Finding the Ideal Microphone for Acoustic Guitar and Vocals

Discovering the Best Microphone for Acoustic Guitar and Vocals

Estimated reading time: 5 minutes

  • Choosing the right microphone can profoundly impact your acoustic recordings.
  • The Shure SM81 offers exceptional clarity for acoustic guitar.
  • The Neumann U 87 Ai is known for its warm, studio-standard sound.
  • The Shure SM57 provides durability and affordability for beginners.
  • Each microphone has unique strengths depending on your specific needs.

Table of Contents

Setting the Scene

A little backstory before we get into the nitty-gritty: I set up an impromptu recording session in my cozy home studio, with a good acoustic guitar (a trusty Martin OM-21, for those interested) laid out alongside a versatile vocal setup. From strumming folk tunes to belting out powerful ballads, I wanted to see how these microphones could stand up to both the demanding nuances of an acoustic performance and the varying styles of vocals.

Testing Parameters

I utilized a standard audio interface for the tests, ensuring the microphone preamps were adequately powered to really push my chosen mics. The environment was sound-treated, but not so much that I’d lose the natural acoustic character of the instruments. I made sure to record at multiple distances and angles, capturing different perspectives to see what each microphone truly delivered.

The Contenders

Shure SM81: The Acoustic Guitar Maestro

The Shure SM81 has garnered a reputation as one of the top microphones for acoustic guitar, and rightfully so. Its small-diaphragm design offers a flat frequency response that captures the true essence of the instrument.

Pros:
  • Neutral and Flat Frequency Response: Right off the bat, I was struck by how natural and uncolored the sound was. The guitar resonated beautifully, allowing tonal nuances to shine.
  • Versatility: Not only did it excel with guitar, but vocals recorded through the SM81 were detailed and precise. I particularly enjoyed how the high-end shimmer of my voice was preserved without sounding harsh.
  • Features Galore: The built-in high-pass filter and pad are lifesavers. It allowed me to control the dynamics of louder playing styles without worrying about distortion.
Cons:
  • Warmth: While the clarity is impressive, some might find it a bit too clinical for certain vocalists. If you’re after that lush warmth found in large-diaphragm condensers, this may not be your first choice.

If you want to take your acoustic recordings to the next level, you can check the latest price for the Shure SM81 here.

Neumann U 87 Ai: The Studio Standard

Ah, the Neumann U 87 Ai—often hailed as the king of studio microphones. It’s a large-diaphragm condenser mic that promises nothing short of perfection in sound reproduction.

Pros:
  • Full-Bodied Sound: When I recorded both guitar and vocals with the U 87, the warmth and richness were immediately apparent. It handles low frequencies exceptionally well, adding a lush texture to everything it captures.
  • Dynamic Range: Even with quieter vocal passages, this mic had no issues picking up details. The depth it provides is incredible, making recordings feel lively and engaging.
  • Legendary Status: It’s tough not to feel a little awe when using such a revered piece of gear. It’s often sought after for vocals and other instruments, making it a versatile choice.
Cons:
  • Pricey: The U 87 is an investment. If you’re on a budget, this can be quite the steep climb. But, for serious creators who value quality above all, it’s worth considering.

For those serious about their audio, check out the Neumann U 87 Ai here.

Shure SM57: The Workhorse

Last but definitely not least, the Shure SM57 is a staple in both live and studio settings. Frequently recommended for its ruggedness, I wanted to see how it would pair with acoustic performances.

Pros:
  • Durability: It’s built like a tank. During my testing, I felt no hesitation in mic’ing up my guitars aggressively, and it withstood all that energy with grace.
  • Focused Sound: The cardioid pattern does an admirable job of reducing background noise. It was impressive when I was playing with other instruments in the backdrop.
  • Affordable: For beginners or those needing a dependable mic without breaking the bank, this one’s a winner.
Cons:
  • Detail: While it captured sound well, I found that it lacked some of the detail present in the SM81 and U 87. This meant I had to do a bit more work in post-processing to achieve clarity for quieter passages.

For musicians and podcasters on a budget, grab the Shure SM57 here.

Sound Comparisons

After recording several tracks with each microphone, I decided to do a side-by-side listening party. Here’s a brief breakdown of my impressions:

  • Shure SM81: Sparkling highs, pronounced midrange… ideal for those quick, finger-picked passages. It felt accurate but not overly flattering.
  • Neumann U 87 Ai: Warm and full with a hint of magic—perfect for both intimate vocal moments and rich guitar soundscapes. This mic really adds a professional sheen.
  • Shure SM57: Solid and reliable sound, but it felt like the safe choice. A great all-rounder, but perhaps not quite as suited for nuanced performances like the other two.

Conclusion: Which One Should You Choose?

So, who should grab which mic?

  • If you’re a serious recording artist wanting detailed and transparent sound, and budget isn’t a constraint, the Neumann U 87 Ai will serve you well.
  • Those looking for clarity and versatility in a small-diaphragm option should definitely consider the Shure SM81. It’s excellent for acoustic guitar and performs admirably with vocals.
  • Finally, if you’re a beginner or working within budget constraints, the Shure SM57 offers unbeatable durability and performance without breaking the bank.

Every mic has its strengths, and your choice should hinge on your specific needs and preferences. No matter which mic you go with, you’re bound to enhance your sound.

And hey, if you’re eager to explore more fantastic microphones, check out Geeksper’s recommended gear for audio creators and professionals, and discover what else is out there!

FAQ

What is the best microphone for acoustic guitar?

The Shure SM81 is often cited as the best due to its flat frequency response and natural sound quality, making it ideal for acoustic guitars.

Are large-diaphragm microphones better for vocals?

Many audio professionals prefer large-diaphragm microphones, like the Neumann U 87 Ai, for vocals due to their ability to capture warmth and detail.

Can a budget microphone produce quality sound?

Yes, budget microphones like the Shure SM57 can produce high-quality sound, especially for beginners or those recording in non-professional settings.