The Oppo has a DAC, iOS support and BT audio streaming.
The mini is a Phonitor 2 without preamp section for power amps and/or active speaker
If you compare the "mini" and "2" specs (headphone amp) you can see that the data are the same.
6,3-mm TRS connector
Pin wiring: Tip = Left, Ring = Right, Sleeve = GND
Impedance: 0,18 Ω
Attenuation Factor: 180 @ 40Ohm
Frequency Range: 10 Hz to ›480 kHz ( -3 dB)
CMR: -106 dBu (at 1 kHz, 0dBu input level and unity gain)
Crosstalk at 1 kHz: -106 dB
THD&N at 1 kHz: 0,00091 %
At 0dBu input level and unity gain
Noise: Unweighted -101,12 dBu; A-weighted - 103,98 dBu, CCIR -95,02 dBu
Dynamic Range: 133,62 dB
Max. Output Power:
65m W (+20 dBm) at 1 kHz and 600 Ω connected impedance
560 mW (+20 dBm) at 1 kHz and 40 Ω connected impedance
Im also extremely interested in the mini, so I just talked to the SPL tec guy on the phone (Mr. Neu), since I live in Vienna I speak some kind of German ;-)
I dont think Ill be using any of the crosstalk features, so for normal listening he stated, that the mini is exactly the same circuit design and uses the somponents as the phonitor 2, except the mini has less cooling rips (is that what you call them). The only difference beeing that the mini would have a 6 db default gain (not sure I understood what he meant by that exactly). Given that I wouldnt be using it for critical monitoring, the mini clearely is the better option, since there is less in the signal path (he also confirmed).
He also confirmed what you already noted, that the phonitor 1 had a problem with low impendance phones (below 30 ohm), where one might have had a hiss sound.
In terms of the power rating he claimed that the phonitor 1 had a printing error in the specs and that the phonitor 2 (equally the mini) are in fact more powerful (even at 600 ohm), he also mentioned about how the 65 mW are meassured (at 0db?) at that number would be higher with other measurements - but I didnt get that part (my technical understanding is quite limited).
I will definitely get one to use it with me hd650, the w3000anv and posibly also the he400 (at leased Ill try the synergy on the later, otherwise Ill sell them), given the reviews of the phonitor 2, it seems like a tremendous bargain to me. I currently rnt he hd650 through a little dot tube amp and love them, hope the phonitor will not sound to clinical but I think its worth a shot.
@nonno: If things go as planned I might be able to bring a Phonitor 2 along to our next meet and hope to have the Mini with me at the end of April.
The Mini does include a circuit similar in function to the crossfeed on the Phonitor, but it skips the extensive adjustment controls, opting for simpler settings of type off/min/max.
What really intrigues me is the +/- 60V layout (shared by both of them), resulting in an enormous headroom. Can't wait...
Unless SPL have changed the amp alot I must admit I found the 650s sounded waaay better on the Burson Conductor. I have had an auditor 2.5yrs now
and I find it qiuite a dull amp. I know listening fatigue is more of an issue with the Burson though. But wow...up until it sets in audio bliss! So much PRat!
In my experience most things audio that did not impress me at first (in the sense of not being able to pinpoint interesting / weird traits of personality, not in the sense of 'bad') were really good and stayed for a long time. Studio gear fulfills that much better than many consumer-oriented devices, I think (plus I have a background in pro audio). So I have high hopes for the Phonitor 2...
But what do you mean by 'proper HD800 settings'?
OK, I've considered the crossfeed controls only with regard to simulating near field monitors and therefore did not bring them in connection with headphone specific tuning possibilities... which might to some degree be possible, but they should only affect the room feeling, not the tonality. But I'll have to wait for my unit to test that.
Laphroaig is a good one indeed... long time favourite of mine. Pairs well with most headphones.