royalrepis

Yes, but you have to do it in real time using the line out from the md to the line in on your pc sound card.

Unfortunately you would either need to use a good Shotgun microphone much like the Sennheiser ME66 Short Shotgun or have some sort of parabolic dish setup. Or possibly a set of hyper card's.

I heard a rumor through the grapevine that the Oade Brothers are experimenting with this. Supposedly they are looking at possibly building a microphone systems using the Nationals chip LMV1012 and just selling it under the Oade Brothers name.

To reduce the bass during the recording you need to use a bass roll off filter or use a different polar pattern microphone. To cut the bass after the recording then you need to do what Greenmachine suggested.

Boojum, I don't know if you have seen this or not. But the guy over at Sonic Studios has what he call's the "Stereo-Surround HRTF LiteGUY". It's kind of pricey, but if you go to web site and check it out it may give you an idea of how to make your own. Here is the link. http://www.sonicstudios.com/liteguy.htm

I do not own a set of these particular microphones. But it seems like you have a set of omnidirectional element capsule mic's. Since omni's have a 360 degree capture pattern, they tend to pick up any extra reverberation in the venue. Which of course will transfer to your recording and causing too much rumble or bass in the recording. The easy way to fix this is as the previous posters have suggested by using a battery box with a bass roll off filter to roll off the excess bass. Or you can do it in post recording with some software. The other option is to purchase a set of cardioid element microphones. Cardioids have a narrower polar pattern therefore only capturing anything in front and on the sides, thus cutting out excess reverberation. But be careful when trying to select the correct polar pattern becasue there are advantages and disadvantages to every polar pattern.