Cyrus One HD or Roksan K3 Integrated Amp with Monitor Audio Silver 300's ?

[Witterings]

Looking for an Amp to go with some Monitor Audio Silver 300's, I've probably narrowed it down to the Cyrus One HD which would be my preferred but mainly because of the cost, the other I was looking at is the Roksan K3 I/A and with the price difference was wondering if I'd notice a big difference betwen the 2.

If the Roksan was going to be a major step up I'd happily spend the extra but inly if there was likely to be quite a noticeable benefit.

Any help much appreciated!