I’ve had a "factory upgraded" Jolida 502p for years and am so impressed with its quiet and powerful presentation of tube slam and refinement I that I don’t hesitate to recommend this stuff…that 3502 looks cool, and hey, it’s still much less expensive than any comparable amp from anybody else. There are very few new reviews of Jolida amps, and simply zero ads in appropriate magazines…not sure if there’s a connection there, but modern Jolida (the MD guys) gear deserves some props for design and execution. Having personally compared my amp (a few times in my own listening space) to similar amps costing much more money from frequently reviewed manufacturers, I’ve felt the Jolida is simply better sounding, or at least every bit as musical as the much more precious stuff.