the Krell gear, to me all sounds hashy and hard in the high end, ok throughout the mid, and with tremendous bass slam. I owned the KAV300i for a period, and it melted down, enough so that the factory, to their credit replaced the unit. It was nothing like the Jungsen amp I have now. The Jungsen is one of two integrateds, I own, one is the (please don't throw knives, I am not a shill, a DK. While the DK is notably better, it costs a considerable amount more.) I think the overall sound of the Jungsen is sweet and musical, and stages nicely, and is well worth the price of admission.
Subjectivly one of the better values in audio. Plus it looks killer.IMHO it is much more musical than the Krell gear, and better looking...of course again subjectively.
Plus the inherent advantage of Class A design with no switching distortion, it is, given the price a no contest winner product.
It is not as fleshed out as the DK but a helluva product nontheless. The above post hits it dead square, when it talks about the organic sound. As far as speed, I think that speed, infers something not usually thought of in music, in terms of musicality, IMHO. Great sound for a low price.