I've been thinking about building this little Altoid tin headphone amp kit for listening with my Sennheiser 555s. Granted, the point of building the kit is, well, building the kit--but given the limitations of a (cheap) kit-built design and the fact that I listen exclusively to mp3s on my iPhone or Mac, will there be a perceptible improvement in sound from the cans? Is there more to the sound of my mp3s that I might not be hearing just driving the Sennheisers with the juice from the iPhone's or Mac's headphone jack that would merit stepping up the signal with the little amp?
I'm preparing to revamp my digital music library, including re-encoding a lot of high-bitrate OGG tracks as MP3 to increase portability and cut down on file size. What are the best LAME encoder settings to maximize appreciable quality for the future without taking up too much space? [more inside]
Help me pick a decent medium-size HDTV. [more inside]
Any studies showing improved audio quality affecting perceived video quality? [more inside]
Has anyone had any success doing radio-quality interviews with Skype or Vonage? [more inside]
Do you think that 128kbps AAC files are good enough? [more inside]