From Michael Jackson’s Thriller to a million podcast desks, the Shure SM7B is one of the most recognisable microphones ever made. Here’s what makes it special — and the one thing you must sort out before you buy.
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This is an editorial overview based on Shure’s published specifications and the SM7B’s decades-long reputation among broadcasters and engineers — not an independent lab measurement.
At a glance
- Type: cardioid dynamic microphone (XLR; no phantom power required).
- Response: smooth, wide-range frequency response with switchable bass roll-off and presence boost.
- Built in: pop filter and internal air-suspension shock isolation.
- Strengths: excellent rejection of room noise and electromagnetic hum from screens and computers.
- The catch: low output — it needs a lot of clean gain, so plan your interface or preamp accordingly.
Sound and character
The SM7B is a cardioid dynamic with a smooth, broadcast-voiced response. Its two switches — a bass roll-off and a presence (mid) boost — let you tailor it to deep voices or add intelligibility. As a dynamic, it rejects room reflections and background noise far better than a sensitive condenser, which is why it flatters untreated rooms and busy desks. Shure also builds in a pop filter and internal shock isolation, and the capsule is well shielded against hum from monitors and screens.
The gain question
Here is the one thing to settle before buying: the SM7B has low output and needs a lot of clean gain — commonly cited at around 60 dB or more for quiet voices. Budget interfaces can run out of clean gain and start to hiss. There are two fixes: pair it with an interface that has high-gain, low-noise preamps, or add an inline preamp booster (such as a Cloudlifter or FetHead) that adds clean gain over the cable. Factor that into your budget — our audio interface buying guide covers high-gain options.
Who it’s for
Podcasters, streamers, broadcasters and vocalists — especially anyone recording in an untreated room who wants a forgiving, professional sound. It’s less suited to capturing quiet, delicate detail, where a condenser in a treated room has the edge.
Verdict
A genuine long-term workhorse. The SM7B earns its reputation on voices and loud sources, and it stays relevant for years — provided you give it the clean gain it demands. If your interface can drive it, or you add a booster, few microphones are as consistently flattering. Set it up well with our vocal mic placement guide.
A smooth, broadcast-ready cardioid dynamic that rejects room noise — the SM7B’s class. See our pick.
Frequently asked questions
Does the Shure SM7B need phantom power?
No. It’s a dynamic microphone, so it doesn’t need 48V phantom power (phantom won’t damage it, but it isn’t required). What it does need is plenty of clean gain — that’s a separate consideration.
What interface or preamp do I need for the SM7B?
One with roughly 60 dB or more of clean, low-noise gain, or an inline booster such as a Cloudlifter or FetHead. See our interface buying guide for high-gain options.
