Best choice Classé CAM-350 vs. Halo JC1 or ML 432?

Hello audiophiles,

my system is currently consisting of a pair of Isophon Cassiano D loudspeakers (with accuton ceramic/diamond drivers), a Emm-labs CDSD/DCC combo and a pair of Classé CAM 350 mono blocks. I just received my new speakers a few days ago and after the first 20 hours of listening (up to now the speakers have burnt in for about 50 hours totally) I'm very much satisfied with the airy and extended hights. Soundstaging is just incredible and the overall sound is non-fatiguing.

However, as we audiophiles are always looking for improvements I'm now looking for a "budget" upgrade of my current Classé amps.

Within the new system setup I would wish to have a power amp with extended hights and more slam/weight in the bass region. On the wish-list in also a slightly more forward/involving soundstage.

As i could get as well the Halo JC1 as the ML 432 for a reasonable price on the european used market (for a pair of new Halo JC1 they are asking 10.000 Euro!!). I thought it's worth to give one of the two amps a try.

Worth mentioning that my loudspeakers are not the easiest load to drive: between 25-40Hz the impedance drops down to 2,1 Ohm; the speakers are of medium sensitivity with 86 db

How would you rate the Halo and the ML against my Classé sonically?

Thank's for your comments!

Martin