@e83cc & @andyr,
Thank you for your expert suggestions. Yesterday, I borrowed two different SUTs from my audiophile friends. One is the rothwell MC-1 - https://www.analogueseduction.net/phono-stages-phono-boards/rothwell-moving-coil-step-up-transformer.html, and the second is intactaudio - https://intactaudio.com/tran.html.
I wanted to share my experience. First, I tried the intactaudio 2-box SUTs. I connected the output from the SUT to the MM connection on the phono stage and tried different cartridge loading settings. There was no significant gain in the output. I had to increase the volume considerably on my preamplifier to reach the optimal listening level. Next, I connected it to the MC input on the phono stage, resulting in a 50% improvement in gain. I had to reduce the volume by half on the preamplifier. The bass was deep, highs extended, but there was excessive loudness making it unsuitable for prolonged listening.
Next was the Rothwell MC-1 SUT. This time, I connected the SUT output directly to the MC input of the phono stage. I only needed to increase the volume by another 5-7% compared to the Intactaudio SUT. However, the sound quality was truly excellent. Everything was presented in a smoother manner. There was no overpowering loudness. You could listen for long sessions without experiencing fatigue.
I believe a solid tube phono stage is the optimal choice for low output MC cartridges. I have limited exposure to high-quality solid-state phono stages. Experts here can provide further insight based on their experiences.
Require your expert opinion on Rothwell MCL - https://www.analogueseduction.net/phono-stages-phono-boards/rothwell-mcl-moving-coil-step-up-transformer.html
I believe this will address my needs.
I noticed two ads in the classifieds and thought they could bring a valuable experience to my setup. I would appreciate your guidance.