Purchased the Ifi LAN iSilencer after multiple positive reviews on diverse audiophile forums. Installed it between my router and first network switch. This device really works! Expanded soundstage, better imaging, less mid/high frequency harshness and increase in bass resolution. Sounded great immediately after plugging it on my router.
Also tried it directly at the input of my streamer with same results. I have placed a second order for an additional unit.