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SM7B vs RE20 the ultimate radio mic showdown

Published April 15, 2026 · Streamitter

SM7B vs RE20: the ultimate radio mic showdown

When it comes to radio broadcasting, choosing the right microphone is crucial for ensuring a clear and captivating audio experience. Among the top contenders in the realm of professional radio microphones are the Shure SM7B and the Electro-Voice RE20. Both have earned their place in studios around the world, revered for their unique qualities and reliable performance. In this showdown, we’ll delve into the features, strengths, and ideal use cases for each to help you make an informed decision.

Understanding the basics

The Shure SM7B and Electro-Voice RE20 are dynamic microphones, meaning they are built to handle high sound pressure levels without distortion. This makes them perfect for the robust demands of radio broadcasting. Dynamic mics are generally more durable and less sensitive to ambient noise compared to condenser microphones, which is advantageous in less-than-ideal recording environments.

Shure SM7B: A classic choice

The Shure SM7B is often celebrated for its warm, smooth sound signature. Its presence in the industry is almost legendary, having been used by countless podcasters, voice-over artists, and radio hosts. One of its standout features is the built-in air suspension shock isolation and pop filter, which significantly reduces mechanical noise and plosive sounds. This makes it a fantastic choice for close-mic applications, where clarity and warmth are paramount.

Additionally, the SM7B offers a switchable bass roll-off and mid-range emphasis (presence boost) control, which allows for greater flexibility in tailoring the sound to fit the speaker's voice or the sonic needs of the broadcast. Its cardioid polar pattern is designed to capture sound from the front while minimizing background noise, enhancing its suitability for busy studio environments.

Electro-Voice RE20: The broadcast standard

The Electro-Voice RE20 has long been regarded as the gold standard in the broadcasting world. Known for its Variable-D technology, the RE20 offers a consistent tone regardless of the distance from the microphone. This feature combats the proximity effect, which can cause an excessive bass boost when speaking close to the microphone. This makes the RE20 an excellent choice for broadcasters who move around while speaking, ensuring a consistent sound quality throughout the session.

Moreover, the RE20’s internal pop filter and humbucking coil work together to minimize plosives and electromagnetic interference, respectively. Its cardioid pattern is akin to the SM7B, focusing on capturing sound from the front while rejecting ambient noise. The RE20’s robust construction and reliable performance have made it a staple in radio stations worldwide.

Comparing sound profiles

When comparing the sound profiles of the SM7B and RE20, it’s important to consider personal preference and application. The SM7B is often described as having a more intimate and warmer sound, which can be ideal for voice-over work or podcasts where a personal connection with the audience is desired. In contrast, the RE20 is celebrated for its clarity and natural sound, making it a popular choice for live broadcasting and situations where a neutral tone is preferred.

It’s worth noting that both microphones require a decent amount of gain, so investing in a quality preamp or audio interface with sufficient gain is advisable. This ensures that you can fully harness the capabilities of these microphones without introducing unwanted noise.

Practical considerations

  • Budget: Both microphones are considered high-end and are priced similarly, but the total cost of ownership may vary depending on additional gear like preamps or stands.
  • Portability: Neither microphone is particularly portable, as they are designed for studio use. However, their rugged construction ensures durability during transport if necessary.
  • Versatility: The SM7B’s presence boost and bass roll-off make it slightly more versatile for different vocal types, while the RE20’s Variable-D technology offers consistent sound regardless of positioning.

Which should you choose?

The decision between the SM7B and RE20 ultimately boils down to your specific needs and preferences. If you prioritize a warm and intimate sound with the flexibility to tailor the frequency response, the SM7B might be your go-to. On the other hand, if you need a microphone that provides consistent sound quality and excels in live broadcasting environments, the RE20 could be the better choice.

Conclusion

Both the Shure SM7B and Electro-Voice RE20 have carved out their niches in the world of radio broadcasting, each offering unique advantages. By understanding their features and sound profiles, you can select the microphone that complements your voice and enhances your broadcasting experience.

We’d love to hear which microphone you prefer and why. Share your thoughts with us, and if you’re in the market for a new mic, consider giving both a try to see which feels like the best fit for your voice and style. Happy broadcasting!