The Sennheiser E 904 is Sennheiser's would be follow up to the already fantastic E 604. The Sennheiser E 604 was a great microphone, having a really nice transient response for snares, and in the absence of the legendary MD 421 II, toms as well. Despite this, the E 604 was a strange spike at 5,000 Hz that oft times introduced a bit of strangeness into the sound. Despite this, the E 604 was described as thunderous, so does the Sennheiser E 904 improve upon this while keeping the essence that everyone has grown to love?
In a word, yes. In many, many, words, I find that the E 904 is a bit less explosive than the E 604, and thus, has a bit less of that thunder, but it is not enough of a deficit to really make a true difference in the sound unless one were looking for it. Instead of the explosiveness of the Sennheiser E 604, the E 904 is a bit warmer, and a bit punchier, so it has a bit more low end than the E 604. If you look at the frequency graph, you can find a very strange chart: the chart almost looks like it belongs to a condenser!
The Sennheiser E 904 is a dynamic microphone with a cardioid pickup pattern, so this is quite standard, and it does a good job of managing bleed. The frequency response of the E 904 starts at 40 Hz and goes all the way up to 18,000 Hz. Also to be expected.
The Sennheiser E 904 is a great microphone, perhaps not worthy of triumphing over the God of Thunder, the E 604. Instead, it offers a different, more warm and punchy tone. Sennheiser's bid to make this the successor to the E 604 would be rather ruined if it were not for the elimination of the strange spike at 5,000 Hz that he E 604 has. So if you have a bit more money to spend, and want a warmer, less bombastic sound, the E 904's are a good way to go!
Dynamic microphone for drums and percussions, see Copper ...
I use it for some years.
I also have E604 and I also use the SM57.
Compared to 604 and 57, I find it more accurate, definitely.
It is well made.
But I think for that price (or so) we can find better (M201TG dynamic and static Beyer Opus).
He is honest and I would do again, because at the time was a change for me. Compared to 604.