Maybe I should contact Headroom directly, but my old Total Bithead seems to be gradually failing. It used to be that, connected to my macbook pro via USB, I only had to put the volume up a certain amount for comfortable listening. Recently, I have had to put the control higher and higher - lately, I actually put it on maximum for some songs. No, I'm not going deaf; my other devices are still set to the same level as always.
Is this typical? Do portable amps have such a limited (~5 years) usable life? It's driving my Senn HD650 btw.