Step Up transformer

Your Cadenza Bronze is one of those cartridges which works extremely well with either an active MC gain stage or a SUT (I’ve tried both with this cart). You can really go either way depending on preference. If you’re looking for a huge change or improvement, then I’d say no, it’s not a cartridge that benefits as much from a SUT as some of the much lower output models (as noted by @mattmiller ) - unless you don’t love the sound of your existing MC stage. But MC stages themselves can vary a lot - for example the JFET MC stages in ARC Reference 3SE and Herron VTPH-2A fall sonically on the "lean & clean" / neutral side, whereas Hagerman’s Piccolo and Sonic Frontiers Phono 1 sound warmer / sweeter.

Many of us choose SUTs because of the more warm, weighty full-bodied sound and sweeter midrange many good SUTs render (but not all - for example, Lundahl LL1931 is not warm). However, the Cadenza Bronze in particular already carries *some* of these qualities by virtue of its warmer voicing in its line, probably due to the tapered aluminum cantilever. If you still want more of this, a SUT would be a good choice. May be hard to say until you try it :)

It you try a SUT then ~ 15x is ideal for that cart, but anything in the range of 10x to 20 will work great. Any CineMag SUT with the blue labels (Sky, 1254, 1131) is a pretty good quintessential SUT sound to try. Not a fan of the red-label 3440 - I don’t think this one is very good. Modwright is working on a new SUT box too, I believe with a custom CineMag blue.

If you moved to a Windfeld Ti with 0.2mV output, I'd say a good SUT helps a LOT there, to keep noise floor down and to inject some much needed warmth & body to that cart's sound. 

This is just my personal preference, but if I find that the sound from a good LOMC is too rich or too lean or whatever, to the point that I can’t tolerate it, my course of action would be to change either the cartridge or the phono, rather then to introduce a SUT as a bandaid for SQ. I’d use a SUT if I wanted to mate a suitable LOMC to a great MM phono stage. In other words, to increase total gain.

This is just my personal preference, but if I find that the sound from a good LOMC is too rich or too lean or whatever, to the point that I can’t tolerate it, my course of action would be to change either the cartridge or the phono, rather then to introduce a SUT as a bandaid for SQ. I’d use a SUT if I wanted to mate a suitable LOMC to a great MM phono stage. In other words, to increase total gain.

@lewm That’s the question for each of us - what constitutes "too far gone" in the sonic balance of a cart, and does this carry over beyond our personal perspective, or even our current downstream chain.

I’ve learned time and time again the upper line Ortofon MCs (Cadenza Bronze being the exception) are just too dry and lean for my tastes. Multiple downstreams, multiple phono stages, SUTs, tonearms etc - I just had to give it up. Then on the other side you have Koetsu: I’ve had some downstream configs where they’re just way way too damn warm and thick, echoing the common complaints of this line - and other downstreams where the result is just spectacular, untouched by any other combinations I’ve ever put together. When you "unlock" this, it’s magic. I’m glad I didn’t deny myself that joy just because they were way too damn warm in other contexts :)

Thanks Mulveling for your response.  I am happy with my Cadenza Bronze and my setup altogether,  Levinson no.526 preamp with class a phono stage, Levinson no.534 Amp, Revel speakers and Project Xpression10 turntable. We are all looking for the next tweak to improve our listening experience and hence my question on this forum. I heard SUTs can make an improvement,  but everyone has a different opinion.