Are there any general guidelines for mastering a grand piano recording? I've got a stereo-matched pair of Rhode NT5's in a coincident pattern going into a Presonus Firebox then into my laptop at 24bit/96kHz. I thought I had found a good mic placement (about 12 inches above the strings, and about 12 inches back from the action, where the bass and treble string cross). Of course, it all sounds great through headphones, but when I play it through speakers, the piano sounds horrible. The worst part is that the bass booms like crazy. The mono mix doesn't seem to sound much better or worse, so I don't think the problem is phase cancellation. I've tried EQ'ing out the bass, but it's either there or gone. Now I'm experimenting with multiband compression (to compress the bass down relative to the rest of the frequencies) and then doing EQ and compression on the whole mix. But I still don't like the sound. It seems like there is too much midrange. Maybe both mics are picking up the mid and it's overpowering the stereo mix. Maybe there's a better mic placement? Should I add a room mic (I have a spare NT1 that I could use). The final app is a video project, so I am very concerned about dynamic and frequency ranges. Thanks.