I was VERY happy with the speaker quality on the original ZMAX. The speaker on this phone isn't bad... but it is nowhere as good as the original ZMAX. I can imagine that if you're only familiar with cheaper phones and their speakers you'll think the ZMAX PRO is great, but coming from the original ZMAX it's a let down. I have tried different settings in the DOLBY app but nothing really boosts the sound. Anyone know of any apps that can overdrive a phone speaker?