Sound Ideas Crashes, Hits and Impacts Sound Effects collections are all about catastrophes, explosions and destruction. This is where you will find the sound effects to make all your disasters come to life - jarring metallic impacts, gas explosions and grenades, Molotov cocktails, and buildings crashing down around your ears! We also include emergency response units in this section – because this is definitely where they are needed. If you require some weapons to assist in your production mayhem, check out our Guns and Warfare collections.