Multi band compressors are a superior way of applying compression on drums, which can make your entire kit sound better. Multi-band compressors allow you to compress all of the drums at different levels. There are options to that allow you to customize the sound, while reducing ambient sounds from the recording room. Combining compressors allows you to customize your sound to get exactly the result you are looking for. This enables you to highlight the sounds you want, and minimize other sounds.