7. This unique feature is very handy as you handle different instruments with altering properties. Archived. FP. 609 don't waste your time. The flat front nature of the e906 makes it more of an instrument mic in form factor because it's not as easily hand-held. FP. In comparison, the MD421 has a wider frequency response, so it captures more highs and lows. The e906 has switchable frequency response curves. This makes it more like a Sennheiser MD421, EV RE20 or Shure SM7 in that regard. Close. i recently bought what I thought was a Sennheiser MD421 from a respectable recording engineer who's sound i've always admired. The 421 has more bass and less of … I have used 421's in the studio when the engineer wanted to. I have used 57's since I started playing out and recording. Sennheiser MD421 The Sennheiser MD421 (more commonly known as “the 421”) like the SM57, is a legend among amp mics. I've never used the MD421, but the e906 absolutely annihilated my SM57s for accurately reproducing what I hear coming out of the speaker. Quick, mindless setup, decent sound. (planning on using it for toms and guitar). The e906 is a bit less compressed than the SM57. Sennheiser e609 vs. MD409. Sennheiser e609 Vs e906 This isn't auditory speculation, I could actually see it on the waveforms. When I normalized the separate clips, the SM57 always needed a decibel or so more than the e906, as the e906 always had a larger visible peak in there somewhere. I've seen several reviews that claim the e904 is somewhat comparable to an md421... Closer than the price gap would lead you to think.. I think an MD421 sounds considerably better for a cab, but in a recording environment where a lead singer isn't screaming at you and there ... E906 not as good as 409 but pretty good. In addition, Sennheiser e906 is coming with three-position switchable sound character: bright, moderate, and dark. I bought the e906 a couple years ago when for use with a Grendel iso cab. Sennheiser MD421. It also would cover some of a performer's face in a live situation. Often considered the standard “alternative” to the SM57 on electric guitar… Many people agree that Sennheiser’s MD421 works just as well for the job, yet sounds noticeably different. Anyone use both of these? when it shipped to my house, i peeled the duct tape off the clip and it turns out to be a 421 II. The SM57 is a bit sweeter, mellower, and even than the e906. 2. I don't use the iso cab anymore, except for breaking in speakers, but I won't mic my cab with anything other than the e906! Sennheiser MD421 VS Sennheiser e904. Sennheiser e906 also has better sensitivity, allowing the mic to capture more subtle audio details. Sennheiser MD421 VS Sennheiser e904. MD409 v. e906 shootout. Posted by 6 years ago. ... for live. Originally designed for broadcasting and radio use, the 421 found a nice home amping Lesile speakers in organs.