agreed on the kick compression. although a tell tale sign that you have overcompressed it is that it will start to hiss audibly.
effects should be the last thing to go on your drums. if you are EQing drums with effects on it'll only confuse things. especially if you are the type of producer that likes to chop and change drum hits or add/remove effects part way through a track. it really throws off your EQ. ill get a house beat going on my soundclick page later today after i finish uni. if you think its ok i can break it down and show you how its done. theres not many effects on it (hardly any except for alot of parametric EQs, alot of filters, alot of speccy analysers and a compressor on the kick).
theres also an article on dnbscene.com about EQ and compression called 'thinking inside the box.' it doesnt just apply to drum and bass. it applies to all types of music although if you read it you will understand better how they get those MASSIVE basslines in dnb or how they often get complex drum parts to sound clean and separated in breakbeat. its all to do with EQ and frequency overlapping. this article i swear is responsible for the single biggest leap in my production quality and the more i read it, the more i find stuff about it i didnt notice before. im still improving because of it and i recommend everyone here saves that document, reads it several times and memorises it. to the WORD!
