Choosing a Shure Dynamic Microphone

Shure dynamic microphones range from stage vocal mics to broadcast models built for speech. The right one depends less on brand reputation and more on how it connects to your computer, how much gain your setup can supply, and how much room noise you need to reject. This guide walks through those decisions in order, then shows how to confirm the microphone works the way you expect.

Before you start

A dynamic microphone captures sound locally on your hardware. No online service is needed for it to work, although some USB models can be adjusted with optional companion software from Shure. If you install that software, check its current documentation for what it stores or sends; do not assume either way.

Have the following answers ready before comparing models:

• What you will use it for: video calls, streaming, podcast speech, singing, or miking an instrument or amplifier.
• What you will plug it into: a computer USB port directly, or an audio interface or mixer with an XLR input.
• If you have an interface, how much clean gain its preamps provide, according to its manufacturer specification.
• Your room: quiet and treated, or shared space with fans, keyboards, traffic and other background noise.
• Whether you can keep the microphone close to your mouth, since dynamic mics are designed for close use.

Step-by-step instructions

1) Decide between USB and XLR. A USB microphone appears on your computer as an input device with no extra hardware. An XLR-only microphone needs an audio interface or mixer, which then becomes the input device. Shure's MV7 family is notable because some versions offer both USB and XLR outputs, while the MV7X is XLR-only. Confirm the exact connectors of the version you are considering, since they differ between generations.

2) Match the model to the job. Use the published specifications and Shure's own product descriptions as the source of truth. As a general orientation:

• SM58: a long-standing handheld vocal microphone with a cardioid pattern and XLR output, common for live singing and speech.
• SM57: a cardioid XLR microphone widely used on instruments and guitar amplifiers, also usable for voice.
• SM7B: a broadcast-style XLR microphone aimed at close speech and vocals. It has low output, so it needs a preamp with plenty of clean gain or an inline booster.
• SM7dB: a variant of the SM7 design with a built-in preamp that is powered by phantom power from your interface.
• MV7 family: podcast and streaming microphones designed for desktop use; check each version for USB, XLR and onboard processing features.

3) Check the gain requirement against your interface. This is the most common mismatch. A low-output microphone paired with a weak preamp forces you to turn the gain to its maximum, which can add hiss. Compare the microphone's sensitivity figure with your interface's gain range in their official spec sheets before buying.

4) Consider the pickup pattern. Cardioid and supercardioid patterns reject sound from the rear and sides to different degrees. Supercardioid models, such as the Beta 58A, are tighter at the front but have a small rear pickup lobe, which matters for monitor speaker placement on stage. For a desk, plan where your speakers, computer fans and keyboard sit relative to the back of the microphone.

5) Plan mounting and accessories. Handheld models suit stands and live use; broadcast models are usually mounted on a boom arm close to the mouth. Check whether a windscreen or pop filter is included and whether the mount thread fits your stand.

6) Connect and select the device. Plug in the microphone or interface, then choose it as the input device in your operating system sound settings and again inside each call, recording or streaming app, because apps can keep their own selection. Make sure your output device is set to your headphones or speakers so you can monitor.

7) Set the input level. Speak at your normal volume at the distance you will actually use and raise the gain until peaks sit comfortably below the clipping point shown in your app or interface meter. Leave headroom for louder moments. If you use a USB model or an interface with selectable settings, pick a sample rate that matches your recording project or app; mismatched rates can cause pitch or sync issues in some software.

Check the output

Record a short test in the app you will really use, speaking at your working distance, then play it back on headphones. Listen for three things: whether your voice is clear and loud enough without being distorted, whether hiss becomes noticeable when you stop talking, and whether room sounds such as fans or typing are intrusive.

Keep in mind that call and streaming apps may apply their own noise suppression, automatic gain and compression, so a recording in one app can sound different from a local recording. If you need an unprocessed reference, record in a simple local recorder and compare. The final file format and sample rate are set by the recording software, not the microphone, so check those settings there.

Common problems and next steps

Very quiet signal with the gain turned all the way up: this is typical when a low-output model such as the SM7B is paired with a preamp that lacks enough gain. Options include an interface with more clean gain, an inline booster that uses phantom power, or a model with a built-in preamp such as the SM7dB.

Wondering about phantom power: standard dynamic microphones do not need it, and on a correctly wired XLR connection it normally does not harm them. Models with a built-in preamp, and inline boosters, do require it. Check the manual for your specific model before enabling or disabling it.

USB microphone not listed: try a different port or cable, confirm the cable carries data rather than only charging, and reopen the app after connecting, since some apps only scan for devices at launch.

Too much background noise: move the microphone closer, point its rear toward the noise source, and lower the gain slightly. A dynamic microphone used at a distance loses much of its advantage over a condenser in a noisy room.

Others hear you, but not through the new mic: the call app is probably still using a previous input device. Select the Shure microphone or your interface in that app's audio settings and run its built-in test if it has one.