Thanks for all the replies.
We connected a Pass X-250.5 on the Duetta Sigs and the meter immediately went to the rightcorner went we cranked up the volume.
We did not have much hope for the X-350..
We installed a Krell FPB-600 and it drove the Apogees easily. Very nice combination with a JRDG Coherence Series II and a Krell KPS-20i CD player.
We connected a Pass X-250.5 on the Duetta Sigs and the meter immediately went to the rightcorner went we cranked up the volume.
We did not have much hope for the X-350..
We installed a Krell FPB-600 and it drove the Apogees easily. Very nice combination with a JRDG Coherence Series II and a Krell KPS-20i CD player.