- Nov 9, 2005
I recently purchased an Antique Sound HB1 Headphone Amp for about $250. It is a hybrid amp with two tubes, and I am exploring the tube mystique. So I plug my iPod into it and listen with Grado headphones (SR80 and RS1). At first it sounded bad, but I was told to let the tubes 'settle' or 'burn in'. They did get better after a while. Now the problem is that it doesn't seem to be amplifying! It sounds the same whether I plug by headphones into the HB1 or directly into the iPod. Can anybody explain this mystery? By the way, the volume control on the HB1 does work, so I know there is not just a wire from input to output. Also, I have the volume all the way up, of course. Does your HB1 definitely amplify? Does it give a clearly noticeable "tube" sound not provided by your source? Thanks.