Okay, yes the DN-1000 black silicon tips will fit the M200, but you have a very small amount of space between the inner-bore of the tips and the head on the nozzle of the earphone. What you get is a very neutral sound with the M200. The bass is there, but not in the beautiful masses that it is with the stock tips. Instead, the mids really shine (especially vocals). You get deep bass when the track calls for it. Some head-fiers will love this sound with the M200. I found it okay, but I'm use to a more robust, deeper, richer bass coming out of the M200. You'll get that bass with the Comply tips. The sound is nice, but I always feel like the Complys cut something in the sound (on every earphone I've ever used the tips on). I can't quite put my finer on it, but that foam does something minute to the sound. I can't say it bothers me, but my ears notice it.
So I kept experimenting and finally found what is seemingly the perfect tips for me on the M200. It's the large blue silicon tips that came with the Audiofly AF56. This is a wide bore tip, and it's deeper too (more so than the DN-1000 tip. So now I'm getting that deep bass I love from the M200 (not as much as with the M200's stock tips, but more than enough). And I still hear tons of refined details from the mids and highs of the M200. The fit is perfect. I'm shaking my head back and forth and the M200 is not moving at all within my ear canals. I think my search may be over for the perfect tip for the M200.
