My Arrow's battery has finally started going bad, it periodically turns itself off even when directly connected to my laptop (it works again for a while after I turn it off and back on). Does anyone who owns one have any experience or have a guide on replacing the internal battery?

Looking for recommendations for a hi-end headphone that is warm sounding rather than analytical. Something smooth with an impactful bass. I'm not looking for a bass cannon, but I would like to feel the bass (impact? punchy?) without it overwhelming or bleeding into the mids. Budget probably...

Hi, does the TTVJ portable have enough juice to drive the HD650?