Every system has limitations. Generally you want those limitations to be defined by the piece of the system that cost the most, and that has the largest influence on how the system performs. You don’t want any of the other pieces—the ones that are cheaper and less important—to be the ones defining your limitations and preventing the most important piece (the set of speakers) from reaching its potential.
For example, if you got rid of the Yamaha amp and you replaced it with this… then the amp would be your limiting factor. The speakers would not be reaching their potential because they’re so inadequately powered. That’s bad.
Or if you got rid of the turntable and the stylus upgrade and you replaced them with this… then the turntable would be the limiting factor. The speakers would not be reaching their potential because the signal they’re being fed would sound horrible. That’s bad.
So your speakers being your limiting factor is A GOOD THING. You don’t want anything else in the chain to be preventing you from getting the most out of your speakers, and therefore the most out of your money.
Understand?
Don’t get hung up on the term “bottleneck”. People use that term across all nerdy/techy subreddits (but mostly on PC building ones so I assume you’re coming from there), and nobody has any clue what it means. There is ALWAYS a bottleneck, in ANY system where different parts are working together to execute some complex task. There is no magical combination of parts that will suddenly create a limitless car with nothing holding back its performance, that can go infinite miles per hour on zero gas… or a limitless computer that gives you infinite frames per second on zero watts… or a limitless stereo that rips open the space-time continuum and places 25-year-old Neil Young into your living room.
You want the “bottleneck” of a car to be the engine. You want the “bottleneck” of a 3D gaming computer to be the graphics processor. And you want the “bottleneck” of a stereo to be the speakers.
these two are my personal favs
Victrola Wood Metropolitan Mid Century Modern Bluetooth Record Player with 3-Speed Turntable and Radio https://www.amazon.com/dp/B07G237HMN/ref=cm_sw_r_cp_api_i_TK5gEbCZ1AWMY
Victrola All-in-1 Bluetooth Record Player with Built in Speakers and 3-Speed Turntable Black (VTA-65-BLK) https://www.amazon.com/dp/B07G1XW9MP/ref=cm_sw_r_cp_api_i_qL5gEbTHDC4E6