I have two PM-94s, listen almost exclusively to classical music and I don't think I will ever part with them. A few years ago, some capacitors on my Levinson 333 went so I substituted a 94 while the Levinson was being repaired. I was really impressed on how well the 94 performed.
That said, there is a problem with these amps. They run hot, and repeated thermal cycling over many years and insufficient solder causes them to blow their output transistors. I know of at least four 94s where this has occurred among my circle (we all bought them when Dynascan sold Marantz USA to Philips). The amp developing hum in the speakers is a warning sign. Repair with matched output transistors is expensive. In my case, I was lucky not to be the first one to blow the outputs and had preventative maintenance done where they essentially resoldered all of the boards. I have not had a problem and have used them for 14 years. So I recommend the amp for sonics and flexibility, but you best check on it's history and have the boards resoldered if you purchase one.
That said, there is a problem with these amps. They run hot, and repeated thermal cycling over many years and insufficient solder causes them to blow their output transistors. I know of at least four 94s where this has occurred among my circle (we all bought them when Dynascan sold Marantz USA to Philips). The amp developing hum in the speakers is a warning sign. Repair with matched output transistors is expensive. In my case, I was lucky not to be the first one to blow the outputs and had preventative maintenance done where they essentially resoldered all of the boards. I have not had a problem and have used them for 14 years. So I recommend the amp for sonics and flexibility, but you best check on it's history and have the boards resoldered if you purchase one.