Mainroom Warehouse Bigroom Leviathan EDM Drops For REVEAL SOUND SPiRE | 12MB Mainroom Warehouse are proud to bring you another top quality Bigroom EDM SoundSets and Midi Pack, featuring 100 x Spire Presets & 75 x Bigroom EDM Midi Loops, you can also buy the sound set separate if you do not want the full pack.