PSA: Just a balancing comment that many network engineers and others who understand packet based communications believe that these network enhancing devices do not have any effect on sound quality.
And if there is any "dirt" in a signal there are far less expensive ways to address that theoretical possibility - i.e. fiber.
Not here to debate, just to notify those starting out in audio that these devices are, if anything, well less of a priority than quality base components like preamp, amp, speakers, DAC...