Phono Stage upgrade to complement Dohmann Helix One Mk 2

@dover

I have to agree with you: measurements are only a guide. I am personally not convinced that we know enough about hearing to rely definitively on measurements. For instance, I have played several stringed instruments, and I have observed that when one string is played, it’s not just that string that vibrates and intonates sound, but you also get a minor vibration of any strings in that same note, usually one octave higher, which would be the second harmonic, if I’m not mistaken. Interestingly, this is the same harmonic that the Ypsilon Hyperions accentuate when pushed to the limit, which sounded very good (in fact, the best I have ever heard); however, the measurements demonstrate this as distortion.

@mijostyn

Yes, I’m sure the JC1+ are great amplifiers, but I doubt they could hold much to either the Lamm M2.2 (which, by the way, are also excellent amplifiers) or the Ypsilon Hyperion. If someone wants to ship me a pair to central Florida, I’l listen with an open mind and report back. . .

@rauliruegas

You are no doubt very knowledgeable, and probably know more about specifications and engineering than most people here. However, the data can only reveal what we currently measure. I think it’s important to consider that we don’t know enough about sound to know everything to measure or how to measure it fully. While analyzing data is definitely a strength of yours, I’m of the opinion that the data can sometimes be misleading, and incomplete, and listening to the Hyperions seems to confirm my opinion, despite Atkinson’s measurements.

Now, if anyone can recommend any other current-based phono stages, with two MC inputs, I’m all ears!

@lewm , I heard Hyperions on big Wilsons in comparison with Boulder 2150s. I preferred the Boulders. The two most popular amps with SoundLabs users are Atma-Sphere MA 2s and  JC 1s for whatever it is worth.

@drbond I have never heard or seen a Lamm amp so I can not comment but you are very wrong about the JC 1+. John Curl's point with the JC 1 was that he can make a top amp for much more reasonable money. I wish I could send you a pair. There is much more involved in the pricing of audio gear than the quality of the parts and engineering.  What is left has nothing to do with the sound quality of the equipment. John Curl has a record that is hard to ignor. People do not want to hear that an $18,000 amp is better engineered than their $90,000 amp. So be it. My personal goal is to get Atma-Shere MA 2's a $45,000 amp which due to their design are a perfect mate for Soundlabs speakers. I would love to get MA 3s but at $145,000 I would never get them by my wife. On the other hand with the price of propane we could use the extra heat next Winter:-)

@rauliruegas , my feelings exactly. I am going with whatever produces the best results. You should look into Channel D's Pure Vinyl program. It is a lot of fun. You can compare different versions of a recording and different equipment in the analog chain, cartridges and tonearms. Very enlightening.

Dear @drbond : " However, the data can only reveal what we currently measure. I think it’s important to consider that we don’t know enough about sound to know everything to measure or how to measure it fully. "

Yes, data is what we measure. What’s wrong with that? and yes till today does not exist measurement proccess that can tell us how an amp can sound but this fact does not means that today we can diminish measures like in the past like the corrupted AHEE teached to us.

J.Atkinson is not a simple mesurement gentleman he was an analog lover till 10-15 years ago when he learned about and left it, it’s a very well regarded reviewer and it’s one with a lot more honesty than other reviewers ( he can’t recomend the Hyperions when MF did it. What a difference ! ! ! ) and it’s a recording engineer.

It’s ovbious that any gentleman that spends 90K+ in an audio item be at defensive attitude against facts with not very good quality design in that audio item.

But this is not only about measurements but about common sense. Ypsilon likes transformers and almost all is transformer coupled and that fact means that the audio signal travel for those " hundreds " of meters of transformers wires that certainly damage that audio signal and I said common sense because almost a rule is that we connect the tonearm to the phono stage input with the shorter IC cable to let at minimum degradation signal issues and here we are speaking of 1m. now imagine if the audio signal must travel over " hundred " of wire meters. Higher distortions that you like and is fine with me.

Common sense tells not spend high K $$$ to achieve top quality level in the cartridge signal only for that valuable cartridge signal be destroyed in the next system links. That’s all and is up to you because in this thread all gentlemans already gave you a lot of choices many of them with out that " common sense ".

Btw, FR on the Hyperion against load speaker impedance . This is a fact not imagination or subjective:

Anyway, enough.

R.

Fremer is listening without measuring. Atkinson is measuring without critical listening. Thus they offer two entirely different perspectives. The reader needs to make up his own mind based on the total information.

This sidebar has nothing to do with phono stages.