Hello guys,
I read here that Halcro is cold and not involving... and really ask myself the conditions of these listening sessions.
I own a pair of Dm68 and just bought a DM10 to match it (due to the highly appreciated phono stage). The Halcro are many things, but absolutly not cold amps. From my point of view, it's the first amps that provide me the quality of the both worlds, macrodynamic of big amps and microdynamic of finest triode ones.
Sound is defined and sweet together, always balanced, strong and delicate, it's really great amps.
So I didn't try all existing amps and can't say if it's the best amps ever, but I can say that it's not cold and that it's great amps!!!
I use it with JBL K2 S9500 (2 ways with 2 x 14' woofers in appolito) in a 40m2 room (3.5meters high) and never have the feeling that the amps were at there limit, even when it plays loudly.
Just for information and give some references, I lived during many years with an Audio Note system (300B) which is not really something cold and owned several amps as Lamm ML1.1 and Spectral DMA360 (which is a little bit fresh).
I hope it helps.
Best
Ugo