I cannot comment about the specific model you've mentioned, as I've never owned it. Below are comment's on what I've owned and hopefully they may be of some help to you:
My first step from a common receiver to separates was first a used McIntosh, than a brand new unit. I do not remember the model numbers of the amp and preamp. At that time, for speakers I've owned B&W 802 series 3. After few months I've stepped up to CJ Premiere, because of sonic preference. After couple of years to Thor Audio. Regretfully, having issues with tubes made me sell them and return to solid state.
Luxman 600 series amp and preamp were my first Luxman components. I liked them so much, I've stepped up to their 900 series after about a year. I've added more Luxman. products later. I have not found the sound lean as one of the entries noted. It is all about the system as a whole. SYNERGY is key. In my case, Luxman electronics, Focal Sopra Speakers, Shunyata Sigma 2 cables are a good match.
Be well,
vic