This has always puzzled me.....why is it on some stereo receivers, turning the volume up lowers the dB level displayed? Like, very quiet on my receiver is 70 dB where pretty loud is 30 dB. Shouldn't it be the other way around?
If you look closely, you'll see that they're negative numbers. They're just in relation to some reference level, which is like a direct connection to the amp. Attenuating the signal makes it quieter and sends the "volume" into "negative" territory.
I know doesn't that bother you? I seriously can't see the reasoning behind it. And whats with the whole -80db is silent, but 0db is loud as hell? I can't stand that. Someone please answer 🙂
Edit: cowboy answered my ? but i typed this b4 he posted 😀
If you look closely, you'll see that they're negative numbers. They're just in relation to some reference level, which is like a direct connection to the amp. Attenuating the signal makes it quieter and sends the "volume" into "negative" territory.
It can get really confusing when you talk about attenuation in dB, since that is typically quoted as a positive number in dB, since you are expected to be subtracting that from your reference level. The greater the number then smaller the signal that gets through. However, the same number can be quoted as gain and would then be negative.