My recommendation is to buy what you love the sound of. It’s like picking a favorite color....it’s unique to your tastes, and there’s no wrong way to do it.
As a rule of thumb, speakers tend to influence the sound the most, but the more revealing the speakers are, the more you can hear the other components, so in a high res system, everything matters...learn how to optimize your components to get the most from them. It’s also worth noting that smaller speakers with a little less bass output are easier to match to a room than large boomers. You can always add a powered subwoofer system later on if you feel the need for more bass. Speaking of the room....it’s a huge factor, so you may need to address your room as well.
I’ve owned a lot of amps over the years. None have brought me more pleasure than Bob Latino’s VTA ST-70 from
Tubes4hifi. Tube amps can have incredible resolution that offer insight like nothing else can, and are easy to listen to. It’s within budget as a kit, which depending on your skill set might be a tall order, but it’d sure help you learn about and appreciate what you’ve got....food for thought. Used components and kits can help you get better sound for your dollar.
It’s a journey with a learning curve and
filled with great music....enjoy it!