bass pad sounds different

Hey there,
while sampling a drumkit and trying the new samples I recognized that the sound sounds very different (deeper with less mids und highs) when i put it on the bass pad, is there a way I can change this?
Moreover I have the problem that there is not enough punch in my kicks its more a grumble than a hit.
last thing that I really want to know is if there is a possbility to have two drumkits loaded .. for example one drumkit and one with basse and synth sounds ... and play a sequence which uses both. at the moment I can choose one which represents all sound can be used in a sequence thats a pitty.

Flo

You on a 60?
I think you may need to get the latest OS from Mr Linn.

Today I sampled again now its normal.. i must have set a strange setting. I have the recent OS. my problem at the moment is a high frequence thats coming out of every out in my mpc its in the background and I dont know were it comes from. Can anybody help me?

with kind regards ( i dont know what to write at the end of a post in germany you say sth like best wishes)

Flo