Shure SM58 vs SM7B: Is the Upgrade Worth It for Podcasting?

A lot of podcasters already own a Shure SM58. It’s the most ubiquitous dynamic microphone ever made — the mic that’s been on every live stage, in every rehearsal room, and on every TV talk show for fifty years. If you’ve played in a band, done any live performance, or worked in a venue, you’ve used one. So the question naturally comes up: do I need to spend nearly $400 on an SM7B, or is the SM58 I already own good enough?

Shure SM58 vs SM7B: Head-to-Head Breakdown

Sound Character

The most practically significant difference between these two mics for podcasting is their frequency response curve. The SM58’s response has a deliberate presence peak around 5–10kHz — a design choice that makes voices sound forward and clear at a distance on a live stage, cutting through a loud mix. In a close-mic podcast recording, that same peak tends to add a sibilant, slightly harsh quality to speech. It’s not unworkable, but it takes EQ correction to sound as natural as the SM7B does untreated.

The SM7B was designed specifically for broadcast and close-mic studio recording. Its response is flatter and warmer, with a natural rolloff in the upper frequencies that suits speaking voices recorded at proximity. The result is a mic that sounds polished and broadcast-ready with minimal processing — which is why it became the default recommendation for podcasting in the first place. What makes the SM58 great on stage works against it in a studio context where you’re listening critically at close distance.

Off-Axis Rejection

Both mics use cardioid polar patterns and both reject off-axis sound reasonably well. Dynamic mics as a category are more forgiving of untreated room acoustics than condensers, and both the SM7B and SM58 will produce usable results in a typical home office or spare room without acoustic panels.

The SM7B’s rejection is tighter and more consistent around the capsule, which matters in reverberant spaces where reflected sound from hard walls and ceilings can add a roomy quality to recordings. The SM58’s pattern is similar in terms of pickup angle, but its presence peak also affects how room reflections are reproduced on-axis — the same boost that adds harshness to direct speech also adds it to any room sound that bleeds in. In practice, neither mic requires heavy treatment, but the SM7B’s flatter response means less work correcting the room character in post.

Pop Filtering

The SM7B ships with two removable windscreens — a standard close-talk screen and a larger studio windscreen — integrated into the mic’s internal design. These provide excellent plosive rejection for close-mic recording at typical podcast distances of 5–15cm. You don’t need an external pop filter with the SM7B, and most podcasters use it without one.

The SM58’s ball grille provides some pop protection, and it handles plosives adequately when used as designed — handheld, at arm’s length. At the closer distances typical of podcast recording, the grille’s protection is acceptable but less consistent than the SM7B’s integrated system. For occasional plosive issues, an external pop filter can be added, though it compounds the SM58’s mounting awkwardness on a desk setup.

Gain Requirements

This is where many podcasters run into practical problems with the SM7B. It has a relatively low output sensitivity and requires around 60dB of clean preamp gain to reach a usable recording level. That exceeds what many standard interfaces can deliver cleanly at their highest gain settings. The Focusrite Scarlett Solo Gen 4 tops out at 56dB, which leaves a tight margin. The standard solution is a CloudLifter CL-1 (~$70), which adds 25dB of passive gain before the signal reaches the interface’s preamp — and solves the problem cleanly.

The SM58 requires around 50dB in most setups, which falls within the comfortable range of most budget interfaces without a booster. If you’re working with an entry-level interface and want to avoid the additional CloudLifter expense, the SM58 is more practical in this specific respect. It’s one of the few areas where the SM58 has a genuine practical advantage over the SM7B.

Build and Mounting

The SM7B mounts via a threaded yoke directly to a boom arm or mic stand. It sits horizontally and positions naturally for close-mic recording at desk height. This is the use case it was designed for and it works exactly as intended in a standard podcast setup.

The SM58 is a handheld vocal mic with a cylindrical grip handle designed to be held at arm’s length while standing. It accepts a standard mic stand adapter, but its form factor means the handle extends below the capsule in an orientation that feels unnatural when positioned horizontally at desk height. You can use it on a boom arm — podcasters do — but the positioning requires more effort and the result is always a slight compromise compared to a mic built for desk use.

Shure SM58 to SM7B Upgrade: Is It Worth It for Podcasting?

If you’re recording your first episodes, testing your format, or not yet sure whether podcasting is a long-term commitment: stay on the SM58. It’s a capable dynamic mic that produces acceptable audio with minimal effort. Use the money you’d spend on the SM7B for a better interface, acoustic panels, or editing software. The quality ceiling of the SM58 is well above what your show actually needs in its early stages.

If your show is established, you’re publishing consistently, and audio quality is affecting how your show sounds relative to the competition: the upgrade is worth making. The voicing improvement is noticeable and consistent, and the internal pop filter eliminates a common close-mic issue without an additional accessory. Budget for a CloudLifter alongside the SM7B if you’re using a standard interface — the total cost of SM7B plus CloudLifter is around $465, which is the realistic price of entry for this mic.

Shure SM58 Podcast Setup: What You Actually Need

One of the most-searched terms around this mic is “Shure SM58 podcast setup” — and it makes sense. The SM58 is everywhere because it’s built for live vocals, which means people already own one or can find one for next to nothing used. But dynamic mics like the SM58 need a bit more from your chain than a USB condenser does.

Here’s a minimal Shure SM58 podcast setup that works: the SM58 → XLR cable → audio interface (like the Focusrite Scarlett Solo) → your DAW or recording software. You’ll need to crank the preamp gain, since the SM58 has a lower output than the SM7B — most interfaces can handle it, but you may notice more noise floor at high gain settings. A boom arm and pop filter round it out. For under $250 total (SM58 + Scarlett Solo), it’s a legitimately capable podcasting rig, especially if you already own the mic.

The SM7B setup is similar but with higher gain requirements — that’s why many SM7B users add a CloudLifter or Fethead in line. With the SM58, you generally don’t need that extra boost, which actually makes the SM58 easier to set up for podcasting than the SM7B in some rigs.

Best SM7B Alternatives if You’re Starting Fresh

If you don’t own either mic and you’re buying specifically for podcasting, don’t start with the SM58. At the same ~$100 price point, the Rode PodMic offers everything the SM58 doesn’t: a frequency response optimized for close-mic voice recording rather than live stage performance, a yoke mount designed for desk and boom arm use, and an integrated internal pop filter. Both are dynamic cardioid mics with similar noise rejection characteristics. The PodMic simply sounds more natural for the specific application of seated podcast recording.

If your target is the SM7B’s broadcast quality at a lower entry point, start with the Rode PodMic and save for the SM7B upgrade when your show justifies it. The PodMic closes most of the gap between a live vocal mic and a broadcast vocal mic at a fraction of the SM7B’s cost. The SM7B is a meaningful step up from the PodMic, but it also requires the CloudLifter investment to work well on most interfaces — a cost the PodMic doesn’t incur.