I got my 1st MC cartridge not long ago, and after research and advice here, went with this one:
https://www.ebay.com/itm/164633673789?hash=item2654ee803d:g:WLUAAOSwcnVf-M6S
they are getting expensive, and harder to find
a. PASS lets you use it for a MM or MC High Output thru it, bypassing the transformer
b. 3 inputs, front selectable, then off to a single MM Input.
c. 4 optional x-factors/impedance loads, for my first, and future MC cartridges
(front switchable, not rear or internal dip switch changes).
...........................................................
This model, FRT-5, has 3 inputs, PASS, and it’s Transformer is designed for MC cartridges in a range of 3 to 10 ohms
https://www.ebay.com/itm/334079978776?hash=item4dc8b7ed18:g:iNcAAOSwPNpg8nR7
...................................
Entre ET-100; 3 inputs, PASS, 3 Optional Loads, front switch
https://www.ebay.com/itm/393529405956?_trkparms=ispr%3D1&hash=item5ba02e3204:g:XHcAAOSwHmlhJMuD&...
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Denon, 2 inputs, PASS, 2 optional loads
https://www.ebay.com/itm/393583791431?hash=item5ba36c0d47:g:jrAAAOSwug5hR7ZR
https://www.ebay.com/itm/164633673789?hash=item2654ee803d:g:WLUAAOSwcnVf-M6S
they are getting expensive, and harder to find
a. PASS lets you use it for a MM or MC High Output thru it, bypassing the transformer
b. 3 inputs, front selectable, then off to a single MM Input.
c. 4 optional x-factors/impedance loads, for my first, and future MC cartridges
(front switchable, not rear or internal dip switch changes).
...........................................................
This model, FRT-5, has 3 inputs, PASS, and it’s Transformer is designed for MC cartridges in a range of 3 to 10 ohms
https://www.ebay.com/itm/334079978776?hash=item4dc8b7ed18:g:iNcAAOSwPNpg8nR7
...................................
Entre ET-100; 3 inputs, PASS, 3 Optional Loads, front switch
https://www.ebay.com/itm/393529405956?_trkparms=ispr%3D1&hash=item5ba02e3204:g:XHcAAOSwHmlhJMuD&...
..................................
Denon, 2 inputs, PASS, 2 optional loads
https://www.ebay.com/itm/393583791431?hash=item5ba36c0d47:g:jrAAAOSwug5hR7ZR