The possible achievable sound pressure level would then be 20*log(22/2.83) ~ 18dB above - if my calculation is correctįor the tweeter this would be 105 - and for the compression driver well above At 300W power, you would be able to achieve another 4-5dB higher sound pressure level. If you seriously want to achieve high sound pressure levels, you will use a compression driver (plus horn) anyway, and then you will be well above Īt 100W amplifier power, we would be around 22V voltage in the above example (at 5 ohm impedance). How loud should the "transients" be reproduced? An amplifier with large power reserves is certainly a fine thing, especially for enthusiasts, but for the normal average listener significantly less power should be sufficient - or not?Ī tweeter, depending on quality and impedance, will reach about sound pressure at 2.83V - let's assume at 5 ohms. Looking forward to averaged "pink noise spectrum" suggestions If clipping occurs, the tweeter power load is much higher. And also the amplifier is asked to deliver this in full amplitude and not clipped.
This is to be handled exclusively by the tweeter, so see what is the tweeter peak power. The time needed from 0V to 30V is only 38 microseconds. The trigger level was set at 30Vpeak, this would make 225Wpeak at 4ohm. The graphs are calibrated, sampled at amplifier output with 390 kHz sampling frequency. I could demonstrate a plenty of similar plots. Please let me show time record at the amplifier output, playing Secret World Live album by Peter Gabriel, Red Rain song. However, this is often not true and especially in case of some recording of rock music. It is also suggested that tweeters do not need to handle much power and that amplifier power capabilities at higher frequencies are unimportant, because of the suggestion here above. It is generally acknowledged that music signals do not contain much of high frequencies / fast transients of high amplitude and that the music signal looks like a pink noise.
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