Never have I ran across a more polarizing subject than the Krell "sound".
I have tried out many, many fine integrated amps and a few separates by Bryston, Parasound and Proceed. I ended up keeping my Krell KAV 300iL as somewhat of a cost performance compromise.
Some of the bashing that the 300iL/400xi take is completely out of line. I have owned products that I really disliked but will never badmouth. I will state my experience, associated equipment and make a hopefully coherent opinion on the products pros and cons.
I am using the 300iL to power my Dynaudio Contour 1.3 SE monitors and feel that it is a beautiful match-up. I was reading another thread and the bash was abouth the "small" transformer. I called Krell and was assured that the transformers are 800 VA. Now that is not huge but but adequate for the power rating into 8 ohms. The power consumption is 1100 watts. These figures are far from inadequate. Look at the numbers of comparably priced and powered integrated amps and check out their numbers. There are a great number of supposedly very powerful amps out there utilizing 350 VA, 400 VA transformers, yet they are not bashed.
I have read the now legendary Stereophile review of the KAV 400xi as well as the measurements by John Atkinson. Always mentioned is that it did not double its power into 4 ohms but 350 wpc is none the less very impressive and the 290 wpc clipping power into 8 ohms is never mentioned, not once. Also J.A. didn't do the dynamic power output test that he so fond of doing with many amps. This begs the question: Why not?
I am not a Krell guy, an NAD guy, a Bryston guy, but a music lover. It seems that Krell has taken the place of McIntosh as the brand that audiophiles love to hate. I am not out looking for the flavor of the week, latest and greatest, outdated old and moldy next week product. I enjoy fine sounding, well engineered products and the Krell KAV 300iL/400xi meet those criteria for ME. YMMV.
You see, my results may have been different by far if I owend B&W 805s or the such. The sound depends on the WHOLE system! Dynaudios are known for their smooth treble, low efficiency and lightning fast transient response which to me makes them and Krell a great match. If you want to say that a product sounds like crap at least take the time to state your associated equipment, other than that your opinion is less than useless.
My equipment experience: Krell KAV 300iL,Definitive Tech. BP-10, Dynaudio Audience 52, Dynaudio Contour 1.3 MkI, Dynaudio Contour 1.3 SE, YBA YA201, NAD C320BEE, Bryston 2B, Parasound HPA1000, Proceed AMP2, PS Audio 4.6, Cambridge Audio 840A, Creek 5350SE, NAIM Nait5i, Arcam CD73, Pioneer BDP-51FD.
Ultra high end? No. Esoteric? No. Very good? Yes!