Luxman MT-88 Step up transformer pairing

I was hoping for some insight as for the life of me have not been able to find any reviews or comparisons of the Luxman MT-88 SUT.

2 questions:
Do I need one (an SUT)
If so is the MT-88 a good pairing for the L-505ux and Clearaudio "Concept MC" cartridge?

Any help would be so greatly appreciated for this newbie.

Integrated amp = Luxman L-505ux
SPECS-Input Sensitivity / ImpedancePhono (MM): 2.5mV / 47KΩ, PHONO (MC): 0.3mV / 100Ω, LINE: 180mV / 47KΩ
S/N ratio (IHF-A)PHONO (MM): 91dB or more PHONO (MC): 75dB or more.
From reviews: "The MM input has approx. 35dB of gain. While the MC input has 55dB of gain We recommend MC cartridges with an output >.7mV. Lower than that you might consider using the MT-88 moving coil step-up transformer."

My cartridge = Clearaudio Concept MC (

Cartridge weight: 8.0 gram

Stylus shape: Micro Line

Cantilever: Boron

Coil material: OFC - copper

Compliance: 9/9 µ/mN

Recommended tracking force: 2.0 gram (+/- 0.2 gram)

Crosstalk: > 30 dB

Channel difference: < 0.5 dB

Output voltage: 0.42 mV at 5 cm/s

Cartridge Impedance: 11 Ohms

Cartridge body: Aluminium-Magnesium alloy with ceramic surface layer

From a reviewer of the Concept on hifishark says ""The recommended cart loading is 100ohms however; I did try 121 and 150ohms on a Phonomena II. I found that on my system, the 150ohm loading was quite optimal; at least in initial sessions.
https://www.audioshark.org/cartridges-144/clearaudio-concept-mc-cartridge-review-1535.html