What Speakers are avail Similar to Nola Contender

I am seeking the best speaker for use with 40 watts tube power (Primaluna 5). In terms of sensitivity, efficiency and size the Nola contender would be a good match. I would like to know based on others experience what they may think or know would compare to or better the Nola in the up to $5,500 price range. I had an interest in the PSB Synchrony but due to their 89DB and 4ohms it appears you need a good 100 watts to play them at their potential. I currently have the Triangle Celius ESW. After an attempt to replace them with Vienna Acoustics (Mozart Baby Grand) I ended up hanging on to the Triangles. I am not sure how I would like the Nolas compared to the triangles, but I am close enough to a Nola Dealer to check them out. Would be grateful for any suggestions

Thank You
Brad