subwoofer or stereo wireless transmitter by Dynasty ProAudio WSA-5TR-V2

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Dynasty ProAudio WSA-5TR-V2: amzn.to/4balnGU
I didn't like running a 45' foot length RCA cable across the room because
1) signal gets weaker the longer the cable
2) using a female-to-female extender to connect two RCA cables (30' + 15')
3) long RCA cable length may pick up noise
4) I want a cleaner look with fewer wires
I've also tried not line-of-sight by moving the transmitter to behind the bookshelf, and the receiver behind the subwoofer, and I did not hear any degradation.
CON: I listen to music and watch movies in the dark (I have a projector).
The LED light is bright so I covered it with a dark sticker but then the white body now glows.
I would have preferred that the unit came in black.
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- I am running 6 amps that you can see but if I include the 3 subwoofers with their builtin amps then that makes it 9. This weekend I'm getting another sub with builtin amp which brings the count to 10 for a 7.4.4 setup.
My audio chain: Apple music lossless ~~ Verizon 5G wireless ~~ Eversolo DMP-A6 via usb ~~ Denafrips Iris 12th (ddc) via I2S ~~ Denafrips Ares II 12th (dac) via rca ~~Parasound zpre3 via rca ~~2 Parasound 2125 amps each powering only 1 speaker like 2 monoblock amps ~~ 2 Goldenear BRX speakers (amt ribbon tweeter) and 2 sealed subwoofers (each has 1500 watts, 14 hz-200 hz)
interconnect rca cables by Worlds Best Cable using Mogami wire 2549 and Neutrik connectors.