I have done extesive listening with the Kef/Krell combo and I was not impressed with the 300i, very cold sounding amp. The current setup that I have is Quad 606II which sounds far better with the Kef's, the NAD has a sound closer to Quad and Cyrus than Krell. Besides the 300i was not a good model, infact some think it was the biggest mistake Krell made. Krell was also very quick to come up with an upgraded one. If any other Krell was being discussed my opinion would not be same.
If it is easily available to you for audition, by all means try it, you can make your own judgement.
If it is easily available to you for audition, by all means try it, you can make your own judgement.