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What trans (SUT) for a Victor mc-5E cartridge?

Hello,

I have this cartridge (and this is my first experience with mc cart, I have never had any before) and I have a good MM amplifier
so I am looking for a step up transformer for this cart.
(https://audio-heritage.jp/VICTOR/etc/mc-5e.html)
It is said to be 30ohn cart. What should I get or look for in order
to get a proper match? I am looking at
1-denon au-340 (Though I can see there 40 ohm indication. Is it a big difference, incompatible? )
2-Fidelity Research FRT-4
3-Entre ET-100-2 I dont know the characteristics , will it suit or not?

4-Denon au-s1 but I dont know the characteristics either

But maybe there is smth much better for this cart? What would you suggest? Thank you
Serge

serge8
audioguy85's avatar
audioguy85
2,018 posts
 

The Jensen mc-2rr-L would match up to that cartridge if it is 30 ohm internal impedance. The Jensen presents a load of 430 ohms to the cartridge, listed in the specs. It is a great sut for $599. Made in the USA...Tavish uses Jensen derived transformers in the Adagio. The Jensen mc-2rr-L was generally designed with the venerable Denon 103 in mind. That cartridge has an internal impedance of 40 ohms.

 

http://www.jensen-transformers.com/product/mc-2rr-l/

https://positive-feedback.com/reviews/hardware-reviews/jensen-mc-2rr-iso-max-moving-coil-phono-cartridge-step-up-transformer/

jasonbourne52's avatar
jasonbourne52
2,863 posts
 

I speak from experience. I bought my first lomc and SUT back in 1977. A GAS Sleeping Beauty Super Elliptical (Coral B777) and a Cotter Verion P SUT (Jensen). $200 and $375. Before this I had two other cartridges: MicroAcoustics 2002E electret and a Dynavector 20B high output mc.

jasonbourne52's avatar
jasonbourne52
2,863 posts
 

Correction: in my second post the SUT in use with the Denon 103R is the model 320 - which has only one set of inputs. 

elliottbnewcombjr
5,528 posts
 

that cartridge has signal strength of 0.2mv and it's coil impedance is 30 ohms. 

for this, and future cartridges, you want a SUT with several adjustable gain settings, and several separately adjustable impedance. Pass for MM cartridges is very flexible. More than 1 input is a wonderful thing, I use all 3 of mine.

I have and love my Fidelity Research FRT-4, and Entre ET-100 is similar, 4 optional settings and PASS for MM.

However, the 4 optional settings: the gain and impedance are a fixed relationship to each other, impedance is not individually adjustable. You need fairly high gain, the higher the X factor, the lower the resultant impedance that will be shown to your MM phono input. 

guidance formula of 10x for your cartridge's 30 ohm impedance is 300 ohms impedance to be shown to a typical 47k phono input. up or down from that guidance. Far off: no harm, but frequency response will be effected.

Ag insider logo xs@2x
rauliruegas
13,101 posts
 

Dear @serge8  : Of the ones you named you can't go grong with either the Denon 340 or the Entré 100-2.

Both are not only very good SUTs but comes with gain and impedance different choices to mate with any cartridge including yours.

 

Regards and enjoy the MUSIC NOT DISTORTIONS,

R.

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