Originally Posted by viebroccoli
Did 4.0.4 increase the internal speaker, headphone speaker, or both? I'm primarily concerned with the headphone speaker, as I just bought a pair of good over the ear headphones and the volume output is disappointing. I've connected them to my computer and old iPod, and there was a noticeable difference. Looks like yet another reason to root!
It boosted volume all around so I'm assuming that it probably changed a setting that upped to level on the amplifier on the phone. It not an amazing amount, but its enough to make my Senheiser HD428's uncomfortably loud at full volume (then again, they aren't exactly headphones that are hard to drive).