First off, let me say that since my last writing (<12 hrs) I have listened to no fewer than 12-14 LP sides. That makes for my longest vinyl listening session ever!
This tubed phono preamp combo with my table/arm/cart mentioned above sounded so good that I was compelled to play side after side - in a few cases the same one 3 times in a row (Jerry Garcia Band - The LP with Sugaree, Beatles Please Please Me [MFSL], original White Album, Rubber Soul, Revolver [both original rainbow label], and a few others. My conclusion, especially after finishing LP #2 of the white album, was that this phono preamp provides tremendous 'presence'. It is rich sounding, yet just lean enough (at least woth my glider) that fine articulation (i.e. of Weir's guitar licks and solos on side 1 of Garcia) was really good. The noise floor wasn't the lowest, but that could be due to most of my wires being a mess right now and other factors contributing to interference.
Now as for questions:
1) JD9 has its own power supply - no wall wart.
2) Adjustment of output and loading is done through a series of little dip switches accessed through a small window (usually covered with a very small stainless steel plate which you remove while power is off by screwing 2 small screws with ones fingers) on the unit's rear. The manual clearly indicates which combination is used for which scenario. There is one MM output setting and two MC settings (LO and High). Loading options are 100, 300, 1000, and 47Kohms plus it has 47 pfarad, 100 pfaradm 150, and 220 pfarads. These are all set through the dip switches. The Jolida 9D also has two sets of outputs on the rear - 'LOW - 200 Millivolt' and 'High - 1.8 volt'. The manual indicates that the former is use with 'preamplifier separates' and the latter is for 'output to integrated amps or line stage preamps'. I Used the 'Low' output and obtained satisfactory listening volume on my Bryston B60 integrated with the volume control below the halfway point. The only potential weakness of the Jolida I could glean so far - based purely on classic rock and a little jazz listening - was that macrodynamics weren't the best I;ve heard (micro- were great). This could easily be attributed to my medium output Glider's sonic character, the nature of tubes, and many other factors. After all, I'm only using the jr,'s stock platter and phono cable.
Should also mention that 95% of my listening (it was late night) was done with Sennheiser HD600/Cardas through the very good headphone stage of the Bryston B60 integrated. Cardas Cross were the interconnects between the Jolida and the integrated. I should mention that I've never auditioned any other phono preamp - let alone another tube preamp - save the Lehmann Black Cube.Hope this helps. The Jolida is on load until Saturday, so perhaps I'll drop a few more lines after I've done some classical listening. By that point it will be time to pack and ship the jr.! (Scoutmaster should be here by Thur or Fri of this week).