FIDELITY RESEARCH STEP-UP TRANSFORMERS

Dear @lohanimal  : "   I hope to get an FR7 cartridge... "

IMHO the qworst decision you can take speaking on cartridges because all the disadvantages that has cartridges with integrated headshells and especially the vintage ones you name it:

first than all the with the 7's you can't set up correctly any cartridge due that you can't have azimuth mechanism to do it and can't change the overhang and offset angle to take advantage of one of the Löfgren tonearm/cartridge kind of alignments.
In the other side the internal cartridge/headshell wires/connectors that are so important because is where the cartridge signalmust pass through are just that: vintage and with low quality.

At least AT cartridge integrated models as Technics headshell integrated ones came with azymuth and overhang adjustments not like the monolitic 7 type.

Of course is up to you because is your money and you decide what to do with.

Regards and enjoy the MUSIC NOT DISTORTIONS,
R.

@rauliruegas 
I hear what you say, but on the other hand many say the FR7f including the likes of @jcarr have commended it's unique design. Frankly - life's too short to not try one out. It's part of the reason that I am going to have a couple of multi-arm turntables.

That said how did you modify the Denon SUT? out of interest was it more transparent the other SUT's you used?

@lohanimal don’t get too hung up about the supposed problems with FR7 as presented - ad nauseam - by rauliruegas. He’s the ’odd one out’ around here concerning these cartridges.

Most forum members familiar with them love the way they make music. And when you use them together with the FR64/66 tonearms and observe Ikeda’s specified P2S distance, you get none of the alignment or set up problems.

You don’t have to take my or anybody’s word for it. You can buy the FR7 series without much risk. If you don’t like what they do, you will have no problem reselling them at no loss. As you say, life’s too short not to try.....

I agree with bukanona. XF-1 L is better than 4 or 5. As 
Raul mentioned many times the switches for extra impedances
mean extra soldering points and aluminum conductors. 
FR produced  also ''mid '' and ''high'' impedance transformers
despite the fact that all MC carts are low impedance  kinds.
Anyway one should check the output cable and if corroded 
exchange for a new one. There is also an ''silver kind'' but
pretty expensive and difficult to find. 
But one can get the excellent Denon AU-S1 (3 kg) for similar
price which can be used for low and high impedances.
Special for this transformer Denon made an very good MC
cart with modest price: DL-S1  

FR-7f and FR-7fz are great cartridges for sure, when you’re using them on FR-64s tonearm you don’t have to adjust azimuth if the arm mounted on flat surface as it should be.

I am not so concerned about silver phono cables, i have them too, but i like high quality copper phono cables.

SUT is oldschool classic solution for LOMC, but you can always try something new like CURRENT INJECTION phono stages. They are designed for low impedance cartridges, 47Labs Phono Cube is magical with my FR-7fz. This is a "current-injection" type o the PHONO STAGE.