Power amp for Reference 3A speakers?

These are indeed nice speakers .

I have auditioned them with tube and SS amps . Because they were designed for tube amps , tubes naturally sounded better , during my auditions .

I have heard these with a 5w SET amp , it was not really enough power .

The best is highly subjective .

I would suggest that you look for something that is quite resolving with good extension on both ends and decent detail . These speakers will show you what is delivered from your upstream components . They are capable of delivering crisp , clean and airy highs while putting out bass that you can feel .

You did not list your musical preferences or a budget . If you are not clear on these subjects , I would suggest a Primaluna Prologue 2 tubed integrated amp . The Prologue 2 is inexspensive , will sound good and allow you to experiment with a myriad of tube types . Coupled with the Di Capo's , you will be able to easily differentiate between upstream components and different tube types allowing you to seek the sound that pleases you . If you are new to tubes , the Primaluna's are self/auto biasing making tube rolling much easier and hassle free .

Then go looking for an amp that will give you more of an area that the Prologue is lacking with a minimal change upstream . The Primaluna's should be quite easy to sell .

This is the path that I am taking now .

Good luck .

Not knowing your budget, I agree with Saki70's recommendation. By all accounts it is a fine amp and they tend to be easy to re-sell if you don't love it.

I drove my De Capos with Quicksilver Mini Mite Monos for several years. Sounded great. The Mini Mites can typically be found used for around $650/pr.

I hear jazz, classic and rock. My budget between 2000 and 3000 dollars. Thanks for your answears.