SOTA has a long history, so you can often find great deals on used older models if you’re patient and willing to take on a bit of risk. I got started myself with a SOTA Star III sold locally on consignment - it was an AMAZING way to start. I think SOTA even sells refurbished units if you call them.
Between the Clearaudio-built Marantz and the Concept, I’d chose the Concept no question. It’s a proven winner (especially with a Satisfy arm upgrade instead of the magnetic bearing Concept arm) and it’s been built with Clearaudio’s more modern designs & tech. The Marantz was designed back in the days of their prior lineup, before the Concept and Innovation models.
As for the "most important part". That’s a tough one. I’d say once you have a reasonably good deck, the matching between cartridge and arm is most important. MC cartridges will tend to need heavier arms. Then phono stage, and its proper matching to your chosen arm, is also crucial. And depending on your room and table, you may need to spend some serious effort and/or money isolating the table. The SOTA models from the Sapphire on up take care of that for you (mostly) with the built-in suspensions. The Clearaudio models will not help you here - you’ll have to ensure they’re properly isolated.
I own both a SOTA and a Clearaudio.
Between the Clearaudio-built Marantz and the Concept, I’d chose the Concept no question. It’s a proven winner (especially with a Satisfy arm upgrade instead of the magnetic bearing Concept arm) and it’s been built with Clearaudio’s more modern designs & tech. The Marantz was designed back in the days of their prior lineup, before the Concept and Innovation models.
As for the "most important part". That’s a tough one. I’d say once you have a reasonably good deck, the matching between cartridge and arm is most important. MC cartridges will tend to need heavier arms. Then phono stage, and its proper matching to your chosen arm, is also crucial. And depending on your room and table, you may need to spend some serious effort and/or money isolating the table. The SOTA models from the Sapphire on up take care of that for you (mostly) with the built-in suspensions. The Clearaudio models will not help you here - you’ll have to ensure they’re properly isolated.
I own both a SOTA and a Clearaudio.