+1 @ditusa
The Pathos is a great integrated amp... but it is a poor pairing with high impedance low efficiency speakers, as the OP stated in the original post. You have a choice — keep it and get 8 ohm or greater speakers with a sensitivity of ideally 92 dB/1 m or greater (having subs in the mix will lessen the load on the amp and allow lesser sensitivity) —- or get a high wattage solid state integrated amp to go with the Sonus Fabers. Hegel would be a good choice
The Pathos is a great integrated amp... but it is a poor pairing with high impedance low efficiency speakers, as the OP stated in the original post. You have a choice — keep it and get 8 ohm or greater speakers with a sensitivity of ideally 92 dB/1 m or greater (having subs in the mix will lessen the load on the amp and allow lesser sensitivity) —- or get a high wattage solid state integrated amp to go with the Sonus Fabers. Hegel would be a good choice