Thanks Chili for your reply! My worries are not about the sm57 (it’s quite indestructible), but about the dr40x/dr40, thinking that something might get “fried” in it... preamp?... But if you say it works just fine, then it’s great!I have the DR40 and I might have recorded with different mics in the past. Can't remember. However, it won't be a problem. There are two warnings when using external mics. 1) Don't turn phantom power on until after the mics are connected. 2) Do not use phantom power with a ribbon mic.
So for the SM57 and a condensor mice, you should be fine.
Such times indeed. Covering one’s ..s is the most important thing. Your friend’s story is quite exemplary. But for the sakes of scientific truth sacrificing a mic is a small thing to pay (easy for me to say, right?))) The innocence of Mr. Phantom is proven again!I like the notion that the equipment supplying the power could damage itself! In this day and age of covering oneself against ANY eventuality means that we get bombarded with possibilities that could, going downhill with the wind behind you cause damage, in unforeseen or impossible circumstances. Your covid jab could cause a blood clot, but statistically won't, but could. The trouble is, if your Shure SM57 died, was it the phantom, or the drop on the concrete floor the drummer kept to himself?
I cannot subscribe to all these remote possibilities now trotted out as the word of God. I used to get quite wound up by it, but in this internet world, people believe the doom and gloom far too readily. One of my friends spent ages trying to measure the diameter of the copper wire in a dynamic capsule so he could calculate it's current carrying capability, then with the maximum, current available to a mic limited by the two 680R resistors, he could categorically prove it was possible to damage them/NOT damage them. His micrometer slipped and broke the wire, and the mic ended up in the bin. He did measure it and calculated the current available was insufficient to damage the copper, and in doing the test wrecked one microphone more than phantom ever has!
I am in the camp to turn phantom power off when connecting or disconnecting mics. It's not difficult to do. However, I do recognize that it isn't necessary in most cases. When I mentioned the warning in my post above, I was reiterating what was written in the DR40 manual. Don't know why they warn against it, but I'm guessing they tested both ways and deemed it more prudent to turn phantom power off when connecting or disconnecting mics.I cant remember when my phantom power was turned off?
LOL... yup.currently of course, I’ve run out of excuses because I can shove faders and turn power on and off from my phone, but old habits die hard and I’ve never lost an HF driver doing my ‘wrong’ way for years.