The Pulsar 2 in particular is so well crafted with excellent build quality. SQ is so mellow and composed & can handle most any genre of source material without causing a fuss.
Marten Duke 2 has a glorious midrange and correctly needs proper amp selection to attain an integrated full range sound. From my listening tests, Luxman and Macintosh seem to pair well with the Duke 2.
Already striking the Rotel amp combo with most any choice of speaker going forward. As overall SQ and not to mention build quality ( take a look at those side panels , enough said ) are quite mediocre.