

Even my lower end home theater receiver sounds good to me… and that’s blasphemy in these circles.

I’ve had separates and it’s not for me. Same with tubes. 

My long winded point is try to listen to a range of systems before you decide on a budget. No need in building a dedicated audio wing on your home just to realize your cousins $1,500 system sounds pretty dang good. Or maybe it should be a two story wing, haha. 

Run your own race, hope you enjoy your new system!

Don’t forget those REALLY expensive fuses!!!