Seeking opinions about phono specific interconnects

This one is most tempting, flat bypass; 4 memories; spectrum analyzer, tape loops.

I would still buy/keep/return the NEW Rockwell.

originally came with both a MIC, and Remote Control, you would need to confirm with seller, they might not even be aware of those.

@mwh777 

Try the bluejeans phono cables. Excellent and inexpensive. No brainer to see if it will make a positive difference for you.

Hello, 

Before you start buying equipment and cables why don’t you just adjust the VTA/SRA and / or do the most simple adjustment of the VTF (cartridge weight) you will be so surprised how much you can change the sound. My personal recommendation would be pay a professional like ttsetup.com to make sure your cartridge is setup properly. Also, Now that the weather might be changing where you live you might want to check and see if your turntable is level. The easiest/ cheapest way is buy a ball bearing and put it on the platter. Adjust until it doesn’t move. If you do not have feet that can adjust use playing cards and sheets of paper. I hope this helped. 

OP's Hearing Problem will not be relieved by refining VTA, .....

"I'll add that I am exceptionally sensitive to higher frequencies due to having Hyperacusis"

Equalizer Inputs/Outputs: check,

Some, like the Rockville have XLR and/or MIC jacks, no RCA. for those, XLR/RCA adapters can be used

Others, Like the BSR have RCA in/out