Dear OP,
Even though English is not my mother tongue, I do believe my couple previous posts were quite easily understandable. I'm with Raul on this: you're either unable or not willing to understand what people are telling you. I will completely disregard cart/tonearm/phono synergy and compatibility issues and give you the most honest answer that I can, having myself bought and/or experienced a variety of cartridges ranging from U$200,00 to U$10,000: YES, IT MAKES A LOT OF DIFFERENCE and the upgrades are not subtle, but rather like "I CANNOT live without this improvement". I wanted to believe that there's no difference between a thousand dollars cartridge and a four thousand dollars cartridge, but I know for a fact that the improvement is quite shocking and I learned that when I upgraded from a Dynavector Karat D3 to a Transfiguration Phoenix S. So much so that I couldn't stop there. It is not a scam and that setup you heard would have performed A LOT better with an analog front-end costing as much as the TAD speakers.
Best,
Luiz