

You’ll need to plug this power supply box into the wall, and then you’ll use a special 7-pin cable (as opposed to a 3-pin XLR) to connect the mic to the power supply. Tube microphones are different from standard condenser microphones because they pass their signal through a vacuum tube, just like a tube guitar amp! Because of the extra power required to power the tube, these mics come with an external power supply. I’m a big fan of their outboard gear, like their compressors, EQs, and even their preamps, so it should come as no surprise that I am a fan of this microphone! What is a tube microphone? I’ve owned a handful of their products at different times, and I’ve always been impressed with the sound and build quality.

Warm Audio is one of my favorite brands for pro audio, and I often find myself recommending their stuff to my friends who want high quality gear at reasonable price. Warm Audio has taken on the challenge of creating a similar microphone at a price point that regular people can afford, and they’ve done a great job at that! The original U-47 was discontinued in 1965, and they can fetch upwards of $25,000 on the used market. The Neumann U-47 has become the stuff of legend, with studios clamoring to buy them.
