Mainly look at the speakers! If the sensitivity difference between the two speakers is 3 decibels, then the power amplifier needed is twice as bad!

For example, the sensitivity of a speaker is 103, and releasing 130 dB requires a 500W power amplifier.

The sensitivity of speaker B is 100, so it needs 1000W power amplifier to release 130 dB.

So it is not absolute! Mainly look at the speakers.