flyingflatfour
Member
- Joined
- May 3, 2020
- Messages
- 52
- Likes
- 2
If I understand things correctly, in the world of cinema and home-cinema, the norm is that each speaker should be able to reproduce sound at a reference level of 85 dBC SPL at the main listening position, with a 20 dB headroom.
It follows that the power needed to reach that level can be determined by speaker sensitivity, distance from speaker to MLP and the associated attenuation, boundary gain etc.
My first question is: how exactly is speaker sensitivity measured? What type of signal is fed to the speaker? All I understand for now is that an 8 ohm speaker receives 1 W of power and the result is measured at 1m. BTW, what is the relationship between 2.83 V = 1W into 8 ohms since sometimes the sensitivity is given in dB/2.83V.m?
Second question: how does one correct the required amplifier power to account for bass management and the associated relief from the subwoofer?
It follows that the power needed to reach that level can be determined by speaker sensitivity, distance from speaker to MLP and the associated attenuation, boundary gain etc.
My first question is: how exactly is speaker sensitivity measured? What type of signal is fed to the speaker? All I understand for now is that an 8 ohm speaker receives 1 W of power and the result is measured at 1m. BTW, what is the relationship between 2.83 V = 1W into 8 ohms since sometimes the sensitivity is given in dB/2.83V.m?
Second question: how does one correct the required amplifier power to account for bass management and the associated relief from the subwoofer?