Mastering the RE20: A Complete Guide to the Iconic Mic

The RE20 isn’t just another broadcast microphone; it’s a piece of audio history that’s still shaping studios today. Whether you’re tracking a snare, laying down a voice‑over, or capturing a brass section, the RE20’s distinctive character can make a modest performance sound remarkably full. This guide walks you through the mic’s origins, its engineering quirks, practical tips for getting the most out of it, and a few common pitfalls to avoid.

What Makes the RE20 a Timeless Choice?

At its core, the RE20 is a dynamic cardioid microphone built around a large‑diameter “Variable-D” diaphragm. The design was engineered to tame proximity effect, which means you can get close to the source without the low‑end ballooning into an unmanageable boom. That consistency is why radio hosts, engineers, and musicians have trusted it for almost six decades.

• Variable‑D Technology: A pair of acoustic slots behind the diaphragm neutralizes the bass boost that typically occurs when you get within a few inches of a dynamic mic.
• Robust Construction: A solid steel body and a detachable windscreen (the “pop filter”) can survive the rigors of road gigs and daily studio use.
• Broad Frequency Response: Roughly 45 Hz – 18 kHz, giving enough low‑end punch for drums while retaining clarity on vocals.

These traits combine to give the RE20 a reputation for “transparent” sound—accurate, but with a gentle warmth that many engineers describe as “musical.”

Getting Started: Positioning and Placement

Because the RE20 handles proximity well, you might be tempted to place it right up against the source. That’s often a good move, especially for vocals, but the angle matters. Aim the mic slightly off‑axis—about 10–15 degrees—to avoid any lingering sibilance while still capturing the full body of the sound.

When miking drums, the sweet spot usually lies about 2–3 inches from the head of a snare, with the capsule facing the centre of the drum. For kick drums, mount the RE20 a few inches inside the drum’s front head, angled toward the beater. The result is a tight, focused low‑end without the muddiness that a condenser might introduce.

Choosing the Right Gear to Pair with the RE20

Dynamic mics like the RE20 tend to output a modest signal level, so pairing them with a quality preamp is essential. Look for a preamp that offers at least 40 dB of clean gain and a low noise floor—units such as the Grace Design m101 or the Universal Audio Solo/610 fit the bill. If you’re on a budget, a modest 48 V phantom‑compatible preamp can also work, though the RE20 doesn’t need phantom power to function.

For those who like to record directly into a DAW, a good audio interface with a dedicated instrument input (often labeled “Hi‑Z”) will provide the necessary gain without adding excessive coloration. Remember to keep the gain knob just below clipping; the RE20’s smooth compression can mask over‑driven signals, but it won’t save a wildly distorted track.

Maintenance and Care Tips

The RE20’s detachable windscreen is both a blessing and a responsibility. Over time, the foam can collect dust, oil, or even tiny tears. Gently hand‑wash it with mild soap and warm water, then let it air dry completely before reattaching. If the windscreen gets heavily damaged, replacement units are readily available from most audio retailers.

Store the mic upright in a padded case, preferably with the diaphragm facing upward. This orientation helps prevent the capsule from being pressed against the windscreen, which could cause subtle changes to its response over time.

Common Misconceptions About the RE20

Because the RE20 has been a broadcast workhorse for decades, a few myths have sprung up. One frequent misunderstanding is that the mic is “only for male voices.” In reality, its neutral response works equally well for female vocals, spoken word, and even high‑pitched instruments like flutes—provided you adjust the placement accordingly.

Another myth is that the RE20 is “outdated” compared to modern condenser mics. While newer designs certainly offer different sonic flavors, the RE20’s lack of self‑noise and ruggedness make it a reliable choice in environments where a condenser might struggle, such as loud live rooms or outdoor field recordings.

Creative Uses Beyond the Studio

Think of the RE20 as a Swiss Army knife of microphones. Its ability to handle high SPLs means you can capture a full drum kit without a separate overload‑protected mic. Guitar amps, saxophones, and even percussive shakers respond well to the RE20’s warm midrange. Some engineers even place the mic inside a resonant chamber (like a wooden box) to add subtle coloration for cinematic sound design.

In podcasting, the RE20’s pop filter can double as a built‑in windscreen, reducing plosives without the need for an external foam cover. Pair it with a modest portable recorder, and you have a setup that’s both professional‑grade and travel‑friendly.

Buying Guide: What to Look For

If you’re hunting for a new RE20, keep an eye on these details:

• Serial Number Consistency: Genuine RE20 units carry a matching serial number on both the body and the internal metal plate.
• Condition of the Windshield: Check for cracks or excessive wear; a damaged windscreen can affect the mic’s high‑frequency response.
• Included Accessories: Original packaging often includes a mounting bracket, a protective case, and a user manual—useful for resale value.
• Seller Reputation: Reputable dealers offer a limited warranty, which can be a lifesaver if the mic develops an internal fault.

Used RE20s can be a bargain, but be sure to test them with a known source before finalizing the purchase. A quick “talk‑through” test should reveal any buzzing, rattling, or unexpected tonal dips.

FAQ

Is the RE20 suitable for recording acoustic guitars?

Yes, especially for rhythm parts. Position the mic about 12–18 inches from the sound hole, angled slightly toward the 12th fret. The RE20’s warm midrange will capture the body of the instrument while taming any harsh overtones.

Do I need phantom power for the RE20?

No. The RE20 is a true dynamic microphone and operates without phantom power. Supplying phantom won’t damage it, but it’s unnecessary.

Can the RE20 handle very loud sources like a snare rimshot?

Absolutely. The microphone’s robust diaphragm can tolerate sound pressure levels well above 140 dB, making it ideal for close‑miking drums and brass.

What’s the difference between the RE20 and the newer RE20‑A?

The RE20‑A features a slightly updated capsule design that offers a marginally smoother high‑frequency response. However, both models retain the Variable‑D technology and are interchangeable in most applications.