@daveyf - my opinion is different versus the HK. I own them now along with many other vintage amps such as the HK XXs which are a level above many current SS amps today. While the JR was musical if it has issues a local tech would need to buy the modules to get it repaired. How do I know this? I repair all audio components besides manufacturing my own line of components. Your opinion matters also but my experience is simply different. Does not mean I don't think it is a good little amp, it is. I know the JR goes for $900 used but I usually find vintage gear at estate sales for a lot less.
Happy Listening