"The distinctive, gold detailed MD 409N vocal microphone was Pink Floyd's microphone of choice for vocals in the late 60s and early 70s. They can be seen using these microphones in "Live in Pompeii," along with many other recorded live performances from the 70's"

Waters started using this microphone most likely in 1970, confirmed to use it in 1971 and 1972 since he used it in Set The Controls For The Heart Of The Sun - Live in Pomepii (1972), along with guitarist David Gilmour and keyboardist Richard Wright. During the live show in Abbaye de Royaumount in June 1971, he also used it

In the photo, Richard Wright is using a Sennheiser MD 409 N dynamic microphone.

Used for the electric guitar on XOXO, as stated by engineer Nick Tveitbakk in this October 28, 2020 Mix Online interview.

On some tracks, Louris played what KJ says is “the most heaviest Telecaster; it’s like a boat, but it sounds great and Gary loves it. He used that most often through a ’65 reissue Twin Reverb from the late ’90s. We also had an early Vox AC30 and a really cool Selmer Zodiac Twin. He also did some fun stuff where we put a Super Reverb in the large room and played some loud feedback with every knob on 10.

“Each amp had its own recording chain,” KJ continues. “The AC30 might go to a Black AKG 414EB. We have an SSL AWS 900, which I used as a channel for that, and on the Twin we used a Sennheiser 409, and that would have gone through either a Neve 3104 channel or one of the Calrec 1061s that we have—they’re laser-beam focused.”

The microphone list for Flowers Studio specifies an MD 409 N.

Auctioned via Julien's in 2013.

A box of various electronics modified or built by Ronnie Montrose, including two Bogner RM pedals, switch box and five inputs, Direct boxes, footswitch, FX017 Wah volume controller, Matchbox Preamp EQ, Direct box speaker simulator MB-10, a microphone, and miscellaneous cables.

12 by 12 by 6 inches

PROVENANCE From the Collection of Ronnie Montrose