An XLR microphone is a type of microphone built with an audio transformer, often referred to as a preamp, connected through a three-pin XLR cable. It’s commonly used with standalone audio mixers or other audio equipment, including some televisions and video systems.
This guide covers what an XLR microphone is, how it works, how to use one, its pros and cons, and how it compares to a USB microphone.
Quick verdict: choose XLR if you want better long-term sound quality and more flexibility for a professional setup. Choose USB if you want something simpler, with plug-and-play convenience and no mixer or interface required.
What Is an XLR Microphone?
An XLR microphone is built around an audio transformer, commonly called a preamp. It connects via a three-pin cable to standalone audio mixers or other audio equipment.
For more on how that preamp stage works, see our guide on what a microphone preamp is.
How Does an XLR Microphone Work?
An XLR microphone works through its built-in audio transformer, or preamp. The three-pin connection allows it to plug into standalone audio mixers or video equipment.
Using XLR cables gives you a balanced audio signal, meaning any interference picked up along the cable run gets effectively filtered out, reducing overall noise. This works because the audio signal travels through positive and negative wires with opposite polarities. By the time the signal reaches the end of the cable, it’s re-inverted, which cancels out or phases out external interference.
How to Use an XLR Microphone
When using an XLR microphone, avoid pointing it directly at speakers. XLR mics are sensitive, and this can easily cause feedback. It’s also worth using a pop filter to protect against plosive sounds during recording.
Keep an eye on input levels too. If the signal feeding into your mic is too loud, it can distort the sound. Lowering the volume on your mic input as needed helps preserve sound quality.
XLR mics work well across a wide range of settings, from on-stage performances to instrument recording, but the feedback risk from pointing it at speakers and the importance of a pop filter and proper gain levels are worth keeping in mind regardless of the use case.
Benefits of Using an XLR Microphone
XLR microphones offer real advantages over other microphone types, making them a strong fit for on-stage performance or instrument recording. They work well across a wide range of settings and purposes, and the built-in preamp helps deliver noticeably better audio quality than many alternative microphone types.
Advantages of an XLR Microphone
- Delivers better audio quality than many other microphone types
- Well suited for on-stage performance and instrument recording
- Works across many different settings and use cases
- Offers more adaptability and customization
- Comes with a built-in preamp
- Allows multiple microphones to be connected simultaneously for more flexible setups
- The XLR standard is common across professional recording studios
Disadvantages of an XLR Microphone
- No on/off switch, meaning you’ll need to physically unplug it when not in use
- Generally more expensive, which may not suit a tight budget
- Can feel overwhelming for first-timers given the cables, interfaces, and phantom power involved
- Less convenient to carry around compared to simpler setups
What’s the Difference Between USB and XLR Microphones?
The main difference is that an XLR microphone requires a mixer or interface to function, while a USB microphone doesn’t need any additional hardware, making it more convenient out of the box. If you’re not familiar with what an interface does in this context, our guide on what an audio interface is covers it in detail.
XLR microphones use XLR connectivity, while USB microphones use USB connectivity, and no major brands currently offer USB mics with XLR outputs.
Another difference is that both connection types span multiple microphone categories. You can find an XLR condenser microphone as easily as a USB dynamic mic, so make sure the specific mic type matches your actual recording needs before deciding based on connector type alone.
Price is another factor worth considering. XLR microphones generally outnumber USB options on the market, and pricing across the two categories can vary significantly depending on build quality and features.
Conclusion
If you’re looking for a microphone that performs well across different settings and delivers strong audio quality, an XLR microphone is a solid choice. It offers real advantages over many dynamic microphones and remains the standard in professional recording studios, making it a strong fit whether you’re performing on stage or recording instruments.
For more on related recording fundamentals, see our guides on what a microphone preamp is, what an audio interface is, what is gain on a microphone, what does a pop filter do, and what a condenser microphone is.
