Very nice speakers. They are very efficient but also very revealing. So, while the Cambridge receiver may be able to drive them to relatively high volumes, the speakers are able to translate to your ears the fact that you are using a budget HT receiver lacking the nuance and detail of better electronics. In fact, the Cambridge 540A integrated amp would probably provide noticeably better 2 channel sound than the 540R you are currently using because the 540A has many fewer circuits to color and clutter up the sound.
I agree with the previous posts and for the amps you list, the Jolida would be my first pick and then the NAD. But I would try them both since you never really know what will sound best until you have listened to the whole system together including your computer source. Another thought, you may also want to try the Cambridge 640A, 740A and/or the Rotel RA-1062. Those will be within your budget and are all decent sounding little high current amps.
You might also want to spring for slightly better speaker wires. 12 gauge wire from Blue jeans cable dot com, or bulk stranded or solid core wire from Audioquest would provide a relatively low cost improvement over what you are currently using.
I agree with the previous posts and for the amps you list, the Jolida would be my first pick and then the NAD. But I would try them both since you never really know what will sound best until you have listened to the whole system together including your computer source. Another thought, you may also want to try the Cambridge 640A, 740A and/or the Rotel RA-1062. Those will be within your budget and are all decent sounding little high current amps.
You might also want to spring for slightly better speaker wires. 12 gauge wire from Blue jeans cable dot com, or bulk stranded or solid core wire from Audioquest would provide a relatively low cost improvement over what you are currently using.