I can offer a tiny bit of input. I used a Dynavector XXX2MK2 and a Benz Mirco Glider L2 both with a Jfet 'head amp' Amplifier (battery powered) and a Hashimoto HM-7 Step Up.
Now the differences were there, the Hashimoto having slightly more texture and subtle detail over the frequencies. I have to say it wasn't night and day between the Head Amp and the SUT but it was quite noticeable.
I guess thats what we are talking about at this stage of the game, the incremental differences with different equipment. I always have a slight issue with hifi lingo, articulating the differences I hear is not easy.
But it came down to what I preferred, nothing else. It would have made me financially happier if the Jfet head amp had beat or was on the same level as the Hashimoto Step Up as there was £800 to be gained from
the hHead amp being as good.
Alas it was not. But lets get it right, the £175 (at the time) jet Head amp gave a very very good presentation and was incredibly enjoyable. £800 difference, probably not, but who can put a price on the increments in sound quality. I did offer this advice at the beginning of this thread but was shot down in flames for daring to add the Jfet amplifier to the mix, when SUT advice was being asked for..
But it would make perfect sense that this little thing can give great performance on a modest outlay. If your purse is larger and the fancy takes you, then the higher end SUT route is the way to go, if you want a 'slightly' lower level performance and save some dosh then go the other route.
My initial review is in the link below, for what it's worth.
btw I have no commercial interest with AD Audio
http://theartofsound.net/forum/showt...t-MC-amplifier