Consider the Electrocompaniet ECI-3. It's rated at 70wpc and can be found for $1000 used or less. I used to own the Simaudio Moon I-5 also rated at 70wpc and the person I bought it from said the Kestrels sounded very good on it.
However, I owned both the ECI-3 and I-5 at the same time and was able to compare them extensively. In many ways the amps were surprisingly similar in my room, but I found the I-5 to have a lean tendency at times while the ECI-3 was easier to listen to for longer stretches.The Electrocompaniet had a fuller, warmer presentation than the Simaudio and that was more to my liking.
I hope this helps. Good luck.
However, I owned both the ECI-3 and I-5 at the same time and was able to compare them extensively. In many ways the amps were surprisingly similar in my room, but I found the I-5 to have a lean tendency at times while the ECI-3 was easier to listen to for longer stretches.The Electrocompaniet had a fuller, warmer presentation than the Simaudio and that was more to my liking.
I hope this helps. Good luck.