Key Considerations for Podcast Microphones
Before we compare the mics, here are critical factors to think about:
- Background Noise: Is your space quiet, or are you battling air conditioners, traffic, or quacking ducks?
- Mic Distance: How close will you speak to the mic? Closer means richer bass (more proximity effect).
- Mic Model: Does the mic’s sound profile suit your voice?
- Windscreen: Essential for reducing pops and breath noise.
- Preamp: What’s boosting your mic’s signal, and how clean is it?
- EQ/Compression: Will you tweak the sound in post-production?
- Budget: How much are you willing to spend?
- Audio vs. Video: Does your mic need to look as good as it sounds?
Your answers to these questions shape the mic selection and setup you’ll need for a polished podcast.
Budget Option: Smartphone + Car
For the ultra-budget-conscious, a smartphone in a parked car (like a 2017 sedan) can double as a mic and recording studio. The car’s acoustics dampen reflections, especially if you record from the back seat to avoid windshield bounce. Smartphones pack microphones, DSP, and editing tools, making them a surprisingly viable starter option.
Professional Microphones: Why They Matter
Podcasting borrows heavily from radio, where vocal mics have been honed for decades. Most podcasters mount mics on adjustable arms for flexibility. When choosing a mic arm, prioritize stability and noise isolation to handle heavy mics without wobbling or creaking.
Understanding Mic Specs: Pickup Patterns and Proximity Effect
Most vocal mics are unidirectional (cardioid, super-cardioid, or hyper-cardioid), meaning they focus on sound from one direction, reducing background noise. The proximity effect boosts bass when you speak closer to the mic—a feature to exploit or tame, depending on your voice and style.
Top Podcast Microphones Compared
Shure SM7B: The Podcasting King
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| Shure SM-7B, click to enlarge |
Sound and Features: The SM7B delivers a warm, natural sound with minimal proximity effect, thanks to its internal cartridge cage and RK345 foam windscreen. Two rear switches tweak the frequency response: a low-cut filter and a midrange boost. I prefer the flat setting for versatility. At 8 inches, it sounds full without overwhelming bass, ideal for close-talking podcasters. If you're mounting the SM7B on a desktop stand you'll want to engage the internal bass rolloff to eliminate low frequency rumble.
Vintage vs. Modern: I compared my 1980 SM7 to a 2004 SM7B using identical preamps. The vintage model has slightly less high-end sparkle and more bass—likely due to age—but its “classic radio” warmth is my go-to. The SM7B is nearly identical, making it a reliable choice.
Specs:
- Type: Dynamic
- Frequency Response: 50–20,000 Hz
- Impedance: 150 Ω
- Connector: XLR
- Weight: 1 lb, 11 oz
- Made in: Mexico
Best For: Podcasters wanting a proven, broadcast-ready sound.
Electro-Voice RE20: The Broadcast Veteran
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| Electro-Voice RE20 in shock mount, click to enlarge |
Sound and Features: The RE20’s flat, uniform frequency response ensures natural sound, even off-axis, making it forgiving in less-than-ideal rooms. A switchable high-pass filter cuts low-end rumble, and internal screening reduces pops and sibilance. It handles loud sources without distortion, perfect for dynamic voices.
RE20 vs. RE320: The RE320, made in China, is a cheaper alternative aimed at instrument recording (like kick drums). Stick with the USA-made RE20 for vocal clarity.
Specs:
- Type: Dynamic
- Frequency Response: 45–18,000 Hz
- Impedance: 150 Ω
- Connector: XLR
- Weight: 1 lb, 10 oz
Best For: Broadcasters and podcasters with booming voices needing clarity and off-axis rejection.
Shure MV7X: The Budget SM7B Lookalike
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| Shure MV7X microphone, click to enlarge |
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| MV7X windscreen off, click to enlarge |
Sound and Features: In A-B tests against the SM7B at 8 inches, the MV7X sounded thinner, lacking the SM7B’s low-end heft. Up close, it gains warmth and clarity, sounding clear and intelligible without being overly bright. A podcaster with 11 million X followers used the MV7X to great effect, though they recently switched to an SM7B, which sounded slightly cloudier in comparison.
Specs:
- Type: Dynamic
- Frequency Response: 50–16,000 Hz
- Impedance: 252 Ω
- Connector: XLR
- Weight: 1.21 lbs
Best For: Budget-conscious podcasters who close-talk and want a professional look.
Warm Audio WA-44: The Ribbon Showstopper
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| Warm Audio WA-44, click to enlarge |
Sound and Features: The WA-44’s proximity effect is intense, delivering booming bass up close. Without EQ, it sounds dark, with highs rolling off above 3,000 Hz. Using a Neve 1073 preamp, I applied a 50 Hz roll-off and a 3.2 kHz midrange boost, transforming it into a massive, clear sound with excellent intelligibility. Its chrome finish looks stunning on camera but may challenge lighting crews.
Specs:
- Type: Ribbon
- Frequency Response: 20–20,000 Hz (±12 dB)
- Impedance: 270 Ω
- Connector: XLR (attached cable)
- Weight: 6.2 lbs
Best For: Video podcasters with high-end preamps seeking a unique, authoritative sound.
Pricing (May 2025)
- Shure SM7B: $439
- Electro-Voice RE20: $449
- Shure MV7X: $199
- Warm Audio WA-44: $999
Which Mic Is Right for You?
No single mic suits every voice. If possible, test mics in your space to find the best match. Here’s a quick guide:
- Big, Booming Voice: The RE20 or MV7X keeps clarity without excessive bass.
- Soprano or Thin Voice: The SM7B adds warmth and fullness.
- Budget Constraints: The MV7X delivers professional results for less.
- Video Podcasts: The WA-44’s vintage look and huge sound steal the show, but it needs EQ and a robust preamp.
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| SM7B and MV7X, click to enlarge |
The Shure SM7B remains the go-to for its versatile, broadcast-ready sound—hence its ubiquity. The RE20 matches it in price and excels for clarity, especially in noisy environments. The MV7X is a steal for close-talkers, while the WA-44 is a premium pick for those with the gear, physical space and budget to unlock its potential.
EPILOGUE
Choosing a podcast mic is about balancing your voice, setup, and goals. Pair your mic with a quality preamp, a sturdy stand, and minimal room noise for pro-level results. Whether you’re starting with a smartphone or splurging on a WA-44, the right mic can elevate your podcast from hobby to powerhouse.
Thanks for reading High on Technology. Good Music To You!
© 2025 Mark King. Please don’t copy or quote without written permission from the author.
Go forth and create something beautiful.............