[PROBLEM] Adjust the input level to the loudspeaker

[lissid514]

Even the little IQAudio Headamp Zero can go b***** loud through headphones if one has got the Max Volume Control set too high - or as I did once, Disabled!

The last time my poor ears were assaulted like that was Black Sabbath at Portsmouth Guildhall, back in the '70s. 

For me it is the case that as I get older, hearing doesn't get any better