u/Mundane_Version_2531

Hi all
I am looking for a way to strream my whole (not single apps such as spotify and so on) audio output from my laptop to wiim amp ultra WIRELESSLY

The best solution I could find would be:

1. USBC-to-optical cable
   https://www.amazon.it/Cubilux-Convertitore-Unidirezionale-Trasmettitore-Compatibile/dp/B0FNCP7FMH/ref=cm_cr_arp_d_product_top?ie=UTF8
2. low-latency Wifi stremer-receiver kit
   http://amazon.it/gp/product/B0DXF7LZ6Z/ref=ewc_pr_img_3?smid=A10X1QYUE1NRPT&psc=1
3. optical-to-optical cable from the receiver to wiim amp ultra
   https://www.amazon.it/gp/product/B00L3KO5WK/ref=ewc_pr_img_1?smid=A11IL2PNWYJU7H&psc=1

to keep the audio as digital as possible before entering the amp in order to avoid losses
The problem is that that would cost me >100 bucks

Bluetooth performance has been laggy and it is also reducing audio quality

Is there any other solution I am missing?
Thanks for sharing your solutions