Phono Stage upgrade to complement Dohmann Helix One Mk 2


Thanks to the recommendations from many users on this Audiogon blog, I think I was able to make a more informed purchase of a turntable, the Dohmann Helix One Mk 2.  I've really been enjoying the turntable for the past month!  

The next phase of my system now needs attention:  the phono stage.  Currently, I'm using a Manley Steelhead v2 running into an Ypsilon PST-100 Mk2 SE pre-amplifier (into Ypsilon Hyperion monoblocks, into Sound Lab M745PX electrostatic speakers). 

I've been told that I could really improve my system by upgrading the phono stage from the Manley Steelhead (although I've also been told that the Manley Steelhead is one of the best phono stages ever made).  
Interestingly, two of the top phono stages that I'm considering require a step-up transformer (SUT).  I'm not fully informed about any inherent advantages or disadvantages of using an SUT versus connecting directly to the phono stage itself.  

I suppose my current top two considerations for a phono stage are the Ypsilon VPS-100 and the EM/IA  LR Phono Corrector, both of which utilize an SUT.  I don't have a particular price range, but I find it hard to spend $100k on stereo components, so I'm probably looking in the $15k - $70k price range. 
Thanks. 

drbond

This thread that was supposed to be about top of the line phono stages has temporarily morphed into a thread about amplifiers. . .

@rauliruegas

Of course I was aware of the so-called "weakness" of the Ypsilon Hyperions before I bought them. Importantly, the distortion that is graphed in your picture is linear, and only at very high frequency. Distortion in musical instruments is also rather linear, so the amplifier seems well designed for music.  (Distortion in most solid state amplifiers, as I'm sure you're aware is dramatically geometric, and that's why solid state can sound so bad at the extremes.)

By your critique of transformers, it seems that you need to learn how transformers actually work.

I suppose a good summary of this last part of this discussion is that we don’t know as much as some people think that we know, and that includes engineers and doctors.

@drbond 

@lewm ​​​​@rauliruegas are always disagreeing over something or other - lol

if you must by tube try a Tron. Supremely musical. Graham Tricker makes some very fine valve gear (and i don't like valves). I think they have 2 inputs. I dont think they have adjustable curves though.

@drbond  : " most solid state amplifiers, as I'm sure you're aware is dramatically geometric, and that's why solid state can sound so bad at the extremes. "

I respect your opinion and maybe you are talking of SS electronics coming from the " old " times. TODAY what makes the differences for the better in SS over tube alternative are precisely the excellent wide and accurated frequency extremes ! ! !

along its very low noise and distortion levels with extremely low output impedance.  

R.