My Martin Logan Prodigys (Nominal 4 ohms) dip down to 1.2 ohms. Keep in mind, that this is at 20 kHz, there simply is not that much information going on in that part of the spectrum.
My amps, the Audio Research VTM200 have no issues whatsovever driving these speakers off the 4 ohm taps. They will recreate staggering volume with no loss of qulaity in my 12 x 26 x 8 room.
I imagine the REF 600 would not have much trouble driving any real world speaker.
My amps, the Audio Research VTM200 have no issues whatsovever driving these speakers off the 4 ohm taps. They will recreate staggering volume with no loss of qulaity in my 12 x 26 x 8 room.
I imagine the REF 600 would not have much trouble driving any real world speaker.

