Transformer stepup size


Does size matter in stepups, ie is there a correlation between magnetics size and sound quality? I notice higher price units (the legendary SU-1, AN or S&B) are a lot bigger than say the Lundhal (diminutive) size. What has been your experience?
divo

Showing 7 responses by rauliruegas

Dear Divo: I think that you are like many people ( like me ) that always are trying to find the best analog sound reproduction quality. The most important issue about a stepup-transformers is not the size of it or the quality sound of it, for the anolog music lover the most importantt issue is: NEVER USE A STEPUP TRANSFORMER, always use a preamp with a built-in high gain ( for low output moving coil cartridges ) phono stage. When you use a SUT the critical signal from your low output cartridges has to go trough additionals connectors and interconnect cables that degraded the signal, and not only this the signal degraded too because has to go trough severals meters of wire ( transformers ) inside the SUT. So, the best SUT is NO SUT. This is a fact and you can probe it: her the same signal trough a SUT and trough a preamp with a buil-in phono stage and you will hear the BIG difference.
Don't take my word for sure, do this test: hear it.
Regards and enjoy the music.
Raul.
Dear Divo: The number of turns in a stepup transformer it's a very important issue. In the same conditions: design, execution of that design, same preamp,..etc. You must to go for the " bigger one ", this one has a better frecuency response speciality on the bass reproduction.
Regards and enjoy the music.
Raul.
This Sonic Frontiers phono stage it's a unit that appear in the years 92/93 in two models: your friend one an a signature model, I thing that the price was around 1,000.00 and 1,800.00 for the signature. Your friend model is a hybrid one and is a moderate gain ( not high-gain ) and a little noisy product. For today standards it is at the bottom end of a mid-fi product.
Regards.
Raul.
Dear friends: Over the time I use severals stepup transformers and head-amps: Ortofon T 2000 and T 5000, Audio Technica AT 1000T, Classe NIL 3, Denon, Expressive Technologies, Klyne, etc... and in that times I always think that this was the best way to hear the reproduction of a low output moving coil cartridge ( for many years ). Then I discovery the Dennesen JC 80 and the Vendetta Research ( high gain phono stages ) and my audio/music/reproduction/life change for a better understanding of what is what we are loosing in the music reproduction at home an understand that before an audiophile I'm a music lover ( it's very dificult to tell where are the limits of these two adjectives ). Since then I always are looking for the " straight line " in the audio reproduction, looking for the products that degraded less the audio signal. We receive through a LP, CD, SACD or DVDA a signal that comes heavy degraded for all the many previous steps where the signal has to pass before we can put on our front end and do the reproduction. I think that if all of us loves music, we have a minum obligation that is: " that the signal suffer the less posible degradation ". The SUT goes against this. Maybe, for many people the SUT is the only way to go. I explain this:
Like Marakanetz and S23chang told us a high gain phono stage is a challenge and very expensive but set you back what we are looking for : " real signal music reproduction " and believe me there it is the only way to get closer to the music.
The experience that speaks Kehut has a simple explanation: for to do a good audio reproduction of a MC cartridge of 0.26mV we need at least 60db of gain that the PH3 does not have it and that is why he hear that differences through the SUT that put the gain for the correct signal reproduction. It is not that the SUT sound better than the PH3 it is only that put the necesary gain for the reproduction, something that the PH3 can't do it.BTW, Doug what is the high gain friend's phono stage?
Recomendations: Burmester, Boulder, FM Acoustics, Classe, gryphon, CTC Blowtorch, Rowland.

Regards and always enjoy the music.
Raul.
High Doug: If you can give us not only which was the high-gain phono stage but which cartridge and the used load impedance in that test. TKS.
Regards and enjoy the music.
Raul.
Oh yes I forgot these exellent phono preamps: Spectral, Klyne, Halcro, Pass, MBL. Somebody talk to me about Edge buy I never have the opportunity to listen it.
Raul.
Dear Doug: I re-read your posts in this Divo thread and your last post don't makes any sense to me other that: " looking for a fight " or " I'm right you are wrong ".
Those attitudes are loosing time for both of us and for other readers.
No, tks.
Regards and enjoy the music.
Raul.