I used MacBook Pro with JRiver for years with no hiccups. Am curious what you mean by "losing the proper MIDI setting", MIDI shouldn't enter into it unless you are trying to configure it to play .midi extension files. But I don't know all the ins and outs of JRiver so am willing to become better informed.
That being said, I solved my storage issue by getting a 1TB SATA SSD and a SATA to USB cable and simply plugging that in to the MacBook. 2TB Samsung SSDs are under $200 at this point.
This allowed me to more easily manage files because it was portable, I didn't have to setup a full NAS or deal with home network challenges.
If you are generally happy with the MacBook / JRiver combo, I say keep it. I moved on because I dropped my MacBook and wasn't interested in replacing it. After considering most of the down market dedicated server options, I decided to just go with an old phone that had a memory card slot and use JRiver Mobile, via USB to my DAC.
Good luck.
That being said, I solved my storage issue by getting a 1TB SATA SSD and a SATA to USB cable and simply plugging that in to the MacBook. 2TB Samsung SSDs are under $200 at this point.
This allowed me to more easily manage files because it was portable, I didn't have to setup a full NAS or deal with home network challenges.
If you are generally happy with the MacBook / JRiver combo, I say keep it. I moved on because I dropped my MacBook and wasn't interested in replacing it. After considering most of the down market dedicated server options, I decided to just go with an old phone that had a memory card slot and use JRiver Mobile, via USB to my DAC.
Good luck.