Originally posted by ScottAvery:
Well it would be a problem if you lost headroom in the amp, right? 3db is half power? Or half amplitutde? how does that work?
A 3db loss in volume is just audible. Yes, if you cut the power by 3db, it is half the power. If you cut the VOLTAGE by 6db, it is half. A 10db change in volume is generally perceived by most people is being '1/2 as loud'. I would think the 3db lowering in gain was part of the 'fix' as this would contribute to a 3db lower noise floor if done in the output stage. It appears that the new units have a more drastic reduction in noise than what 3db would achieve however, so other steps were probably taken. In the end, just listen and enjoy, as the gain of a preamp has no bearing on your enjoyment, as long it is capable of driving your power amps to full output (and you out of the room). The only '3db of volume you are losing' at the top end, is what would probably be WAY into clipping of the power amp, not to mention your poor speakers, and your ears.
[This message has been edited by soundhound (edited September 12, 2002).]