well, all the youtoob shills are busy with vids on the JTM 20.
Headfirst did a comparison of the SV20 and Origin20 - very similar builds/parts IIRC as shown is his comparison video; and with his mods take the Origin to JCM 800 levels.
edit: here's the comparison video:
The Studio series are built in the UK with mostly Asian parts vs the Origin built in Vietnam with mostly Asian parts. At least the new JTM 20 combo got a 12" speaker where the SV20 and SC20 combos got a 10".
I decided to try the Origin 50C 1x12 combo, I can get JTM-45 to SLP like tones, with a boost you can get into JCM 800 territory IME. I liked it enough to get the 50H, and I'm not disappointed. Is it going to rival the real Marshalls? No, but for the price Origin works for me. It's a basic single channel amp the feels and sounds like an old Marshall at a very low price.
The Origins (20s and 50s) are flooding the used market so it's easy enough to get one cheap and try it IMO before dropping the $ on the Studio series. I planned to get the SV20 and/or SC20 but tried the Origin first because it was cheap and I though it sounded good in the demo vids / audio clips. Origin killed my GAS for the Studio series amps.
For the Origin, start with the MV at 8 or higher, and adjust the other controls from there.
My ears are probably shot tho, and my tinnitus is there too. But a used Origin 20H is in the price range of some pedals.
IMO