Andski - I spoke to an audio buddy last night who was using an ARC VT100 to drive his 88db speakers. He recently changed amps to a 70 watt per channel Berning ZH270 and told me that even at a lower power rating, these amps sound MUCH more powerful than the ARC -- better in every way.
Like the Tenors, the Berning is an OTL design so I suspect the 92db of the Amati's would be an okay load with the 75w Tenor.
Like the Tenors, the Berning is an OTL design so I suspect the 92db of the Amati's would be an okay load with the 75w Tenor.