KLH model nine full range speakers

Anyway I prefer tubes than solid state If I have a choice.The owner of this KLH where I bought them. He is using Marantz tube amp .

I trust you know that David at JansZen Audio continues to make repairs on the Nines (his father's design) if ever needed.

Also, he might provide a list of recommended amps.

Pryso I met David at axpona. He was using Agd tube amp of Alberto from California.

Pryso I think some KLH owner use Benchmark 100 w.

I have a pair of KLH Nines. You don't need much power. The difference between 40 watts and 60 watts is miniscule. You say the original owner was using a Marantz tube amp? The 8B? That amp is 35wpc. Doubling the power in watts to 70 will only give you a 3db increase in volume. 

The last amp I used with my Nines was the Carver Receiver - 135wpc. Bass impact was enough to shake the floor!

Jasonbourne71 thank you.