Stereo Out! UVK5 + Expansion?

Stereo Out! UVK5 £1 - £1.89
But the question is! do these expansion upgrade boards offer any extra bass and signal to the FM band? Linked below. 👇

https://nl.aliexpress.com/item/1005006189850969.html?spm=a2g0n.productlist.0.0.6d1e481fCxeE6N&browser_id=7009531c0b0f4a8e8b693648c1909a08&aff_platform=msite&m_page_id=epniglhosccavkna195614dba1924e897ca7e56e90&gclid=&pdp_ext_f=%7B%22order%22%3A%22146%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21EUR%215.69%210.97%21%21%2142.52%217.27%21%40%2112000036198199931%21sea%21NL%210%21ABX&algo_pvid=f449f57d-1faa-4189-9bb7-79dd5e96a5f3

and...

https://nl.aliexpress.com/item/1005007805808983.html?spm=a2g0n.productlist.0.0.461b66faVx8I70&browser_id=7009531c0b0f4a8e8b693648c1909a08&aff_platform=msite&m_page_id=epniglhosccavkna195614f894ed6f700db1eb2c12&gclid=&pdp_ext_f=%7B%22order%22%3A%226%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21EUR%2118.19%2118.19%21%21%21135.85%21135.85%21%40%2112000042263282391%21sea%21NL%210%21ABX&algo_pvid=707d478e-f649-4b5b-ad62-120f6bbd1f6f

it is suitable for quansheng k5/quansheng k6 to install s14732 softboard fpc and change hf shortwave full-band reception/single sideband reception. it is suitable for single antenna and dual antenna.

upgrade content:

1. Add an RF amplifier to improve AM reception performance.

2. Add an audio amplifier to solve the problem of extremely low volume SSB single sideband, and the effect is obvious.

3. Redesign FM and HF bandpass filters,

4. An ESD tube is added to the input terminal for electrostatic protection and strong signal protection when transmitting in the UV section of dual antennas.

5. Use FPC soft