2. vintage
  3. 160079-1425

Your thoughts on a phono step-up transformer?

I recently bought a vintage high-quality turntable, which included a vintage "Reference" moving coil cartridge. My preamp (an MFA Magus) has a quality moving magnet input. As a step-up, I'm using an inline Ortofon STM-72. I'm not unhappy with the sound, but I have to think that there is more to be heard. A megabuck step-up is probably not in my future but I can see a $1-2K investment if it results in even better, more transparent sound. I trust this audio community, and your individual experiences, to recommend either a step-up (preferable) or a complete phono stage for my system.
I'm inclined to buy pre-owned but I have been known to stretch for the right component.

I welcome your input.
Ag insider logo xs@2xtonykay
6 responses Add your response
teo_audio
2,197 posts
 
I've owned three MFA preamps in the past. two were the magus units. They work well with step up transformers.

No need to lose the qualities of tubes, with a transformer in play. The tube  dynamics would be thrown away if you went to any form of SS amplification, so it is advised to head toward using a transformer.
noromance's avatar
noromance
9,769 posts
 
The new PS Audio Stellar amp is worth a look.
SUT - Bob’s Devices Cinemag if you want warmth and Lundahl LL1931 from K&K for more clarity and transparency.
roberjerman
4,319 posts
 
I have and can recommend the Bellari MT502 SUT. Made here in the USA - $500. There is one now available on eBay for $350 + $11.44 shipping from California. Seller is "rbaudio925". It is certainly the sonic equal of SUT's costing 2X - 3X more!
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tonykay OP
1,301 posts
 
Thanks for sharing your thoughts and recommendations. I’ll give them some thought, and probably make a purchase in the very near future. The vintage MC cartridge I referenced in my posting is a Benz Micro Reference. If you have any further thoughts, feel free to share them.
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tonykay OP
1,301 posts
 
I'll retire this thread by saying that I finally settled on a brand new Denon AU-S1 step-up transformer. I bought it from The Music Room. They are very easy to deal with and I recommend them highly. The sound of the step-up was just what my system needed.
noromance's avatar
noromance
9,769 posts
 
Nice. Congrats.
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