Nothing specific right now, but I am looking for a decent all 'round stereo mic for some ambience recording, wilderness FX, vehicle drive by's, etc.
I just noticed it has a pretty high SPL so it should be Ok for loud environments like concerts and race tracks.
The NT4 is a good place to start for ambience recording, although the fixed pattern limits its usefullness somewhat. The mic's self-noise was low enough for most exterior locations, although I found that very quiet interior room tones needed some real pushing. The stereo image was nice and smooth, giving it a pleasant sense of spaciality. I was particularly pleased by a recording of light rain falling on a porch awning, which was given a kind of warm and sleepy feeling by the mic.
For specific effects, I like the flexible width and strong centre image of an M-S setup. I'm currently using a Sennheiser MKH416t/MKH30 pairing, and I've found it flexible enough to handle most situations (in addition to the advantage of having a `416 in my kit). The NT-4, by admitedly unfair comparison, badly needs a boost in the higher frequencies to avoid that wooley sound. The NT-4 just doesn't have the in-your-face detail I like for effects work.
I tried a few car passby's with the NT-4, and although it provided a very solid sense of space and movement, the car sounded a bit sedate and mellow. You'll have to work harder to get that dramatic bite with this mic. Of course, vehicle effects often benefit from many different special-use mic's reinforcing what's happenning on a stereo pair (eg. shure SM-57 under the hood, AKG D-112 near the tail pipe, Sennheiser MKH50/MKH30 pair inside).
If you're going to record in rather extreme environments (eg. 6 hours in the pouring rain), you may wish you'd brought along a more durable mic such as the Sennheiser MKH418. Still, the NT-4's internal battery option can be handy if high RF noise levels (radio towers, powerlines, thunderstorms) cause problems with the phantom power.
I did like the fact that the NT-4 records X-Y, since its a drag sitting there decoding a day's worth of effects recording.
The included foam windscreen works well enough in the studio, but is virtually useless for outdoor work. I'm unsure whether or not Rycote makes a BBG for the NT-4. If not, then you may wind up spending more on wind supression and shock-mounting than you spend on the mic itself.
I guess the bottom line is that the NT-4 does a number of things adequately at a very reasonable price, but it won't give you the kind of dramatic quality you may be after.
Thanks SMuir, that's some great stuff. It will be one of those, just have, mics that I can go to in need. You know the times you just want to grab a mic and plug it in and get stereo sound without the set up. I do have a zeppelin for an MKH60 and 70 so I think it may fit in one of those. Currently I am using a Audio technica AT822 stereo mic and was looking to step up from that. Thanks again for your reply.