,
Last week I went to a live orchestra and recorded some SPL measurement.
During the normal part of the music the SPL was 70-85db, on the soft passages it was 68 db, and during the loud part of the music it was 102db at the peak.
So out of ccuriosity I searched for power amplifiers calculator and found crown audio website:
https://www.crownaudio.com/en/tools/calculators
Here we can plug in the numbers and found out the power requirement for a given SPL. So my numbers at home are as follow:
Listening position: 3.25m
Desired level at listening position 72db
Loudspeaker sensitivity rating (1W/1M) : 88db
Amplifier headroom: 3 db
Power required: 1 watts
Listening position: 3.25m
Here is the power required @ 102db for an 88db efficient speakers
Desired level at listening position 102db
Loudspeaker sensitivity rating (1W/1M) : 88db
Amplifier headroom: 3 db
Power required: 529 watts
Looking at the power numbers I am not sure if an NAP135 can produce 529 watts even for a brief period. If that is the case, does the NAP135 goes into clipping at loud passages? And therefore I always felt that the transient is just a bit lacking?