You don't have to match equipment with country of origin. The main issues for speaker matching with amplifiers are impedance and sensitivity of the speakers, for impedance capability and power output of the amplifier. I ran some British speakers with a Japanese receiver in my main system for over a decade, and it sounded good.
Since you asked: What do I think of Cambridge Audio? For free, it is awesome. In absolute terms, I think they are overpriced for what you get. But that does not mean it is bad equipment, just that it costs more than some other gear that I think is comparable. I don't really want to get into an argument with a fanboy of Cambridge Audio, so I don't plan on trying to convince anyone of this opinion. You asked for opinions, and I gave one, and I will leave it at that.
Your best option, if you can do so in the current world, is to listen to as many speakers as you can find, of as many different types as you can find (e.g., domes, horns, ribbons, whatever), to figure out what sorts of speakers you like. And then you can think about whether what you like in speakers matches up with the capabilities of the receiver you have.