Changing the speakers will have the greatest impact on your sound. It used to be an unbreakable almost religious code that you pick your speakers first and build your system around them. Somehow that simple rule got lost, but I remain true to it. So get the speakers assuming it is as good business/financial deal compared with the amp. The cost to you may be the same- but are the two roughly equivalent in terms of discount.
Speakers or Amp
My current amp is a Jeff Rowland Continuum S2 Integrated amp. My current speakers are Aerial 7ts. I have an opportunity to change one or the other. I can go from the Continuum S2 to the JR 625 mk2 with the Capri 2 preamp or from Aerial 7Ts to Raidho C3.1s. for about the same cost. I'm try to improve spacing between instruments and add a little more air. Looking for feedback from anyone familiar with the aforementioned components or general thoughts regarding the best option.