Hi guys. I'm pretty new at this whole home theater system thing and was hoping someone could answer a few of my questions about volume.
1. What exactly is a negative decibel?
2. Why do I have to adjust the volume setting on the receiver from different sources to achieve the same volume?
3. Does is really matter how high you turn up the volume on the receiver without getting distortion? For example, when watching TV, I usually have the volume around -35 dB to -30 dB and it is plenty loud. But I have a few DVD's that I have to turn the volume up to around -20 dB and it really is still not loud enough. I took it up to -10 dB and it was getting pretty loud, but didn't want to go higher. This also happens with some other TV channels.
For some background, I have a Denon AVR-1905, Polk Rti4 fronts, and a PSW 10 sub. I don't have a center or surrounds yet. Thanks.