emerald
Devialet or Vitus
It seems all the JM Labs Utopia range have quite a difficult impedance and -phase angle loading for an amp in the bass.
I’m with respected_ent and would opt for the Vitus amp which is Linear Class-A/B and linear power supply, over the Devialet being Class-D
http://i.nextmedia.com.au/avhub/australian-hifi_reviews_2013_2013-06_vitus_audio_ri-100_integrated_a...
Cheers George