hypex nilai

Hey everyone, I recently upgraded to the Wharfedale EVO 5.4 speakers, and while I like what I hear, I’m not entirely convinced I’m getting the best out of them with my current setup. Right now I’m running them with a pair of Fosi V3 mono amps, and a WiiM Ultra as DAC/streamer. The Fosi V3s...

Hi everyone, Can someone explain how the gain is implemented in the Nilai power amplifiers? The amplifier has built-in preamp providing three levels of gain (12, 22 and 28 dB). You can adjust it using a switch. But HOW is this sensitivitylevel built in? Thanks for explaining me