How much better is the Krell 400xi compared to the

I owned the 400Xi and I cannot be happier to match it with the Krell CDP kav 280. Love to have the SACD Standard but don't want to cough up 4000.00 for a new unit and not used to with used market. Nothing wrong with used market, but I prefer buying new. Anyway, I have sold one of my 400xi to another Audiogon member month ago and He just e-mailed to tell me how wonderful it sounded. Evidently, he must be very happy with it. I am trying to go separated and trying to sell my second 400Xi but he convinced me enough to take my sale ad. for the second 400xi off the market. Aahmed, thank you for being a good audiophile and your advise is well-taken.

I owned the 400Xi and I cannot be happier to match it with the Krell CDP kav 280. Love to have the SACD Standard but don't want to cough up 4000.00 for a new unit and not used to with used market. Nothing wrong with used market, but I prefer buying new. Anyway, I have sold one of my 400xi to another Audiogon member and He just e-mailed to tell me how wonderful it sounded. Evidently, he must be very happy with it. I am trying to go separated and trying to sell my second 400Xi but he convinced me enough to take my sale ad. for the second 400xi off the market. Aahmed, thank you for being a good audiophile and your advise is well-taken.

I've owned the 400xi and SACD Standard for the past 2-years, very happy with this combo. I didn't hear much of a difference (if any) over the Krell KAV seperates. @ $2,750-new, the 400xi has got to be the best deal right now in HI-End Amplification. It deservedly, has a "Class A" rating in Sterophile magazine, and measured 290 wpc into 8-ohms.

I have had both and plenty of other amps, my question is has anyone made direct comparisons between the 300i and the 400xi?
They are both terrific units but other than the 50w difference which is not really vital for me based on my secondary system driving high performance monitors...difference between 300i and 400xi side by side listening anyone? :) thanks

Is it worth then buying a used Krell 400xi over a used Krell 300i ? The difference is probably about $750 to $1000 ?