As for alternatives, there’s too many to list out there, depends on budget as well. I’ve been happy (although currently replacing it) with my MoFi studiophono, could look at the ultraphono as well. The different Lehmanns are quite good as well. But too many to choose from really.
I rather like Graham Slee phono stages. Compact, they are either dedicated to MM or MC . And you can access all price points , I use an Expression with a dedicated Graham Slee power stage
As for a power supply for a Stage Line , my temptation would be to leave alone and either sell it to somebody like 2nd Hand or retire it. The thing is that if you have a Stage Line , have you switched from Naim Classic and switched to Uniti?
I would warn against using any 3rd party PSU with Naim kit. At best, they will not performa as Naim intended, and at worst they may damage your connected equipment, and their use will void any Naim warranty. This is one reason why their mention or discussion is not allowed here.
No, nothing to do with “making money”. I think the i-Supply was discontinued because of ROHS restrictions. Demand was pretty small so it didn’t really justify an i-Supply2, what with cheap secondhand NAPSCs (Headline only) and Flatcaps of all kinds being widely available, as well as power AUX2 sockets on all the pre-amps.
It would, but the NAC112x itself would need to be powered, of course (either from Flatcap or a suitable power amp), so unless you’re looking to completely change from your Star, it’s not really a good option here.
Lets face it, a Naim phono stage simply doesn’t fit your needs here if you want to keep the cost and box count low. When I had an LP12 and Superuniti I chose a Rega Fono 2 for similar reasons, and it did a great job for £200.