I have been using a VTL ST-150 with the same tubes for almost two years now without a hitch. Not to say I couldn't have issues tomorrow, but it has been very reliable.
That said, it is one of the best sounding amplifiers I have owned. And there have been many. I have never heard any Aranov gear, but it certainly looks well made.
Unless your speakers are very inefficient, I would be less concerned with the power rating and more concerned with the quality of sound. And that bar is pretty high with any VTL and Manley gear that I have heard.
Shakey
That said, it is one of the best sounding amplifiers I have owned. And there have been many. I have never heard any Aranov gear, but it certainly looks well made.
Unless your speakers are very inefficient, I would be less concerned with the power rating and more concerned with the quality of sound. And that bar is pretty high with any VTL and Manley gear that I have heard.
Shakey