My Cayin 265Ai is a truly remarkable product... it's bested a Bel Canto eVo2i and PS Audio PCA-2/HCA-2 combo among many other worthy models, particularly in the mid-range to high-end. Bass is full and extended, but not quite as detailed as that of the HCA-2 which produced the best bass I've EVER heard in my system.
The Cayin's class A topology and lack of negative feedback probably contribute to its superb transparency. It uses a dual mono design with big transformers and 80,000 microfarads of capacitance, and the soundstage is HUGE - great dynamics and oodles of power reserve. I'm driving 89dB monitors in a medium-sized room and the power on tap is phenomenal - it really belies its modest 40wpc rating. It seriously feels more like 150wpc.
HIGHLY recommended, arrange for an audition!