No Gena, same thing. I said “percussion” grenade. Very big difference with them and a typical explosive devise. Percussion grenades use sound energy to disorientate and immobilize. The key word being energy. They pressurize an area with ‘sound’ energy. The larger the space, the lesser an effect they will have.
Same principle applies with underwater noise. Ever dive? The energy from sound under water can be very uncomfortable.
You are concentrating too hard on SPL. There are other factors here as well. Cup your hand and smack your ear. Hurts like hell doesn’t it? But yet there is no sound. It is this energy that also plays into the perception that a listener will have while listening to sound from two separate speakers (one large, one small).
