The right amp for the Serial Acoustic M4?

I have an opportunity to buy a pair of  Serial Acoustic M4's, but my current budget is limited regarding the ultimate amp I would like to pair with these speakers.
I currently have a Yamaha RS 700 receiver, and have a chance to buy a  used NAD 3020 amp.
Is the Yamaha or the 3020 sufficient to get me by until I am able to buy the type of amp that I know these speakers deserve?